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Fix task load.

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Signed-off-by: Lantao Liu <lantaol@google.com>
This commit is contained in:
Lantao Liu 2017-10-05 02:07:37 +00:00
parent 72a3a019ae
commit 28ca8f05d3
5 changed files with 25 additions and 7 deletions
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14
linux/task.go
View File

@ -5,6 +5,7 @@ package linux
import (
"context"
"github.com/pkg/errors"
"google.golang.org/grpc"
"github.com/containerd/cgroups"
@ -32,7 +33,8 @@ func newTask(id, namespace string, pid int, shim *client.Client, monitor runtime
cg cgroups.Cgroup
)
if pid > 0 {
if cg, err = cgroups.Load(cgroups.V1, cgroups.PidPath(pid)); err != nil {
cg, err = cgroups.Load(cgroups.V1, cgroups.PidPath(pid))
if err != nil && err != cgroups.ErrCgroupDeleted {
return nil, err
}
}
@ -253,6 +255,9 @@ func (t *Task) Process(ctx context.Context, id string) (runtime.Process, error)
// Metrics returns runtime specific system level metric information for the task
func (t *Task) Metrics(ctx context.Context) (interface{}, error) {
if t.cg == nil {
return nil, errors.Wrap(errdefs.ErrNotFound, "cgroup does not exist")
}
stats, err := t.cg.Stat(cgroups.IgnoreNotExist)
if err != nil {
return nil, err
@ -261,8 +266,11 @@ func (t *Task) Metrics(ctx context.Context) (interface{}, error) {
}
// Cgroup returns the underlying cgroup for a linux task
func (t *Task) Cgroup() cgroups.Cgroup {
return t.cg
func (t *Task) Cgroup() (cgroups.Cgroup, error) {
if t.cg == nil {
return nil, errors.Wrap(errdefs.ErrNotFound, "cgroup does not exist")
}
return t.cg, nil
}
// Wait for the task to exit returning the status and timestamp

8
metrics/cgroups/cgroups.go
View File

@ -62,10 +62,14 @@ type cgroupsMonitor struct {
func (m *cgroupsMonitor) Monitor(c runtime.Task) error {
info := c.Info()
t := c.(*linux.Task)
if err := m.collector.Add(info.ID, info.Namespace, t.Cgroup()); err != nil {
cg, err := t.Cgroup()
if err != nil {
return err
}
return m.oom.Add(info.ID, info.Namespace, t.Cgroup(), m.trigger)
if err := m.collector.Add(info.ID, info.Namespace, cg); err != nil {
return err
}
return m.oom.Add(info.ID, info.Namespace, cg, m.trigger)
}
func (m *cgroupsMonitor) Stop(c runtime.Task) error {

2
services/tasks/service.go
View File

@ -519,7 +519,9 @@ func getTasksMetrics(ctx context.Context, filter filters.Filter, tasks []runtime
collected := time.Now()
metrics, err := tk.Metrics(ctx)
if err != nil {
if !errdefs.IsNotFound(err) {
log.G(ctx).WithError(err).Errorf("collecting metrics for %s", tk.ID())
}
continue
}
data, err := typeurl.MarshalAny(metrics)

2
vendor.conf
View File

@ -1,7 +1,7 @@
github.com/coreos/go-systemd 48702e0da86bd25e76cfef347e2adeb434a0d0a6
github.com/containerd/go-runc b3c048c028ddd789c6f9510c597f8b9c62f25359
github.com/containerd/console 84eeaae905fa414d03e07bcd6c8d3f19e7cf180e
github.com/containerd/cgroups 5933ab4dc4f7caa3a73a1dc141bd11f42b5c9163
github.com/containerd/cgroups 9c238e632e80d94f71a067c3deb9b34b1886ef18
github.com/containerd/typeurl f6943554a7e7e88b3c14aad190bf05932da84788
github.com/docker/go-metrics 8fd5772bf1584597834c6f7961a530f06cbfbb87
github.com/docker/go-events 9461782956ad83b30282bf90e31fa6a70c255ba9

4
vendor/github.com/containerd/cgroups/cgroup.go generated vendored
View File

@ -10,6 +10,7 @@ import (
"sync"
specs "github.com/opencontainers/runtime-spec/specs-go"
"github.com/pkg/errors"
)
// New returns a new control via the cgroup cgroups interface
@ -39,6 +40,9 @@ func Load(hierarchy Hierarchy, path Path) (Cgroup, error) {
for _, s := range pathers(subsystems) {
p, err := path(s.Name())
if err != nil {
if os.IsNotExist(errors.Cause(err)) {
return nil, ErrCgroupDeleted
}
return nil, err
}
if _, err := os.Lstat(s.Path(p)); err != nil {