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Merge pull request #1009 from sameo/topic/ctr-create-2s-fix 

oci: Remove useless crio-conmon- cgroup deletion
This commit is contained in:
Mrunal Patel 2017-10-13 08:53:29 -07:00 committed by GitHub
parent c4f7506896 29121c8c0c
commit 38c2a34b46
1 changed files with 6 additions and 5 deletions
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11
oci/oci.go
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@ -224,11 +224,12 @@ func (r *Runtime) CreateContainer(c *Container, cgroupParent string) (err error)
if err != nil {
logrus.Warnf("Failed to add conmon to cgroupfs sandbox cgroup: %v", err)
} else {
// XXX: this defer does nothing as the cgroup can't be deleted cause
// it contains the conmon pid in tasks
// we need to remove this defer and delete the cgroup once conmon exits
// maybe need a conmon monitor?
defer control.Delete()
// Here we should defer a crio-connmon- cgroup hierarchy deletion, but it will
// always fail as conmon's pid is still there.
// Fortunately, kubelet takes care of deleting this for us, so the leak will
// only happens in corner case where one does a manual deletion of the container
// through e.g. runc. This should be handled by implementing a conmon monitoring
// routine that does the cgroup cleanup once conmon is terminated.
if err := control.Add(cgroups.Process{Pid: cmd.Process.Pid}); err != nil {
logrus.Warnf("Failed to add conmon to cgroupfs sandbox cgroup: %v", err)
}