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dockershim: remove corrupted sandbox checkpoints 

This is a workaround to ensure that kubelet doesn't block forever when
the checkpoint is corrupted.
pull/6/head
Yu-Ju Hong 2017-03-13 15:33:59 -07:00
parent 4ff0af821a
commit 035afab901
1 changed files with 14 additions and 2 deletions
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16
pkg/kubelet/dockershim/docker_sandbox.go
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@ -144,6 +144,16 @@ func (ds *dockerService) StopPodSandbox(podSandboxID string) error {
glog.Warningf("Both sandbox container and checkpoint for id %q could not be found. "+
"Proceed without further sandbox information.", podSandboxID)
} else {
if checkpointErr == errors.CorruptCheckpointError {
// Remove the corrupted checkpoint so that the next
// StopPodSandbox call can proceed. This may indicate that
// some resources won't be reclaimed.
// TODO (#43021): Fix this properly.
glog.Warningf("Removing corrupted checkpoint %q: %+v", podSandboxID, *checkpoint)
if err := ds.checkpointHandler.RemoveCheckpoint(podSandboxID); err != nil {
glog.Warningf("Unable to remove corrupted checkpoint %q: %v", podSandboxID, err)
}
}
return utilerrors.NewAggregate([]error{
fmt.Errorf("failed to get checkpoint for sandbox %q: %v", podSandboxID, checkpointErr),
fmt.Errorf("failed to get sandbox status: %v", statusErr)})
@ -393,8 +403,10 @@ func (ds *dockerService) ListPodSandbox(filter *runtimeapi.PodSandboxFilter) ([]
glog.Errorf("Failed to retrieve checkpoint for sandbox %q: %v", id, err)
if err == errors.CorruptCheckpointError {
glog.V(2).Info("Removing corrupted checkpoint %q: %+v", id, *checkpoint)
ds.checkpointHandler.RemoveCheckpoint(id)
glog.Warningf("Removing corrupted checkpoint %q: %+v", id, *checkpoint)
if err := ds.checkpointHandler.RemoveCheckpoint(id); err != nil {
glog.Warningf("Unable to remove corrupted checkpoint %q: %v", id, err)
}
}
continue
}