0f4d0660a7
Thanks to support for multi-line string values we can now also convert
these remaining klog.Info calls without making the output unreadable
in text format.
The debug log messages intentionally don't get changed to ensure that
developers looking for it still find it.
The output now looks like this:
I0322 11:44:46.715093 458409 configfile.go:96] "Using component config" config=<
apiVersion: kubescheduler.config.k8s.io/v1beta2
clientConnection:
acceptContentTypes: ""
burst: 100
contentType: application/vnd.kubernetes.protobuf
kubeconfig: /var/run/kubernetes/scheduler.kubeconfig
qps: 50
enableContentionProfiling: true
...
schedulerName: default-scheduler
>
I0322 11:45:08.695649 458409 comparer.go:42] "Cache comparer started"
I0322 11:45:08.695718 458409 comparer.go:67] "Cache comparer finished"
I0322 11:45:08.695820 458409 dumper.go:52] "Dump of cached NodeInfo" nodes=<
Node name: 127.0.0.1
Deleted: false
Requested Resources: &{MilliCPU:0 Memory:0 EphemeralStorage:0 AllowedPodNumber:0 ScalarResources:map[]}
Allocatable Resources:&{MilliCPU:36000 Memory:67019448320 EphemeralStorage:181555660500 AllowedPodNumber:110 ScalarResources:map[hugepages-1Gi:0 hugepages-2Mi:0]}
Scheduled Pods(number: 0):
>
I0322 11:45:08.695873 458409 dumper.go:62] "Dump of scheduling queue" pods=<
name: coredns-6874cd75d4-fv6hv, namespace: kube-system, uid: f1df106f-7fd9-460d-8403-333df61b2751, phase: Pending, nominated node:
>
89 lines
3.0 KiB
Go
89 lines
3.0 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package debugger
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
"k8s.io/klog/v2"
|
|
|
|
"k8s.io/api/core/v1"
|
|
"k8s.io/kubernetes/pkg/scheduler/framework"
|
|
internalcache "k8s.io/kubernetes/pkg/scheduler/internal/cache"
|
|
"k8s.io/kubernetes/pkg/scheduler/internal/queue"
|
|
)
|
|
|
|
// CacheDumper writes some information from the scheduler cache and the scheduling queue to the
|
|
// scheduler logs for debugging purposes.
|
|
type CacheDumper struct {
|
|
cache internalcache.Cache
|
|
podQueue queue.SchedulingQueue
|
|
}
|
|
|
|
// DumpAll writes cached nodes and scheduling queue information to the scheduler logs.
|
|
func (d *CacheDumper) DumpAll() {
|
|
d.dumpNodes()
|
|
d.dumpSchedulingQueue()
|
|
}
|
|
|
|
// dumpNodes writes NodeInfo to the scheduler logs.
|
|
func (d *CacheDumper) dumpNodes() {
|
|
dump := d.cache.Dump()
|
|
nodeInfos := make([]string, 0, len(dump.Nodes))
|
|
for name, nodeInfo := range dump.Nodes {
|
|
nodeInfos = append(nodeInfos, d.printNodeInfo(name, nodeInfo))
|
|
}
|
|
// Extra blank line added between node entries for readability.
|
|
klog.InfoS("Dump of cached NodeInfo", "nodes", strings.Join(nodeInfos, "\n\n"))
|
|
}
|
|
|
|
// dumpSchedulingQueue writes pods in the scheduling queue to the scheduler logs.
|
|
func (d *CacheDumper) dumpSchedulingQueue() {
|
|
pendingPods := d.podQueue.PendingPods()
|
|
var podData strings.Builder
|
|
for _, p := range pendingPods {
|
|
podData.WriteString(printPod(p))
|
|
}
|
|
klog.InfoS("Dump of scheduling queue", "pods", podData.String())
|
|
}
|
|
|
|
// printNodeInfo writes parts of NodeInfo to a string.
|
|
func (d *CacheDumper) printNodeInfo(name string, n *framework.NodeInfo) string {
|
|
var nodeData strings.Builder
|
|
nodeData.WriteString(fmt.Sprintf("Node name: %s\nDeleted: %t\nRequested Resources: %+v\nAllocatable Resources:%+v\nScheduled Pods(number: %v):\n",
|
|
name, n.Node() == nil, n.Requested, n.Allocatable, len(n.Pods)))
|
|
// Dumping Pod Info
|
|
for _, p := range n.Pods {
|
|
nodeData.WriteString(printPod(p.Pod))
|
|
}
|
|
// Dumping nominated pods info on the node
|
|
nominatedPodInfos := d.podQueue.NominatedPodsForNode(name)
|
|
if len(nominatedPodInfos) != 0 {
|
|
nodeData.WriteString(fmt.Sprintf("Nominated Pods(number: %v):\n", len(nominatedPodInfos)))
|
|
for _, pi := range nominatedPodInfos {
|
|
nodeData.WriteString(printPod(pi.Pod))
|
|
}
|
|
}
|
|
return nodeData.String()
|
|
}
|
|
|
|
// printPod writes parts of a Pod object to a string.
|
|
func printPod(p *v1.Pod) string {
|
|
return fmt.Sprintf("name: %v, namespace: %v, uid: %v, phase: %v, nominated node: %v\n", p.Name, p.Namespace, p.UID, p.Status.Phase, p.Status.NominatedNodeName)
|
|
}
|