Merge pull request #9845 from dcantah/prometheus-middleware-deprecated
Replace go-grpc-prometheus with go-grpc-middleware/providers/prometheus
This commit is contained in:
Phil Estes
204
vendor/github.com/grpc-ecosystem/go-grpc-middleware/.gitignore
generated
vendored
204
vendor/github.com/grpc-ecosystem/go-grpc-middleware/.gitignore
generated
vendored
@@ -1,204 +0,0 @@
|
||||
# Created by .ignore support plugin (hsz.mobi)
|
||||
### Go template
|
||||
# Compiled Object files, Static and Dynamic libs (Shared Objects)
|
||||
*.o
|
||||
*.a
|
||||
*.so
|
||||
|
||||
# Folders
|
||||
_obj
|
||||
_test
|
||||
|
||||
# Architecture specific extensions/prefixes
|
||||
*.[568vq]
|
||||
[568vq].out
|
||||
|
||||
*.cgo1.go
|
||||
*.cgo2.c
|
||||
_cgo_defun.c
|
||||
_cgo_gotypes.go
|
||||
_cgo_export.*
|
||||
|
||||
_testmain.go
|
||||
|
||||
*.exe
|
||||
*.test
|
||||
*.prof
|
||||
### Windows template
|
||||
# Windows image file caches
|
||||
Thumbs.db
|
||||
ehthumbs.db
|
||||
|
||||
# Folder config file
|
||||
Desktop.ini
|
||||
|
||||
# Recycle Bin used on file shares
|
||||
$RECYCLE.BIN/
|
||||
|
||||
# Windows Installer files
|
||||
*.cab
|
||||
*.msi
|
||||
*.msm
|
||||
*.msp
|
||||
|
||||
# Windows shortcuts
|
||||
*.lnk
|
||||
### Kate template
|
||||
# Swap Files #
|
||||
.*.kate-swp
|
||||
.swp.*
|
||||
### SublimeText template
|
||||
# cache files for sublime text
|
||||
*.tmlanguage.cache
|
||||
*.tmPreferences.cache
|
||||
*.stTheme.cache
|
||||
|
||||
# workspace files are user-specific
|
||||
*.sublime-workspace
|
||||
|
||||
# project files should be checked into the repository, unless a significant
|
||||
# proportion of contributors will probably not be using SublimeText
|
||||
# *.sublime-project
|
||||
|
||||
# sftp configuration file
|
||||
sftp-config.json
|
||||
### Linux template
|
||||
*~
|
||||
|
||||
# temporary files which can be created if a process still has a handle open of a deleted file
|
||||
.fuse_hidden*
|
||||
|
||||
# KDE directory preferences
|
||||
.directory
|
||||
|
||||
# Linux trash folder which might appear on any partition or disk
|
||||
.Trash-*
|
||||
### JetBrains template
|
||||
# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
|
||||
# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
|
||||
|
||||
# User-specific stuff:
|
||||
.idea
|
||||
.idea/tasks.xml
|
||||
.idea/dictionaries
|
||||
.idea/vcs.xml
|
||||
.idea/jsLibraryMappings.xml
|
||||
|
||||
# Sensitive or high-churn files:
|
||||
.idea/dataSources.ids
|
||||
.idea/dataSources.xml
|
||||
.idea/dataSources.local.xml
|
||||
.idea/sqlDataSources.xml
|
||||
.idea/dynamic.xml
|
||||
.idea/uiDesigner.xml
|
||||
|
||||
# Gradle:
|
||||
.idea/gradle.xml
|
||||
.idea/libraries
|
||||
|
||||
# Mongo Explorer plugin:
|
||||
.idea/mongoSettings.xml
|
||||
|
||||
## File-based project format:
|
||||
*.iws
|
||||
|
||||
## Plugin-specific files:
|
||||
|
||||
# IntelliJ
|
||||
/out/
|
||||
|
||||
# mpeltonen/sbt-idea plugin
|
||||
.idea_modules/
|
||||
|
||||
# JIRA plugin
|
||||
atlassian-ide-plugin.xml
|
||||
|
||||
# Crashlytics plugin (for Android Studio and IntelliJ)
|
||||
com_crashlytics_export_strings.xml
|
||||
crashlytics.properties
|
||||
crashlytics-build.properties
|
||||
fabric.properties
|
||||
### Xcode template
|
||||
# Xcode
|
||||
#
|
||||
# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
|
||||
|
||||
## Build generated
|
||||
build/
|
||||
DerivedData/
|
||||
|
||||
## Various settings
|
||||
*.pbxuser
|
||||
!default.pbxuser
|
||||
*.mode1v3
|
||||
!default.mode1v3
|
||||
*.mode2v3
|
||||
!default.mode2v3
|
||||
*.perspectivev3
|
||||
!default.perspectivev3
|
||||
xcuserdata/
|
||||
|
||||
## Other
|
||||
*.moved-aside
|
||||
*.xccheckout
|
||||
*.xcscmblueprint
|
||||
### Eclipse template
|
||||
|
||||
.metadata
|
||||
bin/
|
||||
tmp/
|
||||
*.tmp
|
||||
*.bak
|
||||
*.swp
|
||||
*~.nib
|
||||
local.properties
|
||||
.settings/
|
||||
.loadpath
|
||||
.recommenders
|
||||
|
||||
# Eclipse Core
|
||||
.project
|
||||
|
||||
# External tool builders
|
||||
.externalToolBuilders/
|
||||
|
||||
# Locally stored "Eclipse launch configurations"
|
||||
*.launch
|
||||
|
||||
# PyDev specific (Python IDE for Eclipse)
|
||||
*.pydevproject
|
||||
|
||||
# CDT-specific (C/C++ Development Tooling)
|
||||
.cproject
|
||||
|
||||
# JDT-specific (Eclipse Java Development Tools)
|
||||
.classpath
|
||||
|
||||
# Java annotation processor (APT)
|
||||
.factorypath
|
||||
|
||||
# PDT-specific (PHP Development Tools)
|
||||
.buildpath
|
||||
|
||||
# sbteclipse plugin
|
||||
.target
|
||||
|
||||
# Tern plugin
|
||||
.tern-project
|
||||
|
||||
# TeXlipse plugin
|
||||
.texlipse
|
||||
|
||||
# STS (Spring Tool Suite)
|
||||
.springBeans
|
||||
|
||||
# Code Recommenders
|
||||
.recommenders/
|
||||
|
||||
|
||||
coverage.txt
|
||||
|
||||
#vendor
|
||||
vendor/
|
||||
|
||||
.envrc
|
||||
20
vendor/github.com/grpc-ecosystem/go-grpc-middleware/CONTRIBUTING.md
generated
vendored
20
vendor/github.com/grpc-ecosystem/go-grpc-middleware/CONTRIBUTING.md
generated
vendored
@@ -1,20 +0,0 @@
|
||||
# Contributing
|
||||
|
||||
We would love to have people submit pull requests and help make `grpc-ecosystem/go-grpc-middleware` even better 👍.
|
||||
|
||||
Fork, then clone the repo:
|
||||
|
||||
```bash
|
||||
git clone git@github.com:your-username/go-grpc-middleware.git
|
||||
```
|
||||
|
||||
Before checking in please run the following:
|
||||
|
||||
```bash
|
||||
make all
|
||||
```
|
||||
|
||||
This will `vet`, `fmt`, regenerate documentation and run all tests.
|
||||
|
||||
|
||||
Push to your fork and open a pull request.
|
||||
93
vendor/github.com/grpc-ecosystem/go-grpc-middleware/README.md
generated
vendored
93
vendor/github.com/grpc-ecosystem/go-grpc-middleware/README.md
generated
vendored
@@ -1,93 +0,0 @@
|
||||
# Go gRPC Middleware
|
||||
|
||||
[](https://travis-ci.org/grpc-ecosystem/go-grpc-middleware)
|
||||
[](https://goreportcard.com/report/github.com/grpc-ecosystem/go-grpc-middleware)
|
||||
[](https://godoc.org/github.com/grpc-ecosystem/go-grpc-middleware)
|
||||
[](https://sourcegraph.com/github.com/grpc-ecosystem/go-grpc-middleware/?badge)
|
||||
[](https://codecov.io/gh/grpc-ecosystem/go-grpc-middleware)
|
||||
[](LICENSE)
|
||||
[](#status)
|
||||
[](https://gophers.slack.com/archives/CNJL30P4P)
|
||||
|
||||
[gRPC Go](https://github.com/grpc/grpc-go) Middleware: interceptors, helpers, utilities.
|
||||
|
||||
## ⚠️ Status
|
||||
|
||||
Version [v2](https://github.com/grpc-ecosystem/go-grpc-middleware/tree/v2) is about to be released, with migration guide, which will replace v1. Try v2 and give us feedback!
|
||||
|
||||
Version v1 is currently in deprecation mode, which means only critical and safety bug fixes will be merged.
|
||||
|
||||
|
||||
## Middleware
|
||||
|
||||
[gRPC Go](https://github.com/grpc/grpc-go) recently acquired support for
|
||||
Interceptors, i.e. [middleware](https://medium.com/@matryer/writing-middleware-in-golang-and-how-go-makes-it-so-much-fun-4375c1246e81#.gv7tdlghs)
|
||||
that is executed either on the gRPC Server before the request is passed onto the user's application logic, or on the gRPC client around the user call. It is a perfect way to implement
|
||||
common patterns: auth, logging, message, validation, retries, or monitoring.
|
||||
|
||||
These are generic building blocks that make it easy to build multiple microservices easily.
|
||||
The purpose of this repository is to act as a go-to point for such reusable functionality. It contains
|
||||
some of them itself, but also will link to useful external repos.
|
||||
|
||||
`grpc_middleware` itself provides support for chaining interceptors, here's an example:
|
||||
|
||||
```go
|
||||
import "github.com/grpc-ecosystem/go-grpc-middleware"
|
||||
|
||||
myServer := grpc.NewServer(
|
||||
grpc.StreamInterceptor(grpc_middleware.ChainStreamServer(
|
||||
grpc_ctxtags.StreamServerInterceptor(),
|
||||
grpc_opentracing.StreamServerInterceptor(),
|
||||
grpc_prometheus.StreamServerInterceptor,
|
||||
grpc_zap.StreamServerInterceptor(zapLogger),
|
||||
grpc_auth.StreamServerInterceptor(myAuthFunction),
|
||||
grpc_recovery.StreamServerInterceptor(),
|
||||
)),
|
||||
grpc.UnaryInterceptor(grpc_middleware.ChainUnaryServer(
|
||||
grpc_ctxtags.UnaryServerInterceptor(),
|
||||
grpc_opentracing.UnaryServerInterceptor(),
|
||||
grpc_prometheus.UnaryServerInterceptor,
|
||||
grpc_zap.UnaryServerInterceptor(zapLogger),
|
||||
grpc_auth.UnaryServerInterceptor(myAuthFunction),
|
||||
grpc_recovery.UnaryServerInterceptor(),
|
||||
)),
|
||||
)
|
||||
```
|
||||
|
||||
## Interceptors
|
||||
|
||||
_Please send a PR to add new interceptors or middleware to this list_
|
||||
|
||||
#### Auth
|
||||
|
||||
- [`grpc_auth`](auth) - a customizable (via `AuthFunc`) piece of auth middleware
|
||||
|
||||
#### Logging
|
||||
|
||||
- [`grpc_ctxtags`](tags/) - a library that adds a `Tag` map to context, with data populated from request body
|
||||
- [`grpc_zap`](logging/zap/) - integration of [zap](https://github.com/uber-go/zap) logging library into gRPC handlers.
|
||||
- [`grpc_logrus`](logging/logrus/) - integration of [logrus](https://github.com/sirupsen/logrus) logging library into gRPC handlers.
|
||||
- [`grpc_kit`](logging/kit/) - integration of [go-kit/log](https://github.com/go-kit/log) logging library into gRPC handlers.
|
||||
- [`grpc_grpc_logsettable`](logging/settable/) - a wrapper around `grpclog.LoggerV2` that allows to replace loggers in runtime (thread-safe).
|
||||
|
||||
#### Monitoring
|
||||
|
||||
- [`grpc_prometheus`⚡](https://github.com/grpc-ecosystem/go-grpc-prometheus) - Prometheus client-side and server-side monitoring middleware
|
||||
- [`otgrpc`⚡](https://github.com/grpc-ecosystem/grpc-opentracing/tree/master/go/otgrpc) - [OpenTracing](http://opentracing.io/) client-side and server-side interceptors
|
||||
- [`grpc_opentracing`](tracing/opentracing) - [OpenTracing](http://opentracing.io/) client-side and server-side interceptors with support for streaming and handler-returned tags
|
||||
- [`otelgrpc`](https://github.com/open-telemetry/opentelemetry-go-contrib/tree/main/instrumentation/google.golang.org/grpc/otelgrpc) - [OpenTelemetry](https://opentelemetry.io/) client-side and server-side interceptors
|
||||
|
||||
#### Client
|
||||
|
||||
- [`grpc_retry`](retry/) - a generic gRPC response code retry mechanism, client-side middleware
|
||||
|
||||
#### Server
|
||||
|
||||
- [`grpc_validator`](validator/) - codegen inbound message validation from `.proto` options
|
||||
- [`grpc_recovery`](recovery/) - turn panics into gRPC errors
|
||||
- [`ratelimit`](ratelimit/) - grpc rate limiting by your own limiter
|
||||
|
||||
|
||||
## License
|
||||
|
||||
`go-grpc-middleware` is released under the Apache 2.0 license. See the [LICENSE](LICENSE) file for details.
|
||||
166
vendor/github.com/grpc-ecosystem/go-grpc-middleware/chain.go
generated
vendored
166
vendor/github.com/grpc-ecosystem/go-grpc-middleware/chain.go
generated
vendored
@@ -1,166 +0,0 @@
|
||||
// Copyright 2016 Michal Witkowski. All Rights Reserved.
|
||||
// See LICENSE for licensing terms.
|
||||
|
||||
// gRPC Server Interceptor chaining middleware.
|
||||
|
||||
package grpc_middleware
|
||||
|
||||
import (
|
||||
"context"
|
||||
|
||||
"google.golang.org/grpc"
|
||||
)
|
||||
|
||||
// ChainUnaryServer creates a single interceptor out of a chain of many interceptors.
|
||||
//
|
||||
// Execution is done in left-to-right order, including passing of context.
|
||||
// For example ChainUnaryServer(one, two, three) will execute one before two before three, and three
|
||||
// will see context changes of one and two.
|
||||
//
|
||||
// While this can be useful in some scenarios, it is generally advisable to use google.golang.org/grpc.ChainUnaryInterceptor directly.
|
||||
func ChainUnaryServer(interceptors ...grpc.UnaryServerInterceptor) grpc.UnaryServerInterceptor {
|
||||
n := len(interceptors)
|
||||
|
||||
// Dummy interceptor maintained for backward compatibility to avoid returning nil.
|
||||
if n == 0 {
|
||||
return func(ctx context.Context, req interface{}, _ *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
|
||||
return handler(ctx, req)
|
||||
}
|
||||
}
|
||||
|
||||
// The degenerate case, just return the single wrapped interceptor directly.
|
||||
if n == 1 {
|
||||
return interceptors[0]
|
||||
}
|
||||
|
||||
// Return a function which satisfies the interceptor interface, and which is
|
||||
// a closure over the given list of interceptors to be chained.
|
||||
return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
|
||||
currHandler := handler
|
||||
// Iterate backwards through all interceptors except the first (outermost).
|
||||
// Wrap each one in a function which satisfies the handler interface, but
|
||||
// is also a closure over the `info` and `handler` parameters. Then pass
|
||||
// each pseudo-handler to the next outer interceptor as the handler to be called.
|
||||
for i := n - 1; i > 0; i-- {
|
||||
// Rebind to loop-local vars so they can be closed over.
|
||||
innerHandler, i := currHandler, i
|
||||
currHandler = func(currentCtx context.Context, currentReq interface{}) (interface{}, error) {
|
||||
return interceptors[i](currentCtx, currentReq, info, innerHandler)
|
||||
}
|
||||
}
|
||||
// Finally return the result of calling the outermost interceptor with the
|
||||
// outermost pseudo-handler created above as its handler.
|
||||
return interceptors[0](ctx, req, info, currHandler)
|
||||
}
|
||||
}
|
||||
|
||||
// ChainStreamServer creates a single interceptor out of a chain of many interceptors.
|
||||
//
|
||||
// Execution is done in left-to-right order, including passing of context.
|
||||
// For example ChainUnaryServer(one, two, three) will execute one before two before three.
|
||||
// If you want to pass context between interceptors, use WrapServerStream.
|
||||
//
|
||||
// While this can be useful in some scenarios, it is generally advisable to use google.golang.org/grpc.ChainStreamInterceptor directly.
|
||||
func ChainStreamServer(interceptors ...grpc.StreamServerInterceptor) grpc.StreamServerInterceptor {
|
||||
n := len(interceptors)
|
||||
|
||||
// Dummy interceptor maintained for backward compatibility to avoid returning nil.
|
||||
if n == 0 {
|
||||
return func(srv interface{}, stream grpc.ServerStream, _ *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
|
||||
return handler(srv, stream)
|
||||
}
|
||||
}
|
||||
|
||||
if n == 1 {
|
||||
return interceptors[0]
|
||||
}
|
||||
|
||||
return func(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
|
||||
currHandler := handler
|
||||
for i := n - 1; i > 0; i-- {
|
||||
innerHandler, i := currHandler, i
|
||||
currHandler = func(currentSrv interface{}, currentStream grpc.ServerStream) error {
|
||||
return interceptors[i](currentSrv, currentStream, info, innerHandler)
|
||||
}
|
||||
}
|
||||
return interceptors[0](srv, stream, info, currHandler)
|
||||
}
|
||||
}
|
||||
|
||||
// ChainUnaryClient creates a single interceptor out of a chain of many interceptors.
|
||||
//
|
||||
// Execution is done in left-to-right order, including passing of context.
|
||||
// For example ChainUnaryClient(one, two, three) will execute one before two before three.
|
||||
func ChainUnaryClient(interceptors ...grpc.UnaryClientInterceptor) grpc.UnaryClientInterceptor {
|
||||
n := len(interceptors)
|
||||
|
||||
// Dummy interceptor maintained for backward compatibility to avoid returning nil.
|
||||
if n == 0 {
|
||||
return func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
|
||||
return invoker(ctx, method, req, reply, cc, opts...)
|
||||
}
|
||||
}
|
||||
|
||||
if n == 1 {
|
||||
return interceptors[0]
|
||||
}
|
||||
|
||||
return func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
|
||||
currInvoker := invoker
|
||||
for i := n - 1; i > 0; i-- {
|
||||
innerInvoker, i := currInvoker, i
|
||||
currInvoker = func(currentCtx context.Context, currentMethod string, currentReq, currentRepl interface{}, currentConn *grpc.ClientConn, currentOpts ...grpc.CallOption) error {
|
||||
return interceptors[i](currentCtx, currentMethod, currentReq, currentRepl, currentConn, innerInvoker, currentOpts...)
|
||||
}
|
||||
}
|
||||
return interceptors[0](ctx, method, req, reply, cc, currInvoker, opts...)
|
||||
}
|
||||
}
|
||||
|
||||
// ChainStreamClient creates a single interceptor out of a chain of many interceptors.
|
||||
//
|
||||
// Execution is done in left-to-right order, including passing of context.
|
||||
// For example ChainStreamClient(one, two, three) will execute one before two before three.
|
||||
func ChainStreamClient(interceptors ...grpc.StreamClientInterceptor) grpc.StreamClientInterceptor {
|
||||
n := len(interceptors)
|
||||
|
||||
// Dummy interceptor maintained for backward compatibility to avoid returning nil.
|
||||
if n == 0 {
|
||||
return func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
|
||||
return streamer(ctx, desc, cc, method, opts...)
|
||||
}
|
||||
}
|
||||
|
||||
if n == 1 {
|
||||
return interceptors[0]
|
||||
}
|
||||
|
||||
return func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
|
||||
currStreamer := streamer
|
||||
for i := n - 1; i > 0; i-- {
|
||||
innerStreamer, i := currStreamer, i
|
||||
currStreamer = func(currentCtx context.Context, currentDesc *grpc.StreamDesc, currentConn *grpc.ClientConn, currentMethod string, currentOpts ...grpc.CallOption) (grpc.ClientStream, error) {
|
||||
return interceptors[i](currentCtx, currentDesc, currentConn, currentMethod, innerStreamer, currentOpts...)
|
||||
}
|
||||
}
|
||||
return interceptors[0](ctx, desc, cc, method, currStreamer, opts...)
|
||||
}
|
||||
}
|
||||
|
||||
// Chain creates a single interceptor out of a chain of many interceptors.
|
||||
//
|
||||
// WithUnaryServerChain is a grpc.Server config option that accepts multiple unary interceptors.
|
||||
// Basically syntactic sugar.
|
||||
//
|
||||
// Deprecated: use google.golang.org/grpc.ChainUnaryInterceptor instead.
|
||||
func WithUnaryServerChain(interceptors ...grpc.UnaryServerInterceptor) grpc.ServerOption {
|
||||
return grpc.ChainUnaryInterceptor(interceptors...)
|
||||
}
|
||||
|
||||
// WithStreamServerChain is a grpc.Server config option that accepts multiple stream interceptors.
|
||||
// Basically syntactic sugar.
|
||||
//
|
||||
// Deprecated: use google.golang.org/grpc.ChainStreamInterceptor instead.
|
||||
func WithStreamServerChain(interceptors ...grpc.StreamServerInterceptor) grpc.ServerOption {
|
||||
return grpc.ChainStreamInterceptor(interceptors...)
|
||||
}
|
||||
69
vendor/github.com/grpc-ecosystem/go-grpc-middleware/doc.go
generated
vendored
69
vendor/github.com/grpc-ecosystem/go-grpc-middleware/doc.go
generated
vendored
@@ -1,69 +0,0 @@
|
||||
// Copyright 2016 Michal Witkowski. All Rights Reserved.
|
||||
// See LICENSE for licensing terms.
|
||||
|
||||
/*
|
||||
`grpc_middleware` is a collection of gRPC middleware packages: interceptors, helpers and tools.
|
||||
|
||||
Middleware
|
||||
|
||||
gRPC is a fantastic RPC middleware, which sees a lot of adoption in the Golang world. However, the
|
||||
upstream gRPC codebase is relatively bare bones.
|
||||
|
||||
This package, and most of its child packages provides commonly needed middleware for gRPC:
|
||||
client-side interceptors for retires, server-side interceptors for input validation and auth,
|
||||
functions for chaining said interceptors, metadata convenience methods and more.
|
||||
|
||||
Chaining
|
||||
|
||||
By default, gRPC doesn't allow one to have more than one interceptor either on the client nor on
|
||||
the server side. `grpc_middleware` provides convenient chaining methods
|
||||
|
||||
Simple way of turning a multiple interceptors into a single interceptor. Here's an example for
|
||||
server chaining:
|
||||
|
||||
myServer := grpc.NewServer(
|
||||
grpc.StreamInterceptor(grpc_middleware.ChainStreamServer(loggingStream, monitoringStream, authStream)),
|
||||
grpc.UnaryInterceptor(grpc_middleware.ChainUnaryServer(loggingUnary, monitoringUnary, authUnary)),
|
||||
)
|
||||
|
||||
These interceptors will be executed from left to right: logging, monitoring and auth.
|
||||
|
||||
Here's an example for client side chaining:
|
||||
|
||||
clientConn, err = grpc.Dial(
|
||||
address,
|
||||
grpc.WithUnaryInterceptor(grpc_middleware.ChainUnaryClient(monitoringClientUnary, retryUnary)),
|
||||
grpc.WithStreamInterceptor(grpc_middleware.ChainStreamClient(monitoringClientStream, retryStream)),
|
||||
)
|
||||
client = pb_testproto.NewTestServiceClient(clientConn)
|
||||
resp, err := client.PingEmpty(s.ctx, &myservice.Request{Msg: "hello"})
|
||||
|
||||
These interceptors will be executed from left to right: monitoring and then retry logic.
|
||||
|
||||
The retry interceptor will call every interceptor that follows it whenever when a retry happens.
|
||||
|
||||
Writing Your Own
|
||||
|
||||
Implementing your own interceptor is pretty trivial: there are interfaces for that. But the interesting
|
||||
bit exposing common data to handlers (and other middleware), similarly to HTTP Middleware design.
|
||||
For example, you may want to pass the identity of the caller from the auth interceptor all the way
|
||||
to the handling function.
|
||||
|
||||
For example, a client side interceptor example for auth looks like:
|
||||
|
||||
func FakeAuthUnaryInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
|
||||
newCtx := context.WithValue(ctx, "user_id", "john@example.com")
|
||||
return handler(newCtx, req)
|
||||
}
|
||||
|
||||
Unfortunately, it's not as easy for streaming RPCs. These have the `context.Context` embedded within
|
||||
the `grpc.ServerStream` object. To pass values through context, a wrapper (`WrappedServerStream`) is
|
||||
needed. For example:
|
||||
|
||||
func FakeAuthStreamingInterceptor(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
|
||||
newStream := grpc_middleware.WrapServerStream(stream)
|
||||
newStream.WrappedContext = context.WithValue(ctx, "user_id", "john@example.com")
|
||||
return handler(srv, newStream)
|
||||
}
|
||||
*/
|
||||
package grpc_middleware
|
||||
17
vendor/github.com/grpc-ecosystem/go-grpc-middleware/makefile
generated
vendored
17
vendor/github.com/grpc-ecosystem/go-grpc-middleware/makefile
generated
vendored
@@ -1,17 +0,0 @@
|
||||
SHELL=/bin/bash
|
||||
|
||||
GOFILES_NOVENDOR = $(shell go list ./... | grep -v /vendor/)
|
||||
|
||||
all: vet fmt test
|
||||
|
||||
fmt:
|
||||
go fmt $(GOFILES_NOVENDOR)
|
||||
|
||||
vet:
|
||||
# do not check lostcancel, they are intentional.
|
||||
go vet -lostcancel=false $(GOFILES_NOVENDOR)
|
||||
|
||||
test: vet
|
||||
./scripts/test_all.sh
|
||||
|
||||
.PHONY: all test
|
||||
117
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/client_metrics.go
generated
vendored
Normal file
117
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/client_metrics.go
generated
vendored
Normal file
@@ -0,0 +1,117 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors"
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
"google.golang.org/grpc"
|
||||
)
|
||||
|
||||
// ClientMetrics represents a collection of metrics to be registered on a
|
||||
// Prometheus metrics registry for a gRPC client.
|
||||
type ClientMetrics struct {
|
||||
clientStartedCounter *prometheus.CounterVec
|
||||
clientHandledCounter *prometheus.CounterVec
|
||||
clientStreamMsgReceived *prometheus.CounterVec
|
||||
clientStreamMsgSent *prometheus.CounterVec
|
||||
|
||||
// clientHandledHistogram can be nil
|
||||
clientHandledHistogram *prometheus.HistogramVec
|
||||
// clientStreamRecvHistogram can be nil
|
||||
clientStreamRecvHistogram *prometheus.HistogramVec
|
||||
// clientStreamSendHistogram can be nil
|
||||
clientStreamSendHistogram *prometheus.HistogramVec
|
||||
}
|
||||
|
||||
// NewClientMetrics returns a new ClientMetrics object.
|
||||
// NOTE: Remember to register ClientMetrics object using prometheus registry
|
||||
// e.g. prometheus.MustRegister(myClientMetrics).
|
||||
func NewClientMetrics(opts ...ClientMetricsOption) *ClientMetrics {
|
||||
var config clientMetricsConfig
|
||||
config.apply(opts)
|
||||
return &ClientMetrics{
|
||||
clientStartedCounter: prometheus.NewCounterVec(
|
||||
config.counterOpts.apply(prometheus.CounterOpts{
|
||||
Name: "grpc_client_started_total",
|
||||
Help: "Total number of RPCs started on the client.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
|
||||
clientHandledCounter: prometheus.NewCounterVec(
|
||||
config.counterOpts.apply(prometheus.CounterOpts{
|
||||
Name: "grpc_client_handled_total",
|
||||
Help: "Total number of RPCs completed by the client, regardless of success or failure.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method", "grpc_code"}),
|
||||
|
||||
clientStreamMsgReceived: prometheus.NewCounterVec(
|
||||
config.counterOpts.apply(prometheus.CounterOpts{
|
||||
Name: "grpc_client_msg_received_total",
|
||||
Help: "Total number of RPC stream messages received by the client.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
|
||||
clientStreamMsgSent: prometheus.NewCounterVec(
|
||||
config.counterOpts.apply(prometheus.CounterOpts{
|
||||
Name: "grpc_client_msg_sent_total",
|
||||
Help: "Total number of gRPC stream messages sent by the client.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
|
||||
clientHandledHistogram: config.clientHandledHistogram,
|
||||
clientStreamRecvHistogram: config.clientStreamRecvHistogram,
|
||||
clientStreamSendHistogram: config.clientStreamSendHistogram,
|
||||
}
|
||||
}
|
||||
|
||||
// Describe sends the super-set of all possible descriptors of metrics
|
||||
// collected by this Collector to the provided channel and returns once
|
||||
// the last descriptor has been sent.
|
||||
func (m *ClientMetrics) Describe(ch chan<- *prometheus.Desc) {
|
||||
m.clientStartedCounter.Describe(ch)
|
||||
m.clientHandledCounter.Describe(ch)
|
||||
m.clientStreamMsgReceived.Describe(ch)
|
||||
m.clientStreamMsgSent.Describe(ch)
|
||||
if m.clientHandledHistogram != nil {
|
||||
m.clientHandledHistogram.Describe(ch)
|
||||
}
|
||||
if m.clientStreamRecvHistogram != nil {
|
||||
m.clientStreamRecvHistogram.Describe(ch)
|
||||
}
|
||||
if m.clientStreamSendHistogram != nil {
|
||||
m.clientStreamSendHistogram.Describe(ch)
|
||||
}
|
||||
}
|
||||
|
||||
// Collect is called by the Prometheus registry when collecting
|
||||
// metrics. The implementation sends each collected metric via the
|
||||
// provided channel and returns once the last metric has been sent.
|
||||
func (m *ClientMetrics) Collect(ch chan<- prometheus.Metric) {
|
||||
m.clientStartedCounter.Collect(ch)
|
||||
m.clientHandledCounter.Collect(ch)
|
||||
m.clientStreamMsgReceived.Collect(ch)
|
||||
m.clientStreamMsgSent.Collect(ch)
|
||||
if m.clientHandledHistogram != nil {
|
||||
m.clientHandledHistogram.Collect(ch)
|
||||
}
|
||||
if m.clientStreamRecvHistogram != nil {
|
||||
m.clientStreamRecvHistogram.Collect(ch)
|
||||
}
|
||||
if m.clientStreamSendHistogram != nil {
|
||||
m.clientStreamSendHistogram.Collect(ch)
|
||||
}
|
||||
}
|
||||
|
||||
// UnaryClientInterceptor is a gRPC client-side interceptor that provides Prometheus monitoring for Unary RPCs.
|
||||
func (m *ClientMetrics) UnaryClientInterceptor(opts ...Option) grpc.UnaryClientInterceptor {
|
||||
return interceptors.UnaryClientInterceptor(&reportable{
|
||||
opts: opts,
|
||||
clientMetrics: m,
|
||||
})
|
||||
}
|
||||
|
||||
// StreamClientInterceptor is a gRPC client-side interceptor that provides Prometheus monitoring for Streaming RPCs.
|
||||
func (m *ClientMetrics) StreamClientInterceptor(opts ...Option) grpc.StreamClientInterceptor {
|
||||
return interceptors.StreamClientInterceptor(&reportable{
|
||||
opts: opts,
|
||||
clientMetrics: m,
|
||||
})
|
||||
}
|
||||
77
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/client_options.go
generated
vendored
Normal file
77
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/client_options.go
generated
vendored
Normal file
@@ -0,0 +1,77 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
)
|
||||
|
||||
type clientMetricsConfig struct {
|
||||
counterOpts counterOptions
|
||||
// clientHandledHistogram can be nil.
|
||||
clientHandledHistogram *prometheus.HistogramVec
|
||||
// clientStreamRecvHistogram can be nil.
|
||||
clientStreamRecvHistogram *prometheus.HistogramVec
|
||||
// clientStreamSendHistogram can be nil.
|
||||
clientStreamSendHistogram *prometheus.HistogramVec
|
||||
}
|
||||
|
||||
type ClientMetricsOption func(*clientMetricsConfig)
|
||||
|
||||
func (c *clientMetricsConfig) apply(opts []ClientMetricsOption) {
|
||||
for _, o := range opts {
|
||||
o(c)
|
||||
}
|
||||
}
|
||||
|
||||
func WithClientCounterOptions(opts ...CounterOption) ClientMetricsOption {
|
||||
return func(o *clientMetricsConfig) {
|
||||
o.counterOpts = opts
|
||||
}
|
||||
}
|
||||
|
||||
// WithClientHandlingTimeHistogram turns on recording of handling time of RPCs.
|
||||
// Histogram metrics can be very expensive for Prometheus to retain and query.
|
||||
func WithClientHandlingTimeHistogram(opts ...HistogramOption) ClientMetricsOption {
|
||||
return func(o *clientMetricsConfig) {
|
||||
o.clientHandledHistogram = prometheus.NewHistogramVec(
|
||||
histogramOptions(opts).apply(prometheus.HistogramOpts{
|
||||
Name: "grpc_client_handling_seconds",
|
||||
Help: "Histogram of response latency (seconds) of the gRPC until it is finished by the application.",
|
||||
Buckets: prometheus.DefBuckets,
|
||||
}),
|
||||
[]string{"grpc_type", "grpc_service", "grpc_method"},
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
// WithClientStreamRecvHistogram turns on recording of single message receive time of streaming RPCs.
|
||||
// Histogram metrics can be very expensive for Prometheus to retain and query.
|
||||
func WithClientStreamRecvHistogram(opts ...HistogramOption) ClientMetricsOption {
|
||||
return func(o *clientMetricsConfig) {
|
||||
o.clientStreamRecvHistogram = prometheus.NewHistogramVec(
|
||||
histogramOptions(opts).apply(prometheus.HistogramOpts{
|
||||
Name: "grpc_client_msg_recv_handling_seconds",
|
||||
Help: "Histogram of response latency (seconds) of the gRPC single message receive.",
|
||||
Buckets: prometheus.DefBuckets,
|
||||
}),
|
||||
[]string{"grpc_type", "grpc_service", "grpc_method"},
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
// WithClientStreamSendHistogram turns on recording of single message send time of streaming RPCs.
|
||||
// Histogram metrics can be very expensive for Prometheus to retain and query.
|
||||
func WithClientStreamSendHistogram(opts ...HistogramOption) ClientMetricsOption {
|
||||
return func(o *clientMetricsConfig) {
|
||||
o.clientStreamSendHistogram = prometheus.NewHistogramVec(
|
||||
histogramOptions(opts).apply(prometheus.HistogramOpts{
|
||||
Name: "grpc_client_msg_send_handling_seconds",
|
||||
Help: "Histogram of response latency (seconds) of the gRPC single message send.",
|
||||
Buckets: prometheus.DefBuckets,
|
||||
}),
|
||||
[]string{"grpc_type", "grpc_service", "grpc_method"},
|
||||
)
|
||||
}
|
||||
}
|
||||
23
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/constants.go
generated
vendored
Normal file
23
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/constants.go
generated
vendored
Normal file
@@ -0,0 +1,23 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
package prometheus
|
||||
|
||||
type grpcType string
|
||||
|
||||
// grpcType describes all types of grpc connection.
|
||||
const (
|
||||
Unary grpcType = "unary"
|
||||
ClientStream grpcType = "client_stream"
|
||||
ServerStream grpcType = "server_stream"
|
||||
BidiStream grpcType = "bidi_stream"
|
||||
)
|
||||
|
||||
// Kind describes whether interceptor is a client or server type.
|
||||
type Kind string
|
||||
|
||||
// Enum for Client and Server Kind.
|
||||
const (
|
||||
KindClient Kind = "client"
|
||||
KindServer Kind = "server"
|
||||
)
|
||||
8
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/doc.go
generated
vendored
Normal file
8
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/doc.go
generated
vendored
Normal file
@@ -0,0 +1,8 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
/*
|
||||
Package prometheus provides a standalone interceptor for metrics. It's next iteration of deprecated https://github.com/grpc-ecosystem/go-grpc-prometheus.
|
||||
See https://github.com/grpc-ecosystem/go-grpc-middleware/tree/main/examples for example.
|
||||
*/
|
||||
package prometheus
|
||||
129
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/options.go
generated
vendored
Normal file
129
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/options.go
generated
vendored
Normal file
@@ -0,0 +1,129 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
"google.golang.org/grpc"
|
||||
"google.golang.org/grpc/status"
|
||||
)
|
||||
|
||||
// FromError returns a grpc status. If the error code is neither a valid grpc status nor a context error, codes.Unknown
|
||||
// will be set.
|
||||
func FromError(err error) *status.Status {
|
||||
s, ok := status.FromError(err)
|
||||
// Mirror what the grpc server itself does, i.e. also convert context errors to status
|
||||
if !ok {
|
||||
s = status.FromContextError(err)
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
// A CounterOption lets you add options to Counter metrics using With* funcs.
|
||||
type CounterOption func(*prometheus.CounterOpts)
|
||||
|
||||
type counterOptions []CounterOption
|
||||
|
||||
func (co counterOptions) apply(o prometheus.CounterOpts) prometheus.CounterOpts {
|
||||
for _, f := range co {
|
||||
f(&o)
|
||||
}
|
||||
return o
|
||||
}
|
||||
|
||||
// WithConstLabels allows you to add ConstLabels to Counter metrics.
|
||||
func WithConstLabels(labels prometheus.Labels) CounterOption {
|
||||
return func(o *prometheus.CounterOpts) {
|
||||
o.ConstLabels = labels
|
||||
}
|
||||
}
|
||||
|
||||
// WithSubsystem allows you to add a Subsystem to Counter metrics.
|
||||
func WithSubsystem(subsystem string) CounterOption {
|
||||
return func(o *prometheus.CounterOpts) {
|
||||
o.Subsystem = subsystem
|
||||
}
|
||||
}
|
||||
|
||||
// A HistogramOption lets you add options to Histogram metrics using With*
|
||||
// funcs.
|
||||
type HistogramOption func(*prometheus.HistogramOpts)
|
||||
|
||||
type histogramOptions []HistogramOption
|
||||
|
||||
func (ho histogramOptions) apply(o prometheus.HistogramOpts) prometheus.HistogramOpts {
|
||||
for _, f := range ho {
|
||||
f(&o)
|
||||
}
|
||||
return o
|
||||
}
|
||||
|
||||
// WithHistogramBuckets allows you to specify custom bucket ranges for histograms if EnableHandlingTimeHistogram is on.
|
||||
func WithHistogramBuckets(buckets []float64) HistogramOption {
|
||||
return func(o *prometheus.HistogramOpts) { o.Buckets = buckets }
|
||||
}
|
||||
|
||||
// WithHistogramOpts allows you to specify HistogramOpts but makes sure the correct name and label is used.
|
||||
// This function is helpful when specifying more than just the buckets, like using NativeHistograms.
|
||||
func WithHistogramOpts(opts *prometheus.HistogramOpts) HistogramOption {
|
||||
// TODO: This isn't ideal either if new fields are added to prometheus.HistogramOpts.
|
||||
// Maybe we can change the interface to accept abitrary HistogramOpts and
|
||||
// only make sure to overwrite the necessary fields (name, labels).
|
||||
return func(o *prometheus.HistogramOpts) {
|
||||
o.Buckets = opts.Buckets
|
||||
o.NativeHistogramBucketFactor = opts.NativeHistogramBucketFactor
|
||||
o.NativeHistogramZeroThreshold = opts.NativeHistogramZeroThreshold
|
||||
o.NativeHistogramMaxBucketNumber = opts.NativeHistogramMaxBucketNumber
|
||||
o.NativeHistogramMinResetDuration = opts.NativeHistogramMinResetDuration
|
||||
o.NativeHistogramMaxZeroThreshold = opts.NativeHistogramMaxZeroThreshold
|
||||
}
|
||||
}
|
||||
|
||||
// WithHistogramConstLabels allows you to add custom ConstLabels to
|
||||
// histograms metrics.
|
||||
func WithHistogramConstLabels(labels prometheus.Labels) HistogramOption {
|
||||
return func(o *prometheus.HistogramOpts) {
|
||||
o.ConstLabels = labels
|
||||
}
|
||||
}
|
||||
|
||||
// WithHistogramSubsystem allows you to add a Subsystem to histograms metrics.
|
||||
func WithHistogramSubsystem(subsystem string) HistogramOption {
|
||||
return func(o *prometheus.HistogramOpts) {
|
||||
o.Subsystem = subsystem
|
||||
}
|
||||
}
|
||||
|
||||
func typeFromMethodInfo(mInfo *grpc.MethodInfo) grpcType {
|
||||
if !mInfo.IsClientStream && !mInfo.IsServerStream {
|
||||
return Unary
|
||||
}
|
||||
if mInfo.IsClientStream && !mInfo.IsServerStream {
|
||||
return ClientStream
|
||||
}
|
||||
if !mInfo.IsClientStream && mInfo.IsServerStream {
|
||||
return ServerStream
|
||||
}
|
||||
return BidiStream
|
||||
}
|
||||
|
||||
// An Option lets you add options to prometheus interceptors using With* funcs.
|
||||
type Option func(*config)
|
||||
|
||||
type config struct {
|
||||
exemplarFn exemplarFromCtxFn
|
||||
}
|
||||
|
||||
func (c *config) apply(opts []Option) {
|
||||
for _, o := range opts {
|
||||
o(c)
|
||||
}
|
||||
}
|
||||
|
||||
// WithExemplarFromContext sets function that will be used to deduce exemplar for all counter and histogram metrics.
|
||||
func WithExemplarFromContext(exemplarFn exemplarFromCtxFn) Option {
|
||||
return func(o *config) {
|
||||
o.exemplarFn = exemplarFn
|
||||
}
|
||||
}
|
||||
113
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/reporter.go
generated
vendored
Normal file
113
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/reporter.go
generated
vendored
Normal file
@@ -0,0 +1,113 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"context"
|
||||
"time"
|
||||
|
||||
"github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors"
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
)
|
||||
|
||||
type reporter struct {
|
||||
clientMetrics *ClientMetrics
|
||||
serverMetrics *ServerMetrics
|
||||
typ interceptors.GRPCType
|
||||
service, method string
|
||||
kind Kind
|
||||
exemplar prometheus.Labels
|
||||
}
|
||||
|
||||
func (r *reporter) PostCall(err error, rpcDuration time.Duration) {
|
||||
// get status code from error
|
||||
status := FromError(err)
|
||||
code := status.Code()
|
||||
|
||||
// perform handling of metrics from code
|
||||
switch r.kind {
|
||||
case KindServer:
|
||||
r.incrementWithExemplar(r.serverMetrics.serverHandledCounter, string(r.typ), r.service, r.method, code.String())
|
||||
if r.serverMetrics.serverHandledHistogram != nil {
|
||||
r.observeWithExemplar(r.serverMetrics.serverHandledHistogram, rpcDuration.Seconds(), string(r.typ), r.service, r.method)
|
||||
}
|
||||
|
||||
case KindClient:
|
||||
r.incrementWithExemplar(r.clientMetrics.clientHandledCounter, string(r.typ), r.service, r.method, code.String())
|
||||
if r.clientMetrics.clientHandledHistogram != nil {
|
||||
r.observeWithExemplar(r.clientMetrics.clientHandledHistogram, rpcDuration.Seconds(), string(r.typ), r.service, r.method)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (r *reporter) PostMsgSend(_ any, _ error, sendDuration time.Duration) {
|
||||
switch r.kind {
|
||||
case KindServer:
|
||||
r.incrementWithExemplar(r.serverMetrics.serverStreamMsgSent, string(r.typ), r.service, r.method)
|
||||
case KindClient:
|
||||
r.incrementWithExemplar(r.clientMetrics.clientStreamMsgSent, string(r.typ), r.service, r.method)
|
||||
if r.clientMetrics.clientStreamSendHistogram != nil {
|
||||
r.observeWithExemplar(r.clientMetrics.clientStreamSendHistogram, sendDuration.Seconds(), string(r.typ), r.service, r.method)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (r *reporter) PostMsgReceive(_ any, _ error, recvDuration time.Duration) {
|
||||
switch r.kind {
|
||||
case KindServer:
|
||||
r.incrementWithExemplar(r.serverMetrics.serverStreamMsgReceived, string(r.typ), r.service, r.method)
|
||||
case KindClient:
|
||||
r.incrementWithExemplar(r.clientMetrics.clientStreamMsgReceived, string(r.typ), r.service, r.method)
|
||||
if r.clientMetrics.clientStreamRecvHistogram != nil {
|
||||
r.observeWithExemplar(r.clientMetrics.clientStreamRecvHistogram, recvDuration.Seconds(), string(r.typ), r.service, r.method)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type reportable struct {
|
||||
clientMetrics *ClientMetrics
|
||||
serverMetrics *ServerMetrics
|
||||
|
||||
opts []Option
|
||||
}
|
||||
|
||||
func (rep *reportable) ServerReporter(ctx context.Context, meta interceptors.CallMeta) (interceptors.Reporter, context.Context) {
|
||||
return rep.reporter(ctx, rep.serverMetrics, nil, meta, KindServer)
|
||||
}
|
||||
|
||||
func (rep *reportable) ClientReporter(ctx context.Context, meta interceptors.CallMeta) (interceptors.Reporter, context.Context) {
|
||||
return rep.reporter(ctx, nil, rep.clientMetrics, meta, KindClient)
|
||||
}
|
||||
|
||||
func (rep *reportable) reporter(ctx context.Context, sm *ServerMetrics, cm *ClientMetrics, meta interceptors.CallMeta, kind Kind) (interceptors.Reporter, context.Context) {
|
||||
var c config
|
||||
c.apply(rep.opts)
|
||||
r := &reporter{
|
||||
clientMetrics: cm,
|
||||
serverMetrics: sm,
|
||||
typ: meta.Typ,
|
||||
service: meta.Service,
|
||||
method: meta.Method,
|
||||
kind: kind,
|
||||
}
|
||||
if c.exemplarFn != nil {
|
||||
r.exemplar = c.exemplarFn(ctx)
|
||||
}
|
||||
|
||||
switch kind {
|
||||
case KindClient:
|
||||
r.incrementWithExemplar(r.clientMetrics.clientStartedCounter, string(r.typ), r.service, r.method)
|
||||
case KindServer:
|
||||
r.incrementWithExemplar(r.serverMetrics.serverStartedCounter, string(r.typ), r.service, r.method)
|
||||
}
|
||||
return r, ctx
|
||||
}
|
||||
|
||||
func (r *reporter) incrementWithExemplar(c *prometheus.CounterVec, lvals ...string) {
|
||||
c.WithLabelValues(lvals...).(prometheus.ExemplarAdder).AddWithExemplar(1, r.exemplar)
|
||||
}
|
||||
|
||||
func (r *reporter) observeWithExemplar(h *prometheus.HistogramVec, value float64, lvals ...string) {
|
||||
h.WithLabelValues(lvals...).(prometheus.ExemplarObserver).ObserveWithExemplar(value, r.exemplar)
|
||||
}
|
||||
123
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/server_metrics.go
generated
vendored
Normal file
123
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/server_metrics.go
generated
vendored
Normal file
@@ -0,0 +1,123 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors"
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
"google.golang.org/grpc"
|
||||
)
|
||||
|
||||
// ServerMetrics represents a collection of metrics to be registered on a
|
||||
// Prometheus metrics registry for a gRPC server.
|
||||
type ServerMetrics struct {
|
||||
serverStartedCounter *prometheus.CounterVec
|
||||
serverHandledCounter *prometheus.CounterVec
|
||||
serverStreamMsgReceived *prometheus.CounterVec
|
||||
serverStreamMsgSent *prometheus.CounterVec
|
||||
// serverHandledHistogram can be nil.
|
||||
serverHandledHistogram *prometheus.HistogramVec
|
||||
}
|
||||
|
||||
// NewServerMetrics returns a new ServerMetrics object that has server interceptor methods.
|
||||
// NOTE: Remember to register ServerMetrics object by using prometheus registry
|
||||
// e.g. prometheus.MustRegister(myServerMetrics).
|
||||
func NewServerMetrics(opts ...ServerMetricsOption) *ServerMetrics {
|
||||
var config serverMetricsConfig
|
||||
config.apply(opts)
|
||||
return &ServerMetrics{
|
||||
serverStartedCounter: prometheus.NewCounterVec(
|
||||
config.counterOpts.apply(prometheus.CounterOpts{
|
||||
Name: "grpc_server_started_total",
|
||||
Help: "Total number of RPCs started on the server.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
serverHandledCounter: prometheus.NewCounterVec(
|
||||
config.counterOpts.apply(prometheus.CounterOpts{
|
||||
Name: "grpc_server_handled_total",
|
||||
Help: "Total number of RPCs completed on the server, regardless of success or failure.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method", "grpc_code"}),
|
||||
serverStreamMsgReceived: prometheus.NewCounterVec(
|
||||
config.counterOpts.apply(prometheus.CounterOpts{
|
||||
Name: "grpc_server_msg_received_total",
|
||||
Help: "Total number of RPC stream messages received on the server.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
serverStreamMsgSent: prometheus.NewCounterVec(
|
||||
config.counterOpts.apply(prometheus.CounterOpts{
|
||||
Name: "grpc_server_msg_sent_total",
|
||||
Help: "Total number of gRPC stream messages sent by the server.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
serverHandledHistogram: config.serverHandledHistogram,
|
||||
}
|
||||
}
|
||||
|
||||
// Describe sends the super-set of all possible descriptors of metrics
|
||||
// collected by this Collector to the provided channel and returns once
|
||||
// the last descriptor has been sent.
|
||||
func (m *ServerMetrics) Describe(ch chan<- *prometheus.Desc) {
|
||||
m.serverStartedCounter.Describe(ch)
|
||||
m.serverHandledCounter.Describe(ch)
|
||||
m.serverStreamMsgReceived.Describe(ch)
|
||||
m.serverStreamMsgSent.Describe(ch)
|
||||
if m.serverHandledHistogram != nil {
|
||||
m.serverHandledHistogram.Describe(ch)
|
||||
}
|
||||
}
|
||||
|
||||
// Collect is called by the Prometheus registry when collecting
|
||||
// metrics. The implementation sends each collected metric via the
|
||||
// provided channel and returns once the last metric has been sent.
|
||||
func (m *ServerMetrics) Collect(ch chan<- prometheus.Metric) {
|
||||
m.serverStartedCounter.Collect(ch)
|
||||
m.serverHandledCounter.Collect(ch)
|
||||
m.serverStreamMsgReceived.Collect(ch)
|
||||
m.serverStreamMsgSent.Collect(ch)
|
||||
if m.serverHandledHistogram != nil {
|
||||
m.serverHandledHistogram.Collect(ch)
|
||||
}
|
||||
}
|
||||
|
||||
// InitializeMetrics initializes all metrics, with their appropriate null
|
||||
// value, for all gRPC methods registered on a gRPC server. This is useful, to
|
||||
// ensure that all metrics exist when collecting and querying.
|
||||
// NOTE: This might add significant cardinality and might not be needed in future version of Prometheus (created timestamp).
|
||||
func (m *ServerMetrics) InitializeMetrics(server *grpc.Server) {
|
||||
serviceInfo := server.GetServiceInfo()
|
||||
for serviceName, info := range serviceInfo {
|
||||
for _, mInfo := range info.Methods {
|
||||
m.preRegisterMethod(serviceName, &mInfo)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// preRegisterMethod is invoked on Register of a Server, allowing all gRPC services labels to be pre-populated.
|
||||
func (m *ServerMetrics) preRegisterMethod(serviceName string, mInfo *grpc.MethodInfo) {
|
||||
methodName := mInfo.Name
|
||||
methodType := string(typeFromMethodInfo(mInfo))
|
||||
// These are just references (no increments), as just referencing will create the labels but not set values.
|
||||
_, _ = m.serverStartedCounter.GetMetricWithLabelValues(methodType, serviceName, methodName)
|
||||
_, _ = m.serverStreamMsgReceived.GetMetricWithLabelValues(methodType, serviceName, methodName)
|
||||
_, _ = m.serverStreamMsgSent.GetMetricWithLabelValues(methodType, serviceName, methodName)
|
||||
if m.serverHandledHistogram != nil {
|
||||
_, _ = m.serverHandledHistogram.GetMetricWithLabelValues(methodType, serviceName, methodName)
|
||||
}
|
||||
for _, code := range interceptors.AllCodes {
|
||||
_, _ = m.serverHandledCounter.GetMetricWithLabelValues(methodType, serviceName, methodName, code.String())
|
||||
}
|
||||
}
|
||||
|
||||
// UnaryServerInterceptor is a gRPC server-side interceptor that provides Prometheus monitoring for Unary RPCs.
|
||||
func (m *ServerMetrics) UnaryServerInterceptor(opts ...Option) grpc.UnaryServerInterceptor {
|
||||
return interceptors.UnaryServerInterceptor(&reportable{
|
||||
opts: opts,
|
||||
serverMetrics: m,
|
||||
})
|
||||
}
|
||||
|
||||
// StreamServerInterceptor is a gRPC server-side interceptor that provides Prometheus monitoring for Streaming RPCs.
|
||||
func (m *ServerMetrics) StreamServerInterceptor(opts ...Option) grpc.StreamServerInterceptor {
|
||||
return interceptors.StreamServerInterceptor(&reportable{
|
||||
opts: opts,
|
||||
serverMetrics: m,
|
||||
})
|
||||
}
|
||||
48
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/server_options.go
generated
vendored
Normal file
48
vendor/github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus/server_options.go
generated
vendored
Normal file
@@ -0,0 +1,48 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
package prometheus
|
||||
|
||||
import (
|
||||
"context"
|
||||
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
)
|
||||
|
||||
type exemplarFromCtxFn func(ctx context.Context) prometheus.Labels
|
||||
|
||||
type serverMetricsConfig struct {
|
||||
counterOpts counterOptions
|
||||
// serverHandledHistogram can be nil.
|
||||
serverHandledHistogram *prometheus.HistogramVec
|
||||
}
|
||||
|
||||
type ServerMetricsOption func(*serverMetricsConfig)
|
||||
|
||||
func (c *serverMetricsConfig) apply(opts []ServerMetricsOption) {
|
||||
for _, o := range opts {
|
||||
o(c)
|
||||
}
|
||||
}
|
||||
|
||||
// WithServerCounterOptions sets counter options.
|
||||
func WithServerCounterOptions(opts ...CounterOption) ServerMetricsOption {
|
||||
return func(o *serverMetricsConfig) {
|
||||
o.counterOpts = opts
|
||||
}
|
||||
}
|
||||
|
||||
// WithServerHandlingTimeHistogram turns on recording of handling time of RPCs.
|
||||
// Histogram metrics can be very expensive for Prometheus to retain and query.
|
||||
func WithServerHandlingTimeHistogram(opts ...HistogramOption) ServerMetricsOption {
|
||||
return func(o *serverMetricsConfig) {
|
||||
o.serverHandledHistogram = prometheus.NewHistogramVec(
|
||||
histogramOptions(opts).apply(prometheus.HistogramOpts{
|
||||
Name: "grpc_server_handling_seconds",
|
||||
Help: "Histogram of response latency (seconds) of gRPC that had been application-level handled by the server.",
|
||||
Buckets: prometheus.DefBuckets,
|
||||
}),
|
||||
[]string{"grpc_type", "grpc_service", "grpc_method"},
|
||||
)
|
||||
}
|
||||
}
|
||||
BIN
vendor/github.com/grpc-ecosystem/go-grpc-middleware/slack.png
generated
vendored
BIN
vendor/github.com/grpc-ecosystem/go-grpc-middleware/slack.png
generated
vendored
Binary file not shown.
|
Before Width: | Height: | Size: 5.0 KiB |
2
vendor/github.com/grpc-ecosystem/go-grpc-middleware/v2/COPYRIGHT
generated
vendored
Normal file
2
vendor/github.com/grpc-ecosystem/go-grpc-middleware/v2/COPYRIGHT
generated
vendored
Normal file
@@ -0,0 +1,2 @@
|
||||
Copyright (c) The go-grpc-middleware Authors.
|
||||
Licensed under the Apache License 2.0.
|
||||
83
vendor/github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/client.go
generated
vendored
Normal file
83
vendor/github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/client.go
generated
vendored
Normal file
@@ -0,0 +1,83 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
// Go gRPC Middleware monitoring interceptors for client-side gRPC.
|
||||
|
||||
package interceptors
|
||||
|
||||
import (
|
||||
"context"
|
||||
"io"
|
||||
"time"
|
||||
|
||||
"google.golang.org/grpc"
|
||||
)
|
||||
|
||||
// UnaryClientInterceptor is a gRPC client-side interceptor that provides reporting for Unary RPCs.
|
||||
func UnaryClientInterceptor(reportable ClientReportable) grpc.UnaryClientInterceptor {
|
||||
return func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
|
||||
r := newReport(Unary, method)
|
||||
reporter, newCtx := reportable.ClientReporter(ctx, CallMeta{ReqProtoOrNil: req, Typ: r.rpcType, Service: r.service, Method: r.method})
|
||||
|
||||
reporter.PostMsgSend(req, nil, time.Since(r.startTime))
|
||||
err := invoker(newCtx, method, req, reply, cc, opts...)
|
||||
reporter.PostMsgReceive(reply, err, time.Since(r.startTime))
|
||||
reporter.PostCall(err, time.Since(r.startTime))
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// StreamClientInterceptor is a gRPC client-side interceptor that provides reporting for Stream RPCs.
|
||||
func StreamClientInterceptor(reportable ClientReportable) grpc.StreamClientInterceptor {
|
||||
return func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
|
||||
r := newReport(clientStreamType(desc), method)
|
||||
reporter, newCtx := reportable.ClientReporter(ctx, CallMeta{ReqProtoOrNil: nil, Typ: r.rpcType, Service: r.service, Method: r.method})
|
||||
|
||||
clientStream, err := streamer(newCtx, desc, cc, method, opts...)
|
||||
if err != nil {
|
||||
reporter.PostCall(err, time.Since(r.startTime))
|
||||
return nil, err
|
||||
}
|
||||
return &monitoredClientStream{ClientStream: clientStream, startTime: r.startTime, reporter: reporter}, nil
|
||||
}
|
||||
}
|
||||
|
||||
func clientStreamType(desc *grpc.StreamDesc) GRPCType {
|
||||
if desc.ClientStreams && !desc.ServerStreams {
|
||||
return ClientStream
|
||||
} else if !desc.ClientStreams && desc.ServerStreams {
|
||||
return ServerStream
|
||||
}
|
||||
return BidiStream
|
||||
}
|
||||
|
||||
// monitoredClientStream wraps grpc.ClientStream allowing each Sent/Recv of message to report.
|
||||
type monitoredClientStream struct {
|
||||
grpc.ClientStream
|
||||
|
||||
startTime time.Time
|
||||
reporter Reporter
|
||||
}
|
||||
|
||||
func (s *monitoredClientStream) SendMsg(m interface{}) error {
|
||||
start := time.Now()
|
||||
err := s.ClientStream.SendMsg(m)
|
||||
s.reporter.PostMsgSend(m, err, time.Since(start))
|
||||
return err
|
||||
}
|
||||
|
||||
func (s *monitoredClientStream) RecvMsg(m interface{}) error {
|
||||
start := time.Now()
|
||||
err := s.ClientStream.RecvMsg(m)
|
||||
s.reporter.PostMsgReceive(m, err, time.Since(start))
|
||||
|
||||
if err == nil {
|
||||
return nil
|
||||
}
|
||||
var postErr error
|
||||
if err != io.EOF {
|
||||
postErr = err
|
||||
}
|
||||
s.reporter.PostCall(postErr, time.Since(s.startTime))
|
||||
return err
|
||||
}
|
||||
12
vendor/github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/doc.go
generated
vendored
Normal file
12
vendor/github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/doc.go
generated
vendored
Normal file
@@ -0,0 +1,12 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
//
|
||||
/*
|
||||
interceptor is an internal package used by higher level middlewares. It allows injecting custom code in various
|
||||
places of the gRPC lifecycle.
|
||||
|
||||
This particular package is intended for use by other middleware, metric, logging or otherwise.
|
||||
This allows code to be shared between different implementations.
|
||||
*/
|
||||
package interceptors
|
||||
116
vendor/github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/reporter.go
generated
vendored
Normal file
116
vendor/github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/reporter.go
generated
vendored
Normal file
@@ -0,0 +1,116 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
package interceptors
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"google.golang.org/grpc/codes"
|
||||
)
|
||||
|
||||
type GRPCType string
|
||||
|
||||
// Timer is a helper interface to time functions.
|
||||
// Useful for interceptors to record the total
|
||||
// time elapsed since completion of a call.
|
||||
type Timer interface {
|
||||
ObserveDuration() time.Duration
|
||||
}
|
||||
|
||||
// zeroTimer.
|
||||
type zeroTimer struct {
|
||||
}
|
||||
|
||||
func (zeroTimer) ObserveDuration() time.Duration {
|
||||
return 0
|
||||
}
|
||||
|
||||
var EmptyTimer = &zeroTimer{}
|
||||
|
||||
const (
|
||||
Unary GRPCType = "unary"
|
||||
ClientStream GRPCType = "client_stream"
|
||||
ServerStream GRPCType = "server_stream"
|
||||
BidiStream GRPCType = "bidi_stream"
|
||||
)
|
||||
|
||||
var (
|
||||
AllCodes = []codes.Code{
|
||||
codes.OK, codes.Canceled, codes.Unknown, codes.InvalidArgument, codes.DeadlineExceeded, codes.NotFound,
|
||||
codes.AlreadyExists, codes.PermissionDenied, codes.Unauthenticated, codes.ResourceExhausted,
|
||||
codes.FailedPrecondition, codes.Aborted, codes.OutOfRange, codes.Unimplemented, codes.Internal,
|
||||
codes.Unavailable, codes.DataLoss,
|
||||
}
|
||||
)
|
||||
|
||||
func SplitMethodName(fullMethod string) (string, string) {
|
||||
fullMethod = strings.TrimPrefix(fullMethod, "/") // remove leading slash
|
||||
if i := strings.Index(fullMethod, "/"); i >= 0 {
|
||||
return fullMethod[:i], fullMethod[i+1:]
|
||||
}
|
||||
return "unknown", "unknown"
|
||||
}
|
||||
|
||||
type CallMeta struct {
|
||||
ReqProtoOrNil interface{}
|
||||
Typ GRPCType
|
||||
Service string
|
||||
Method string
|
||||
}
|
||||
|
||||
func (c CallMeta) FullMethod() string {
|
||||
return fmt.Sprintf("/%s/%s", c.Service, c.Method)
|
||||
}
|
||||
|
||||
type ClientReportable interface {
|
||||
ClientReporter(context.Context, CallMeta) (Reporter, context.Context)
|
||||
}
|
||||
|
||||
type ServerReportable interface {
|
||||
ServerReporter(context.Context, CallMeta) (Reporter, context.Context)
|
||||
}
|
||||
|
||||
// CommonReportableFunc helper allows an easy way to implement reporter with common client and server logic.
|
||||
type CommonReportableFunc func(ctx context.Context, c CallMeta, isClient bool) (Reporter, context.Context)
|
||||
|
||||
func (f CommonReportableFunc) ClientReporter(ctx context.Context, c CallMeta) (Reporter, context.Context) {
|
||||
return f(ctx, c, true)
|
||||
}
|
||||
|
||||
func (f CommonReportableFunc) ServerReporter(ctx context.Context, c CallMeta) (Reporter, context.Context) {
|
||||
return f(ctx, c, false)
|
||||
}
|
||||
|
||||
type Reporter interface {
|
||||
PostCall(err error, rpcDuration time.Duration)
|
||||
PostMsgSend(reqProto interface{}, err error, sendDuration time.Duration)
|
||||
PostMsgReceive(replyProto interface{}, err error, recvDuration time.Duration)
|
||||
}
|
||||
|
||||
var _ Reporter = NoopReporter{}
|
||||
|
||||
type NoopReporter struct{}
|
||||
|
||||
func (NoopReporter) PostCall(error, time.Duration) {}
|
||||
func (NoopReporter) PostMsgSend(interface{}, error, time.Duration) {}
|
||||
func (NoopReporter) PostMsgReceive(interface{}, error, time.Duration) {}
|
||||
|
||||
type report struct {
|
||||
rpcType GRPCType
|
||||
service string
|
||||
method string
|
||||
startTime time.Time
|
||||
}
|
||||
|
||||
func newReport(typ GRPCType, fullMethod string) report {
|
||||
r := report{
|
||||
startTime: time.Now(),
|
||||
rpcType: typ,
|
||||
}
|
||||
r.service, r.method = SplitMethodName(fullMethod)
|
||||
return r
|
||||
}
|
||||
74
vendor/github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/server.go
generated
vendored
Normal file
74
vendor/github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/server.go
generated
vendored
Normal file
@@ -0,0 +1,74 @@
|
||||
// Copyright (c) The go-grpc-middleware Authors.
|
||||
// Licensed under the Apache License 2.0.
|
||||
|
||||
// Go gRPC Middleware monitoring interceptors for server-side gRPC.
|
||||
|
||||
package interceptors
|
||||
|
||||
import (
|
||||
"context"
|
||||
"time"
|
||||
|
||||
"google.golang.org/grpc"
|
||||
)
|
||||
|
||||
// UnaryServerInterceptor is a gRPC server-side interceptor that provides reporting for Unary RPCs.
|
||||
func UnaryServerInterceptor(reportable ServerReportable) grpc.UnaryServerInterceptor {
|
||||
return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
|
||||
r := newReport(Unary, info.FullMethod)
|
||||
reporter, newCtx := reportable.ServerReporter(ctx, CallMeta{ReqProtoOrNil: req, Typ: r.rpcType, Service: r.service, Method: r.method})
|
||||
|
||||
reporter.PostMsgReceive(req, nil, time.Since(r.startTime))
|
||||
resp, err := handler(newCtx, req)
|
||||
reporter.PostMsgSend(resp, err, time.Since(r.startTime))
|
||||
|
||||
reporter.PostCall(err, time.Since(r.startTime))
|
||||
return resp, err
|
||||
}
|
||||
}
|
||||
|
||||
// StreamServerInterceptor is a gRPC server-side interceptor that provides reporting for Streaming RPCs.
|
||||
func StreamServerInterceptor(reportable ServerReportable) grpc.StreamServerInterceptor {
|
||||
return func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
|
||||
r := newReport(ServerStream, info.FullMethod)
|
||||
reporter, newCtx := reportable.ServerReporter(ss.Context(), CallMeta{ReqProtoOrNil: nil, Typ: StreamRPCType(info), Service: r.service, Method: r.method})
|
||||
err := handler(srv, &monitoredServerStream{ServerStream: ss, newCtx: newCtx, reporter: reporter})
|
||||
reporter.PostCall(err, time.Since(r.startTime))
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
func StreamRPCType(info *grpc.StreamServerInfo) GRPCType {
|
||||
if info.IsClientStream && !info.IsServerStream {
|
||||
return ClientStream
|
||||
} else if !info.IsClientStream && info.IsServerStream {
|
||||
return ServerStream
|
||||
}
|
||||
return BidiStream
|
||||
}
|
||||
|
||||
// monitoredStream wraps grpc.ServerStream allowing each Sent/Recv of message to report.
|
||||
type monitoredServerStream struct {
|
||||
grpc.ServerStream
|
||||
|
||||
newCtx context.Context
|
||||
reporter Reporter
|
||||
}
|
||||
|
||||
func (s *monitoredServerStream) Context() context.Context {
|
||||
return s.newCtx
|
||||
}
|
||||
|
||||
func (s *monitoredServerStream) SendMsg(m interface{}) error {
|
||||
start := time.Now()
|
||||
err := s.ServerStream.SendMsg(m)
|
||||
s.reporter.PostMsgSend(m, err, time.Since(start))
|
||||
return err
|
||||
}
|
||||
|
||||
func (s *monitoredServerStream) RecvMsg(m interface{}) error {
|
||||
start := time.Now()
|
||||
err := s.ServerStream.RecvMsg(m)
|
||||
s.reporter.PostMsgReceive(m, err, time.Since(start))
|
||||
return err
|
||||
}
|
||||
30
vendor/github.com/grpc-ecosystem/go-grpc-middleware/wrappers.go
generated
vendored
30
vendor/github.com/grpc-ecosystem/go-grpc-middleware/wrappers.go
generated
vendored
@@ -1,30 +0,0 @@
|
||||
// Copyright 2016 Michal Witkowski. All Rights Reserved.
|
||||
// See LICENSE for licensing terms.
|
||||
|
||||
package grpc_middleware
|
||||
|
||||
import (
|
||||
"context"
|
||||
|
||||
"google.golang.org/grpc"
|
||||
)
|
||||
|
||||
// WrappedServerStream is a thin wrapper around grpc.ServerStream that allows modifying context.
|
||||
type WrappedServerStream struct {
|
||||
grpc.ServerStream
|
||||
// WrappedContext is the wrapper's own Context. You can assign it.
|
||||
WrappedContext context.Context
|
||||
}
|
||||
|
||||
// Context returns the wrapper's WrappedContext, overwriting the nested grpc.ServerStream.Context()
|
||||
func (w *WrappedServerStream) Context() context.Context {
|
||||
return w.WrappedContext
|
||||
}
|
||||
|
||||
// WrapServerStream returns a ServerStream that has the ability to overwrite context.
|
||||
func WrapServerStream(stream grpc.ServerStream) *WrappedServerStream {
|
||||
if existing, ok := stream.(*WrappedServerStream); ok {
|
||||
return existing
|
||||
}
|
||||
return &WrappedServerStream{ServerStream: stream, WrappedContext: stream.Context()}
|
||||
}
|
||||
201
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/.gitignore
generated
vendored
201
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/.gitignore
generated
vendored
@@ -1,201 +0,0 @@
|
||||
#vendor
|
||||
vendor/
|
||||
|
||||
# Created by .ignore support plugin (hsz.mobi)
|
||||
coverage.txt
|
||||
### Go template
|
||||
# Compiled Object files, Static and Dynamic libs (Shared Objects)
|
||||
*.o
|
||||
*.a
|
||||
*.so
|
||||
|
||||
# Folders
|
||||
_obj
|
||||
_test
|
||||
|
||||
# Architecture specific extensions/prefixes
|
||||
*.[568vq]
|
||||
[568vq].out
|
||||
|
||||
*.cgo1.go
|
||||
*.cgo2.c
|
||||
_cgo_defun.c
|
||||
_cgo_gotypes.go
|
||||
_cgo_export.*
|
||||
|
||||
_testmain.go
|
||||
|
||||
*.exe
|
||||
*.test
|
||||
*.prof
|
||||
### Windows template
|
||||
# Windows image file caches
|
||||
Thumbs.db
|
||||
ehthumbs.db
|
||||
|
||||
# Folder config file
|
||||
Desktop.ini
|
||||
|
||||
# Recycle Bin used on file shares
|
||||
$RECYCLE.BIN/
|
||||
|
||||
# Windows Installer files
|
||||
*.cab
|
||||
*.msi
|
||||
*.msm
|
||||
*.msp
|
||||
|
||||
# Windows shortcuts
|
||||
*.lnk
|
||||
### Kate template
|
||||
# Swap Files #
|
||||
.*.kate-swp
|
||||
.swp.*
|
||||
### SublimeText template
|
||||
# cache files for sublime text
|
||||
*.tmlanguage.cache
|
||||
*.tmPreferences.cache
|
||||
*.stTheme.cache
|
||||
|
||||
# workspace files are user-specific
|
||||
*.sublime-workspace
|
||||
|
||||
# project files should be checked into the repository, unless a significant
|
||||
# proportion of contributors will probably not be using SublimeText
|
||||
# *.sublime-project
|
||||
|
||||
# sftp configuration file
|
||||
sftp-config.json
|
||||
### Linux template
|
||||
*~
|
||||
|
||||
# temporary files which can be created if a process still has a handle open of a deleted file
|
||||
.fuse_hidden*
|
||||
|
||||
# KDE directory preferences
|
||||
.directory
|
||||
|
||||
# Linux trash folder which might appear on any partition or disk
|
||||
.Trash-*
|
||||
### JetBrains template
|
||||
# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
|
||||
# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
|
||||
|
||||
# User-specific stuff:
|
||||
.idea
|
||||
.idea/tasks.xml
|
||||
.idea/dictionaries
|
||||
.idea/vcs.xml
|
||||
.idea/jsLibraryMappings.xml
|
||||
|
||||
# Sensitive or high-churn files:
|
||||
.idea/dataSources.ids
|
||||
.idea/dataSources.xml
|
||||
.idea/dataSources.local.xml
|
||||
.idea/sqlDataSources.xml
|
||||
.idea/dynamic.xml
|
||||
.idea/uiDesigner.xml
|
||||
|
||||
# Gradle:
|
||||
.idea/gradle.xml
|
||||
.idea/libraries
|
||||
|
||||
# Mongo Explorer plugin:
|
||||
.idea/mongoSettings.xml
|
||||
|
||||
## File-based project format:
|
||||
*.iws
|
||||
|
||||
## Plugin-specific files:
|
||||
|
||||
# IntelliJ
|
||||
/out/
|
||||
|
||||
# mpeltonen/sbt-idea plugin
|
||||
.idea_modules/
|
||||
|
||||
# JIRA plugin
|
||||
atlassian-ide-plugin.xml
|
||||
|
||||
# Crashlytics plugin (for Android Studio and IntelliJ)
|
||||
com_crashlytics_export_strings.xml
|
||||
crashlytics.properties
|
||||
crashlytics-build.properties
|
||||
fabric.properties
|
||||
### Xcode template
|
||||
# Xcode
|
||||
#
|
||||
# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
|
||||
|
||||
## Build generated
|
||||
build/
|
||||
DerivedData/
|
||||
|
||||
## Various settings
|
||||
*.pbxuser
|
||||
!default.pbxuser
|
||||
*.mode1v3
|
||||
!default.mode1v3
|
||||
*.mode2v3
|
||||
!default.mode2v3
|
||||
*.perspectivev3
|
||||
!default.perspectivev3
|
||||
xcuserdata/
|
||||
|
||||
## Other
|
||||
*.moved-aside
|
||||
*.xccheckout
|
||||
*.xcscmblueprint
|
||||
### Eclipse template
|
||||
|
||||
.metadata
|
||||
bin/
|
||||
tmp/
|
||||
*.tmp
|
||||
*.bak
|
||||
*.swp
|
||||
*~.nib
|
||||
local.properties
|
||||
.settings/
|
||||
.loadpath
|
||||
.recommenders
|
||||
|
||||
# Eclipse Core
|
||||
.project
|
||||
|
||||
# External tool builders
|
||||
.externalToolBuilders/
|
||||
|
||||
# Locally stored "Eclipse launch configurations"
|
||||
*.launch
|
||||
|
||||
# PyDev specific (Python IDE for Eclipse)
|
||||
*.pydevproject
|
||||
|
||||
# CDT-specific (C/C++ Development Tooling)
|
||||
.cproject
|
||||
|
||||
# JDT-specific (Eclipse Java Development Tools)
|
||||
.classpath
|
||||
|
||||
# Java annotation processor (APT)
|
||||
.factorypath
|
||||
|
||||
# PDT-specific (PHP Development Tools)
|
||||
.buildpath
|
||||
|
||||
# sbteclipse plugin
|
||||
.target
|
||||
|
||||
# Tern plugin
|
||||
.tern-project
|
||||
|
||||
# TeXlipse plugin
|
||||
.texlipse
|
||||
|
||||
# STS (Spring Tool Suite)
|
||||
.springBeans
|
||||
|
||||
# Code Recommenders
|
||||
.recommenders/
|
||||
|
||||
25
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/.travis.yml
generated
vendored
25
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/.travis.yml
generated
vendored
@@ -1,25 +0,0 @@
|
||||
sudo: false
|
||||
language: go
|
||||
# * github.com/grpc/grpc-go still supports go1.6
|
||||
# - When we drop support for go1.6 we can remove golang.org/x/net/context
|
||||
# below as it is part of the Go std library since go1.7
|
||||
# * github.com/prometheus/client_golang already requires at least go1.7 since
|
||||
# September 2017
|
||||
go:
|
||||
- 1.6.x
|
||||
- 1.7.x
|
||||
- 1.8.x
|
||||
- 1.9.x
|
||||
- 1.10.x
|
||||
- master
|
||||
|
||||
install:
|
||||
- go get github.com/prometheus/client_golang/prometheus
|
||||
- go get google.golang.org/grpc
|
||||
- go get golang.org/x/net/context
|
||||
- go get github.com/stretchr/testify
|
||||
script:
|
||||
- make test
|
||||
|
||||
after_success:
|
||||
- bash <(curl -s https://codecov.io/bash)
|
||||
24
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/CHANGELOG.md
generated
vendored
24
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/CHANGELOG.md
generated
vendored
@@ -1,24 +0,0 @@
|
||||
# Changelog
|
||||
All notable changes to this project will be documented in this file.
|
||||
|
||||
The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
|
||||
and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
|
||||
|
||||
## [Unreleased]
|
||||
|
||||
## [1.2.0](https://github.com/grpc-ecosystem/go-grpc-prometheus/releases/tag/v1.2.0) - 2018-06-04
|
||||
|
||||
### Added
|
||||
|
||||
* Provide metrics object as `prometheus.Collector`, for conventional metric registration.
|
||||
* Support non-default/global Prometheus registry.
|
||||
* Allow configuring counters with `prometheus.CounterOpts`.
|
||||
|
||||
### Changed
|
||||
|
||||
* Remove usage of deprecated `grpc.Code()`.
|
||||
* Remove usage of deprecated `grpc.Errorf` and replace with `status.Errorf`.
|
||||
|
||||
---
|
||||
|
||||
This changelog was started with version `v1.2.0`, for earlier versions refer to the respective [GitHub releases](https://github.com/grpc-ecosystem/go-grpc-prometheus/releases).
|
||||
247
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/README.md
generated
vendored
247
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/README.md
generated
vendored
@@ -1,247 +0,0 @@
|
||||
# Go gRPC Interceptors for Prometheus monitoring
|
||||
|
||||
[](https://travis-ci.org/grpc-ecosystem/go-grpc-prometheus)
|
||||
[](http://goreportcard.com/report/grpc-ecosystem/go-grpc-prometheus)
|
||||
[](https://godoc.org/github.com/grpc-ecosystem/go-grpc-prometheus)
|
||||
[](https://sourcegraph.com/github.com/grpc-ecosystem/go-grpc-prometheus/?badge)
|
||||
[](https://codecov.io/gh/grpc-ecosystem/go-grpc-prometheus)
|
||||
[](LICENSE)
|
||||
|
||||
[Prometheus](https://prometheus.io/) monitoring for your [gRPC Go](https://github.com/grpc/grpc-go) servers and clients.
|
||||
|
||||
A sister implementation for [gRPC Java](https://github.com/grpc/grpc-java) (same metrics, same semantics) is in [grpc-ecosystem/java-grpc-prometheus](https://github.com/grpc-ecosystem/java-grpc-prometheus).
|
||||
|
||||
## Interceptors
|
||||
|
||||
[gRPC Go](https://github.com/grpc/grpc-go) recently acquired support for Interceptors, i.e. middleware that is executed
|
||||
by a gRPC Server before the request is passed onto the user's application logic. It is a perfect way to implement
|
||||
common patterns: auth, logging and... monitoring.
|
||||
|
||||
To use Interceptors in chains, please see [`go-grpc-middleware`](https://github.com/mwitkow/go-grpc-middleware).
|
||||
|
||||
## Usage
|
||||
|
||||
There are two types of interceptors: client-side and server-side. This package provides monitoring Interceptors for both.
|
||||
|
||||
### Server-side
|
||||
|
||||
```go
|
||||
import "github.com/grpc-ecosystem/go-grpc-prometheus"
|
||||
...
|
||||
// Initialize your gRPC server's interceptor.
|
||||
myServer := grpc.NewServer(
|
||||
grpc.StreamInterceptor(grpc_prometheus.StreamServerInterceptor),
|
||||
grpc.UnaryInterceptor(grpc_prometheus.UnaryServerInterceptor),
|
||||
)
|
||||
// Register your gRPC service implementations.
|
||||
myservice.RegisterMyServiceServer(s.server, &myServiceImpl{})
|
||||
// After all your registrations, make sure all of the Prometheus metrics are initialized.
|
||||
grpc_prometheus.Register(myServer)
|
||||
// Register Prometheus metrics handler.
|
||||
http.Handle("/metrics", promhttp.Handler())
|
||||
...
|
||||
```
|
||||
|
||||
### Client-side
|
||||
|
||||
```go
|
||||
import "github.com/grpc-ecosystem/go-grpc-prometheus"
|
||||
...
|
||||
clientConn, err = grpc.Dial(
|
||||
address,
|
||||
grpc.WithUnaryInterceptor(grpc_prometheus.UnaryClientInterceptor),
|
||||
grpc.WithStreamInterceptor(grpc_prometheus.StreamClientInterceptor)
|
||||
)
|
||||
client = pb_testproto.NewTestServiceClient(clientConn)
|
||||
resp, err := client.PingEmpty(s.ctx, &myservice.Request{Msg: "hello"})
|
||||
...
|
||||
```
|
||||
|
||||
# Metrics
|
||||
|
||||
## Labels
|
||||
|
||||
All server-side metrics start with `grpc_server` as Prometheus subsystem name. All client-side metrics start with `grpc_client`. Both of them have mirror-concepts. Similarly all methods
|
||||
contain the same rich labels:
|
||||
|
||||
* `grpc_service` - the [gRPC service](http://www.grpc.io/docs/#defining-a-service) name, which is the combination of protobuf `package` and
|
||||
the `grpc_service` section name. E.g. for `package = mwitkow.testproto` and
|
||||
`service TestService` the label will be `grpc_service="mwitkow.testproto.TestService"`
|
||||
* `grpc_method` - the name of the method called on the gRPC service. E.g.
|
||||
`grpc_method="Ping"`
|
||||
* `grpc_type` - the gRPC [type of request](http://www.grpc.io/docs/guides/concepts.html#rpc-life-cycle).
|
||||
Differentiating between the two is important especially for latency measurements.
|
||||
|
||||
- `unary` is single request, single response RPC
|
||||
- `client_stream` is a multi-request, single response RPC
|
||||
- `server_stream` is a single request, multi-response RPC
|
||||
- `bidi_stream` is a multi-request, multi-response RPC
|
||||
|
||||
|
||||
Additionally for completed RPCs, the following labels are used:
|
||||
|
||||
* `grpc_code` - the human-readable [gRPC status code](https://github.com/grpc/grpc-go/blob/master/codes/codes.go).
|
||||
The list of all statuses is to long, but here are some common ones:
|
||||
|
||||
- `OK` - means the RPC was successful
|
||||
- `IllegalArgument` - RPC contained bad values
|
||||
- `Internal` - server-side error not disclosed to the clients
|
||||
|
||||
## Counters
|
||||
|
||||
The counters and their up to date documentation is in [server_reporter.go](server_reporter.go) and [client_reporter.go](client_reporter.go)
|
||||
the respective Prometheus handler (usually `/metrics`).
|
||||
|
||||
For the purpose of this documentation we will only discuss `grpc_server` metrics. The `grpc_client` ones contain mirror concepts.
|
||||
|
||||
For simplicity, let's assume we're tracking a single server-side RPC call of [`mwitkow.testproto.TestService`](examples/testproto/test.proto),
|
||||
calling the method `PingList`. The call succeeds and returns 20 messages in the stream.
|
||||
|
||||
First, immediately after the server receives the call it will increment the
|
||||
`grpc_server_started_total` and start the handling time clock (if histograms are enabled).
|
||||
|
||||
```jsoniq
|
||||
grpc_server_started_total{grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream"} 1
|
||||
```
|
||||
|
||||
Then the user logic gets invoked. It receives one message from the client containing the request
|
||||
(it's a `server_stream`):
|
||||
|
||||
```jsoniq
|
||||
grpc_server_msg_received_total{grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream"} 1
|
||||
```
|
||||
|
||||
The user logic may return an error, or send multiple messages back to the client. In this case, on
|
||||
each of the 20 messages sent back, a counter will be incremented:
|
||||
|
||||
```jsoniq
|
||||
grpc_server_msg_sent_total{grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream"} 20
|
||||
```
|
||||
|
||||
After the call completes, its status (`OK` or other [gRPC status code](https://github.com/grpc/grpc-go/blob/master/codes/codes.go))
|
||||
and the relevant call labels increment the `grpc_server_handled_total` counter.
|
||||
|
||||
```jsoniq
|
||||
grpc_server_handled_total{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream"} 1
|
||||
```
|
||||
|
||||
## Histograms
|
||||
|
||||
[Prometheus histograms](https://prometheus.io/docs/concepts/metric_types/#histogram) are a great way
|
||||
to measure latency distributions of your RPCs. However, since it is bad practice to have metrics
|
||||
of [high cardinality](https://prometheus.io/docs/practices/instrumentation/#do-not-overuse-labels)
|
||||
the latency monitoring metrics are disabled by default. To enable them please call the following
|
||||
in your server initialization code:
|
||||
|
||||
```jsoniq
|
||||
grpc_prometheus.EnableHandlingTimeHistogram()
|
||||
```
|
||||
|
||||
After the call completes, its handling time will be recorded in a [Prometheus histogram](https://prometheus.io/docs/concepts/metric_types/#histogram)
|
||||
variable `grpc_server_handling_seconds`. The histogram variable contains three sub-metrics:
|
||||
|
||||
* `grpc_server_handling_seconds_count` - the count of all completed RPCs by status and method
|
||||
* `grpc_server_handling_seconds_sum` - cumulative time of RPCs by status and method, useful for
|
||||
calculating average handling times
|
||||
* `grpc_server_handling_seconds_bucket` - contains the counts of RPCs by status and method in respective
|
||||
handling-time buckets. These buckets can be used by Prometheus to estimate SLAs (see [here](https://prometheus.io/docs/practices/histograms/))
|
||||
|
||||
The counter values will look as follows:
|
||||
|
||||
```jsoniq
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="0.005"} 1
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="0.01"} 1
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="0.025"} 1
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="0.05"} 1
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="0.1"} 1
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="0.25"} 1
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="0.5"} 1
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="1"} 1
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="2.5"} 1
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="5"} 1
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="10"} 1
|
||||
grpc_server_handling_seconds_bucket{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream",le="+Inf"} 1
|
||||
grpc_server_handling_seconds_sum{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream"} 0.0003866430000000001
|
||||
grpc_server_handling_seconds_count{grpc_code="OK",grpc_method="PingList",grpc_service="mwitkow.testproto.TestService",grpc_type="server_stream"} 1
|
||||
```
|
||||
|
||||
|
||||
## Useful query examples
|
||||
|
||||
Prometheus philosophy is to provide raw metrics to the monitoring system, and
|
||||
let the aggregations be handled there. The verbosity of above metrics make it possible to have that
|
||||
flexibility. Here's a couple of useful monitoring queries:
|
||||
|
||||
|
||||
### request inbound rate
|
||||
```jsoniq
|
||||
sum(rate(grpc_server_started_total{job="foo"}[1m])) by (grpc_service)
|
||||
```
|
||||
For `job="foo"` (common label to differentiate between Prometheus monitoring targets), calculate the
|
||||
rate of requests per second (1 minute window) for each gRPC `grpc_service` that the job has. Please note
|
||||
how the `grpc_method` is being omitted here: all methods of a given gRPC service will be summed together.
|
||||
|
||||
### unary request error rate
|
||||
```jsoniq
|
||||
sum(rate(grpc_server_handled_total{job="foo",grpc_type="unary",grpc_code!="OK"}[1m])) by (grpc_service)
|
||||
```
|
||||
For `job="foo"`, calculate the per-`grpc_service` rate of `unary` (1:1) RPCs that failed, i.e. the
|
||||
ones that didn't finish with `OK` code.
|
||||
|
||||
### unary request error percentage
|
||||
```jsoniq
|
||||
sum(rate(grpc_server_handled_total{job="foo",grpc_type="unary",grpc_code!="OK"}[1m])) by (grpc_service)
|
||||
/
|
||||
sum(rate(grpc_server_started_total{job="foo",grpc_type="unary"}[1m])) by (grpc_service)
|
||||
* 100.0
|
||||
```
|
||||
For `job="foo"`, calculate the percentage of failed requests by service. It's easy to notice that
|
||||
this is a combination of the two above examples. This is an example of a query you would like to
|
||||
[alert on](https://prometheus.io/docs/alerting/rules/) in your system for SLA violations, e.g.
|
||||
"no more than 1% requests should fail".
|
||||
|
||||
### average response stream size
|
||||
```jsoniq
|
||||
sum(rate(grpc_server_msg_sent_total{job="foo",grpc_type="server_stream"}[10m])) by (grpc_service)
|
||||
/
|
||||
sum(rate(grpc_server_started_total{job="foo",grpc_type="server_stream"}[10m])) by (grpc_service)
|
||||
```
|
||||
For `job="foo"` what is the `grpc_service`-wide `10m` average of messages returned for all `
|
||||
server_stream` RPCs. This allows you to track the stream sizes returned by your system, e.g. allows
|
||||
you to track when clients started to send "wide" queries that ret
|
||||
Note the divisor is the number of started RPCs, in order to account for in-flight requests.
|
||||
|
||||
### 99%-tile latency of unary requests
|
||||
```jsoniq
|
||||
histogram_quantile(0.99,
|
||||
sum(rate(grpc_server_handling_seconds_bucket{job="foo",grpc_type="unary"}[5m])) by (grpc_service,le)
|
||||
)
|
||||
```
|
||||
For `job="foo"`, returns an 99%-tile [quantile estimation](https://prometheus.io/docs/practices/histograms/#quantiles)
|
||||
of the handling time of RPCs per service. Please note the `5m` rate, this means that the quantile
|
||||
estimation will take samples in a rolling `5m` window. When combined with other quantiles
|
||||
(e.g. 50%, 90%), this query gives you tremendous insight into the responsiveness of your system
|
||||
(e.g. impact of caching).
|
||||
|
||||
### percentage of slow unary queries (>250ms)
|
||||
```jsoniq
|
||||
100.0 - (
|
||||
sum(rate(grpc_server_handling_seconds_bucket{job="foo",grpc_type="unary",le="0.25"}[5m])) by (grpc_service)
|
||||
/
|
||||
sum(rate(grpc_server_handling_seconds_count{job="foo",grpc_type="unary"}[5m])) by (grpc_service)
|
||||
) * 100.0
|
||||
```
|
||||
For `job="foo"` calculate the by-`grpc_service` fraction of slow requests that took longer than `0.25`
|
||||
seconds. This query is relatively complex, since the Prometheus aggregations use `le` (less or equal)
|
||||
buckets, meaning that counting "fast" requests fractions is easier. However, simple maths helps.
|
||||
This is an example of a query you would like to alert on in your system for SLA violations,
|
||||
e.g. "less than 1% of requests are slower than 250ms".
|
||||
|
||||
|
||||
## Status
|
||||
|
||||
This code has been used since August 2015 as the basis for monitoring of *production* gRPC micro services at [Improbable](https://improbable.io).
|
||||
|
||||
## License
|
||||
|
||||
`go-grpc-prometheus` is released under the Apache 2.0 license. See the [LICENSE](LICENSE) file for details.
|
||||
39
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/client.go
generated
vendored
39
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/client.go
generated
vendored
@@ -1,39 +0,0 @@
|
||||
// Copyright 2016 Michal Witkowski. All Rights Reserved.
|
||||
// See LICENSE for licensing terms.
|
||||
|
||||
// gRPC Prometheus monitoring interceptors for client-side gRPC.
|
||||
|
||||
package grpc_prometheus
|
||||
|
||||
import (
|
||||
prom "github.com/prometheus/client_golang/prometheus"
|
||||
)
|
||||
|
||||
var (
|
||||
// DefaultClientMetrics is the default instance of ClientMetrics. It is
|
||||
// intended to be used in conjunction the default Prometheus metrics
|
||||
// registry.
|
||||
DefaultClientMetrics = NewClientMetrics()
|
||||
|
||||
// UnaryClientInterceptor is a gRPC client-side interceptor that provides Prometheus monitoring for Unary RPCs.
|
||||
UnaryClientInterceptor = DefaultClientMetrics.UnaryClientInterceptor()
|
||||
|
||||
// StreamClientInterceptor is a gRPC client-side interceptor that provides Prometheus monitoring for Streaming RPCs.
|
||||
StreamClientInterceptor = DefaultClientMetrics.StreamClientInterceptor()
|
||||
)
|
||||
|
||||
func init() {
|
||||
prom.MustRegister(DefaultClientMetrics.clientStartedCounter)
|
||||
prom.MustRegister(DefaultClientMetrics.clientHandledCounter)
|
||||
prom.MustRegister(DefaultClientMetrics.clientStreamMsgReceived)
|
||||
prom.MustRegister(DefaultClientMetrics.clientStreamMsgSent)
|
||||
}
|
||||
|
||||
// EnableClientHandlingTimeHistogram turns on recording of handling time of
|
||||
// RPCs. Histogram metrics can be very expensive for Prometheus to retain and
|
||||
// query. This function acts on the DefaultClientMetrics variable and the
|
||||
// default Prometheus metrics registry.
|
||||
func EnableClientHandlingTimeHistogram(opts ...HistogramOption) {
|
||||
DefaultClientMetrics.EnableClientHandlingTimeHistogram(opts...)
|
||||
prom.Register(DefaultClientMetrics.clientHandledHistogram)
|
||||
}
|
||||
170
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/client_metrics.go
generated
vendored
170
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/client_metrics.go
generated
vendored
@@ -1,170 +0,0 @@
|
||||
package grpc_prometheus
|
||||
|
||||
import (
|
||||
"io"
|
||||
|
||||
prom "github.com/prometheus/client_golang/prometheus"
|
||||
"golang.org/x/net/context"
|
||||
"google.golang.org/grpc"
|
||||
"google.golang.org/grpc/codes"
|
||||
"google.golang.org/grpc/status"
|
||||
)
|
||||
|
||||
// ClientMetrics represents a collection of metrics to be registered on a
|
||||
// Prometheus metrics registry for a gRPC client.
|
||||
type ClientMetrics struct {
|
||||
clientStartedCounter *prom.CounterVec
|
||||
clientHandledCounter *prom.CounterVec
|
||||
clientStreamMsgReceived *prom.CounterVec
|
||||
clientStreamMsgSent *prom.CounterVec
|
||||
clientHandledHistogramEnabled bool
|
||||
clientHandledHistogramOpts prom.HistogramOpts
|
||||
clientHandledHistogram *prom.HistogramVec
|
||||
}
|
||||
|
||||
// NewClientMetrics returns a ClientMetrics object. Use a new instance of
|
||||
// ClientMetrics when not using the default Prometheus metrics registry, for
|
||||
// example when wanting to control which metrics are added to a registry as
|
||||
// opposed to automatically adding metrics via init functions.
|
||||
func NewClientMetrics(counterOpts ...CounterOption) *ClientMetrics {
|
||||
opts := counterOptions(counterOpts)
|
||||
return &ClientMetrics{
|
||||
clientStartedCounter: prom.NewCounterVec(
|
||||
opts.apply(prom.CounterOpts{
|
||||
Name: "grpc_client_started_total",
|
||||
Help: "Total number of RPCs started on the client.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
|
||||
clientHandledCounter: prom.NewCounterVec(
|
||||
opts.apply(prom.CounterOpts{
|
||||
Name: "grpc_client_handled_total",
|
||||
Help: "Total number of RPCs completed by the client, regardless of success or failure.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method", "grpc_code"}),
|
||||
|
||||
clientStreamMsgReceived: prom.NewCounterVec(
|
||||
opts.apply(prom.CounterOpts{
|
||||
Name: "grpc_client_msg_received_total",
|
||||
Help: "Total number of RPC stream messages received by the client.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
|
||||
clientStreamMsgSent: prom.NewCounterVec(
|
||||
opts.apply(prom.CounterOpts{
|
||||
Name: "grpc_client_msg_sent_total",
|
||||
Help: "Total number of gRPC stream messages sent by the client.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
|
||||
clientHandledHistogramEnabled: false,
|
||||
clientHandledHistogramOpts: prom.HistogramOpts{
|
||||
Name: "grpc_client_handling_seconds",
|
||||
Help: "Histogram of response latency (seconds) of the gRPC until it is finished by the application.",
|
||||
Buckets: prom.DefBuckets,
|
||||
},
|
||||
clientHandledHistogram: nil,
|
||||
}
|
||||
}
|
||||
|
||||
// Describe sends the super-set of all possible descriptors of metrics
|
||||
// collected by this Collector to the provided channel and returns once
|
||||
// the last descriptor has been sent.
|
||||
func (m *ClientMetrics) Describe(ch chan<- *prom.Desc) {
|
||||
m.clientStartedCounter.Describe(ch)
|
||||
m.clientHandledCounter.Describe(ch)
|
||||
m.clientStreamMsgReceived.Describe(ch)
|
||||
m.clientStreamMsgSent.Describe(ch)
|
||||
if m.clientHandledHistogramEnabled {
|
||||
m.clientHandledHistogram.Describe(ch)
|
||||
}
|
||||
}
|
||||
|
||||
// Collect is called by the Prometheus registry when collecting
|
||||
// metrics. The implementation sends each collected metric via the
|
||||
// provided channel and returns once the last metric has been sent.
|
||||
func (m *ClientMetrics) Collect(ch chan<- prom.Metric) {
|
||||
m.clientStartedCounter.Collect(ch)
|
||||
m.clientHandledCounter.Collect(ch)
|
||||
m.clientStreamMsgReceived.Collect(ch)
|
||||
m.clientStreamMsgSent.Collect(ch)
|
||||
if m.clientHandledHistogramEnabled {
|
||||
m.clientHandledHistogram.Collect(ch)
|
||||
}
|
||||
}
|
||||
|
||||
// EnableClientHandlingTimeHistogram turns on recording of handling time of RPCs.
|
||||
// Histogram metrics can be very expensive for Prometheus to retain and query.
|
||||
func (m *ClientMetrics) EnableClientHandlingTimeHistogram(opts ...HistogramOption) {
|
||||
for _, o := range opts {
|
||||
o(&m.clientHandledHistogramOpts)
|
||||
}
|
||||
if !m.clientHandledHistogramEnabled {
|
||||
m.clientHandledHistogram = prom.NewHistogramVec(
|
||||
m.clientHandledHistogramOpts,
|
||||
[]string{"grpc_type", "grpc_service", "grpc_method"},
|
||||
)
|
||||
}
|
||||
m.clientHandledHistogramEnabled = true
|
||||
}
|
||||
|
||||
// UnaryClientInterceptor is a gRPC client-side interceptor that provides Prometheus monitoring for Unary RPCs.
|
||||
func (m *ClientMetrics) UnaryClientInterceptor() func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
|
||||
return func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
|
||||
monitor := newClientReporter(m, Unary, method)
|
||||
monitor.SentMessage()
|
||||
err := invoker(ctx, method, req, reply, cc, opts...)
|
||||
if err != nil {
|
||||
monitor.ReceivedMessage()
|
||||
}
|
||||
st, _ := status.FromError(err)
|
||||
monitor.Handled(st.Code())
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// StreamClientInterceptor is a gRPC client-side interceptor that provides Prometheus monitoring for Streaming RPCs.
|
||||
func (m *ClientMetrics) StreamClientInterceptor() func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
|
||||
return func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
|
||||
monitor := newClientReporter(m, clientStreamType(desc), method)
|
||||
clientStream, err := streamer(ctx, desc, cc, method, opts...)
|
||||
if err != nil {
|
||||
st, _ := status.FromError(err)
|
||||
monitor.Handled(st.Code())
|
||||
return nil, err
|
||||
}
|
||||
return &monitoredClientStream{clientStream, monitor}, nil
|
||||
}
|
||||
}
|
||||
|
||||
func clientStreamType(desc *grpc.StreamDesc) grpcType {
|
||||
if desc.ClientStreams && !desc.ServerStreams {
|
||||
return ClientStream
|
||||
} else if !desc.ClientStreams && desc.ServerStreams {
|
||||
return ServerStream
|
||||
}
|
||||
return BidiStream
|
||||
}
|
||||
|
||||
// monitoredClientStream wraps grpc.ClientStream allowing each Sent/Recv of message to increment counters.
|
||||
type monitoredClientStream struct {
|
||||
grpc.ClientStream
|
||||
monitor *clientReporter
|
||||
}
|
||||
|
||||
func (s *monitoredClientStream) SendMsg(m interface{}) error {
|
||||
err := s.ClientStream.SendMsg(m)
|
||||
if err == nil {
|
||||
s.monitor.SentMessage()
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
func (s *monitoredClientStream) RecvMsg(m interface{}) error {
|
||||
err := s.ClientStream.RecvMsg(m)
|
||||
if err == nil {
|
||||
s.monitor.ReceivedMessage()
|
||||
} else if err == io.EOF {
|
||||
s.monitor.Handled(codes.OK)
|
||||
} else {
|
||||
st, _ := status.FromError(err)
|
||||
s.monitor.Handled(st.Code())
|
||||
}
|
||||
return err
|
||||
}
|
||||
46
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/client_reporter.go
generated
vendored
46
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/client_reporter.go
generated
vendored
@@ -1,46 +0,0 @@
|
||||
// Copyright 2016 Michal Witkowski. All Rights Reserved.
|
||||
// See LICENSE for licensing terms.
|
||||
|
||||
package grpc_prometheus
|
||||
|
||||
import (
|
||||
"time"
|
||||
|
||||
"google.golang.org/grpc/codes"
|
||||
)
|
||||
|
||||
type clientReporter struct {
|
||||
metrics *ClientMetrics
|
||||
rpcType grpcType
|
||||
serviceName string
|
||||
methodName string
|
||||
startTime time.Time
|
||||
}
|
||||
|
||||
func newClientReporter(m *ClientMetrics, rpcType grpcType, fullMethod string) *clientReporter {
|
||||
r := &clientReporter{
|
||||
metrics: m,
|
||||
rpcType: rpcType,
|
||||
}
|
||||
if r.metrics.clientHandledHistogramEnabled {
|
||||
r.startTime = time.Now()
|
||||
}
|
||||
r.serviceName, r.methodName = splitMethodName(fullMethod)
|
||||
r.metrics.clientStartedCounter.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Inc()
|
||||
return r
|
||||
}
|
||||
|
||||
func (r *clientReporter) ReceivedMessage() {
|
||||
r.metrics.clientStreamMsgReceived.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Inc()
|
||||
}
|
||||
|
||||
func (r *clientReporter) SentMessage() {
|
||||
r.metrics.clientStreamMsgSent.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Inc()
|
||||
}
|
||||
|
||||
func (r *clientReporter) Handled(code codes.Code) {
|
||||
r.metrics.clientHandledCounter.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName, code.String()).Inc()
|
||||
if r.metrics.clientHandledHistogramEnabled {
|
||||
r.metrics.clientHandledHistogram.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Observe(time.Since(r.startTime).Seconds())
|
||||
}
|
||||
}
|
||||
16
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/makefile
generated
vendored
16
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/makefile
generated
vendored
@@ -1,16 +0,0 @@
|
||||
SHELL="/bin/bash"
|
||||
|
||||
GOFILES_NOVENDOR = $(shell go list ./... | grep -v /vendor/)
|
||||
|
||||
all: vet fmt test
|
||||
|
||||
fmt:
|
||||
go fmt $(GOFILES_NOVENDOR)
|
||||
|
||||
vet:
|
||||
go vet $(GOFILES_NOVENDOR)
|
||||
|
||||
test: vet
|
||||
./scripts/test_all.sh
|
||||
|
||||
.PHONY: all vet test
|
||||
41
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/metric_options.go
generated
vendored
41
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/metric_options.go
generated
vendored
@@ -1,41 +0,0 @@
|
||||
package grpc_prometheus
|
||||
|
||||
import (
|
||||
prom "github.com/prometheus/client_golang/prometheus"
|
||||
)
|
||||
|
||||
// A CounterOption lets you add options to Counter metrics using With* funcs.
|
||||
type CounterOption func(*prom.CounterOpts)
|
||||
|
||||
type counterOptions []CounterOption
|
||||
|
||||
func (co counterOptions) apply(o prom.CounterOpts) prom.CounterOpts {
|
||||
for _, f := range co {
|
||||
f(&o)
|
||||
}
|
||||
return o
|
||||
}
|
||||
|
||||
// WithConstLabels allows you to add ConstLabels to Counter metrics.
|
||||
func WithConstLabels(labels prom.Labels) CounterOption {
|
||||
return func(o *prom.CounterOpts) {
|
||||
o.ConstLabels = labels
|
||||
}
|
||||
}
|
||||
|
||||
// A HistogramOption lets you add options to Histogram metrics using With*
|
||||
// funcs.
|
||||
type HistogramOption func(*prom.HistogramOpts)
|
||||
|
||||
// WithHistogramBuckets allows you to specify custom bucket ranges for histograms if EnableHandlingTimeHistogram is on.
|
||||
func WithHistogramBuckets(buckets []float64) HistogramOption {
|
||||
return func(o *prom.HistogramOpts) { o.Buckets = buckets }
|
||||
}
|
||||
|
||||
// WithHistogramConstLabels allows you to add custom ConstLabels to
|
||||
// histograms metrics.
|
||||
func WithHistogramConstLabels(labels prom.Labels) HistogramOption {
|
||||
return func(o *prom.HistogramOpts) {
|
||||
o.ConstLabels = labels
|
||||
}
|
||||
}
|
||||
48
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/server.go
generated
vendored
48
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/server.go
generated
vendored
@@ -1,48 +0,0 @@
|
||||
// Copyright 2016 Michal Witkowski. All Rights Reserved.
|
||||
// See LICENSE for licensing terms.
|
||||
|
||||
// gRPC Prometheus monitoring interceptors for server-side gRPC.
|
||||
|
||||
package grpc_prometheus
|
||||
|
||||
import (
|
||||
prom "github.com/prometheus/client_golang/prometheus"
|
||||
"google.golang.org/grpc"
|
||||
)
|
||||
|
||||
var (
|
||||
// DefaultServerMetrics is the default instance of ServerMetrics. It is
|
||||
// intended to be used in conjunction the default Prometheus metrics
|
||||
// registry.
|
||||
DefaultServerMetrics = NewServerMetrics()
|
||||
|
||||
// UnaryServerInterceptor is a gRPC server-side interceptor that provides Prometheus monitoring for Unary RPCs.
|
||||
UnaryServerInterceptor = DefaultServerMetrics.UnaryServerInterceptor()
|
||||
|
||||
// StreamServerInterceptor is a gRPC server-side interceptor that provides Prometheus monitoring for Streaming RPCs.
|
||||
StreamServerInterceptor = DefaultServerMetrics.StreamServerInterceptor()
|
||||
)
|
||||
|
||||
func init() {
|
||||
prom.MustRegister(DefaultServerMetrics.serverStartedCounter)
|
||||
prom.MustRegister(DefaultServerMetrics.serverHandledCounter)
|
||||
prom.MustRegister(DefaultServerMetrics.serverStreamMsgReceived)
|
||||
prom.MustRegister(DefaultServerMetrics.serverStreamMsgSent)
|
||||
}
|
||||
|
||||
// Register takes a gRPC server and pre-initializes all counters to 0. This
|
||||
// allows for easier monitoring in Prometheus (no missing metrics), and should
|
||||
// be called *after* all services have been registered with the server. This
|
||||
// function acts on the DefaultServerMetrics variable.
|
||||
func Register(server *grpc.Server) {
|
||||
DefaultServerMetrics.InitializeMetrics(server)
|
||||
}
|
||||
|
||||
// EnableHandlingTimeHistogram turns on recording of handling time
|
||||
// of RPCs. Histogram metrics can be very expensive for Prometheus
|
||||
// to retain and query. This function acts on the DefaultServerMetrics
|
||||
// variable and the default Prometheus metrics registry.
|
||||
func EnableHandlingTimeHistogram(opts ...HistogramOption) {
|
||||
DefaultServerMetrics.EnableHandlingTimeHistogram(opts...)
|
||||
prom.Register(DefaultServerMetrics.serverHandledHistogram)
|
||||
}
|
||||
185
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/server_metrics.go
generated
vendored
185
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/server_metrics.go
generated
vendored
@@ -1,185 +0,0 @@
|
||||
package grpc_prometheus
|
||||
|
||||
import (
|
||||
prom "github.com/prometheus/client_golang/prometheus"
|
||||
"golang.org/x/net/context"
|
||||
"google.golang.org/grpc"
|
||||
"google.golang.org/grpc/status"
|
||||
)
|
||||
|
||||
// ServerMetrics represents a collection of metrics to be registered on a
|
||||
// Prometheus metrics registry for a gRPC server.
|
||||
type ServerMetrics struct {
|
||||
serverStartedCounter *prom.CounterVec
|
||||
serverHandledCounter *prom.CounterVec
|
||||
serverStreamMsgReceived *prom.CounterVec
|
||||
serverStreamMsgSent *prom.CounterVec
|
||||
serverHandledHistogramEnabled bool
|
||||
serverHandledHistogramOpts prom.HistogramOpts
|
||||
serverHandledHistogram *prom.HistogramVec
|
||||
}
|
||||
|
||||
// NewServerMetrics returns a ServerMetrics object. Use a new instance of
|
||||
// ServerMetrics when not using the default Prometheus metrics registry, for
|
||||
// example when wanting to control which metrics are added to a registry as
|
||||
// opposed to automatically adding metrics via init functions.
|
||||
func NewServerMetrics(counterOpts ...CounterOption) *ServerMetrics {
|
||||
opts := counterOptions(counterOpts)
|
||||
return &ServerMetrics{
|
||||
serverStartedCounter: prom.NewCounterVec(
|
||||
opts.apply(prom.CounterOpts{
|
||||
Name: "grpc_server_started_total",
|
||||
Help: "Total number of RPCs started on the server.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
serverHandledCounter: prom.NewCounterVec(
|
||||
opts.apply(prom.CounterOpts{
|
||||
Name: "grpc_server_handled_total",
|
||||
Help: "Total number of RPCs completed on the server, regardless of success or failure.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method", "grpc_code"}),
|
||||
serverStreamMsgReceived: prom.NewCounterVec(
|
||||
opts.apply(prom.CounterOpts{
|
||||
Name: "grpc_server_msg_received_total",
|
||||
Help: "Total number of RPC stream messages received on the server.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
serverStreamMsgSent: prom.NewCounterVec(
|
||||
opts.apply(prom.CounterOpts{
|
||||
Name: "grpc_server_msg_sent_total",
|
||||
Help: "Total number of gRPC stream messages sent by the server.",
|
||||
}), []string{"grpc_type", "grpc_service", "grpc_method"}),
|
||||
serverHandledHistogramEnabled: false,
|
||||
serverHandledHistogramOpts: prom.HistogramOpts{
|
||||
Name: "grpc_server_handling_seconds",
|
||||
Help: "Histogram of response latency (seconds) of gRPC that had been application-level handled by the server.",
|
||||
Buckets: prom.DefBuckets,
|
||||
},
|
||||
serverHandledHistogram: nil,
|
||||
}
|
||||
}
|
||||
|
||||
// EnableHandlingTimeHistogram enables histograms being registered when
|
||||
// registering the ServerMetrics on a Prometheus registry. Histograms can be
|
||||
// expensive on Prometheus servers. It takes options to configure histogram
|
||||
// options such as the defined buckets.
|
||||
func (m *ServerMetrics) EnableHandlingTimeHistogram(opts ...HistogramOption) {
|
||||
for _, o := range opts {
|
||||
o(&m.serverHandledHistogramOpts)
|
||||
}
|
||||
if !m.serverHandledHistogramEnabled {
|
||||
m.serverHandledHistogram = prom.NewHistogramVec(
|
||||
m.serverHandledHistogramOpts,
|
||||
[]string{"grpc_type", "grpc_service", "grpc_method"},
|
||||
)
|
||||
}
|
||||
m.serverHandledHistogramEnabled = true
|
||||
}
|
||||
|
||||
// Describe sends the super-set of all possible descriptors of metrics
|
||||
// collected by this Collector to the provided channel and returns once
|
||||
// the last descriptor has been sent.
|
||||
func (m *ServerMetrics) Describe(ch chan<- *prom.Desc) {
|
||||
m.serverStartedCounter.Describe(ch)
|
||||
m.serverHandledCounter.Describe(ch)
|
||||
m.serverStreamMsgReceived.Describe(ch)
|
||||
m.serverStreamMsgSent.Describe(ch)
|
||||
if m.serverHandledHistogramEnabled {
|
||||
m.serverHandledHistogram.Describe(ch)
|
||||
}
|
||||
}
|
||||
|
||||
// Collect is called by the Prometheus registry when collecting
|
||||
// metrics. The implementation sends each collected metric via the
|
||||
// provided channel and returns once the last metric has been sent.
|
||||
func (m *ServerMetrics) Collect(ch chan<- prom.Metric) {
|
||||
m.serverStartedCounter.Collect(ch)
|
||||
m.serverHandledCounter.Collect(ch)
|
||||
m.serverStreamMsgReceived.Collect(ch)
|
||||
m.serverStreamMsgSent.Collect(ch)
|
||||
if m.serverHandledHistogramEnabled {
|
||||
m.serverHandledHistogram.Collect(ch)
|
||||
}
|
||||
}
|
||||
|
||||
// UnaryServerInterceptor is a gRPC server-side interceptor that provides Prometheus monitoring for Unary RPCs.
|
||||
func (m *ServerMetrics) UnaryServerInterceptor() func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
|
||||
return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
|
||||
monitor := newServerReporter(m, Unary, info.FullMethod)
|
||||
monitor.ReceivedMessage()
|
||||
resp, err := handler(ctx, req)
|
||||
st, _ := status.FromError(err)
|
||||
monitor.Handled(st.Code())
|
||||
if err == nil {
|
||||
monitor.SentMessage()
|
||||
}
|
||||
return resp, err
|
||||
}
|
||||
}
|
||||
|
||||
// StreamServerInterceptor is a gRPC server-side interceptor that provides Prometheus monitoring for Streaming RPCs.
|
||||
func (m *ServerMetrics) StreamServerInterceptor() func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
|
||||
return func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
|
||||
monitor := newServerReporter(m, streamRPCType(info), info.FullMethod)
|
||||
err := handler(srv, &monitoredServerStream{ss, monitor})
|
||||
st, _ := status.FromError(err)
|
||||
monitor.Handled(st.Code())
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// InitializeMetrics initializes all metrics, with their appropriate null
|
||||
// value, for all gRPC methods registered on a gRPC server. This is useful, to
|
||||
// ensure that all metrics exist when collecting and querying.
|
||||
func (m *ServerMetrics) InitializeMetrics(server *grpc.Server) {
|
||||
serviceInfo := server.GetServiceInfo()
|
||||
for serviceName, info := range serviceInfo {
|
||||
for _, mInfo := range info.Methods {
|
||||
preRegisterMethod(m, serviceName, &mInfo)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func streamRPCType(info *grpc.StreamServerInfo) grpcType {
|
||||
if info.IsClientStream && !info.IsServerStream {
|
||||
return ClientStream
|
||||
} else if !info.IsClientStream && info.IsServerStream {
|
||||
return ServerStream
|
||||
}
|
||||
return BidiStream
|
||||
}
|
||||
|
||||
// monitoredStream wraps grpc.ServerStream allowing each Sent/Recv of message to increment counters.
|
||||
type monitoredServerStream struct {
|
||||
grpc.ServerStream
|
||||
monitor *serverReporter
|
||||
}
|
||||
|
||||
func (s *monitoredServerStream) SendMsg(m interface{}) error {
|
||||
err := s.ServerStream.SendMsg(m)
|
||||
if err == nil {
|
||||
s.monitor.SentMessage()
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
func (s *monitoredServerStream) RecvMsg(m interface{}) error {
|
||||
err := s.ServerStream.RecvMsg(m)
|
||||
if err == nil {
|
||||
s.monitor.ReceivedMessage()
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
// preRegisterMethod is invoked on Register of a Server, allowing all gRPC services labels to be pre-populated.
|
||||
func preRegisterMethod(metrics *ServerMetrics, serviceName string, mInfo *grpc.MethodInfo) {
|
||||
methodName := mInfo.Name
|
||||
methodType := string(typeFromMethodInfo(mInfo))
|
||||
// These are just references (no increments), as just referencing will create the labels but not set values.
|
||||
metrics.serverStartedCounter.GetMetricWithLabelValues(methodType, serviceName, methodName)
|
||||
metrics.serverStreamMsgReceived.GetMetricWithLabelValues(methodType, serviceName, methodName)
|
||||
metrics.serverStreamMsgSent.GetMetricWithLabelValues(methodType, serviceName, methodName)
|
||||
if metrics.serverHandledHistogramEnabled {
|
||||
metrics.serverHandledHistogram.GetMetricWithLabelValues(methodType, serviceName, methodName)
|
||||
}
|
||||
for _, code := range allCodes {
|
||||
metrics.serverHandledCounter.GetMetricWithLabelValues(methodType, serviceName, methodName, code.String())
|
||||
}
|
||||
}
|
||||
46
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/server_reporter.go
generated
vendored
46
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/server_reporter.go
generated
vendored
@@ -1,46 +0,0 @@
|
||||
// Copyright 2016 Michal Witkowski. All Rights Reserved.
|
||||
// See LICENSE for licensing terms.
|
||||
|
||||
package grpc_prometheus
|
||||
|
||||
import (
|
||||
"time"
|
||||
|
||||
"google.golang.org/grpc/codes"
|
||||
)
|
||||
|
||||
type serverReporter struct {
|
||||
metrics *ServerMetrics
|
||||
rpcType grpcType
|
||||
serviceName string
|
||||
methodName string
|
||||
startTime time.Time
|
||||
}
|
||||
|
||||
func newServerReporter(m *ServerMetrics, rpcType grpcType, fullMethod string) *serverReporter {
|
||||
r := &serverReporter{
|
||||
metrics: m,
|
||||
rpcType: rpcType,
|
||||
}
|
||||
if r.metrics.serverHandledHistogramEnabled {
|
||||
r.startTime = time.Now()
|
||||
}
|
||||
r.serviceName, r.methodName = splitMethodName(fullMethod)
|
||||
r.metrics.serverStartedCounter.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Inc()
|
||||
return r
|
||||
}
|
||||
|
||||
func (r *serverReporter) ReceivedMessage() {
|
||||
r.metrics.serverStreamMsgReceived.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Inc()
|
||||
}
|
||||
|
||||
func (r *serverReporter) SentMessage() {
|
||||
r.metrics.serverStreamMsgSent.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Inc()
|
||||
}
|
||||
|
||||
func (r *serverReporter) Handled(code codes.Code) {
|
||||
r.metrics.serverHandledCounter.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName, code.String()).Inc()
|
||||
if r.metrics.serverHandledHistogramEnabled {
|
||||
r.metrics.serverHandledHistogram.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Observe(time.Since(r.startTime).Seconds())
|
||||
}
|
||||
}
|
||||
50
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/util.go
generated
vendored
50
vendor/github.com/grpc-ecosystem/go-grpc-prometheus/util.go
generated
vendored
@@ -1,50 +0,0 @@
|
||||
// Copyright 2016 Michal Witkowski. All Rights Reserved.
|
||||
// See LICENSE for licensing terms.
|
||||
|
||||
package grpc_prometheus
|
||||
|
||||
import (
|
||||
"strings"
|
||||
|
||||
"google.golang.org/grpc"
|
||||
"google.golang.org/grpc/codes"
|
||||
)
|
||||
|
||||
type grpcType string
|
||||
|
||||
const (
|
||||
Unary grpcType = "unary"
|
||||
ClientStream grpcType = "client_stream"
|
||||
ServerStream grpcType = "server_stream"
|
||||
BidiStream grpcType = "bidi_stream"
|
||||
)
|
||||
|
||||
var (
|
||||
allCodes = []codes.Code{
|
||||
codes.OK, codes.Canceled, codes.Unknown, codes.InvalidArgument, codes.DeadlineExceeded, codes.NotFound,
|
||||
codes.AlreadyExists, codes.PermissionDenied, codes.Unauthenticated, codes.ResourceExhausted,
|
||||
codes.FailedPrecondition, codes.Aborted, codes.OutOfRange, codes.Unimplemented, codes.Internal,
|
||||
codes.Unavailable, codes.DataLoss,
|
||||
}
|
||||
)
|
||||
|
||||
func splitMethodName(fullMethodName string) (string, string) {
|
||||
fullMethodName = strings.TrimPrefix(fullMethodName, "/") // remove leading slash
|
||||
if i := strings.Index(fullMethodName, "/"); i >= 0 {
|
||||
return fullMethodName[:i], fullMethodName[i+1:]
|
||||
}
|
||||
return "unknown", "unknown"
|
||||
}
|
||||
|
||||
func typeFromMethodInfo(mInfo *grpc.MethodInfo) grpcType {
|
||||
if !mInfo.IsClientStream && !mInfo.IsServerStream {
|
||||
return Unary
|
||||
}
|
||||
if mInfo.IsClientStream && !mInfo.IsServerStream {
|
||||
return ClientStream
|
||||
}
|
||||
if !mInfo.IsClientStream && mInfo.IsServerStream {
|
||||
return ServerStream
|
||||
}
|
||||
return BidiStream
|
||||
}
|
||||
Reference in New Issue
Block a user