func StartBackoffGC(backoff *flowcontrol.Backoff, stopCh <-chan struct{}) {
go func() {
for {
select {
case <-time.After(time.Minute):
backoff.GC()
case <-stopCh:
return
}
}
}()
}
// If a container is still in backoff, the function will return a brief backoff error and
// a detailed error message.
func (m *kubeGenericRuntimeManager) doBackOff(pod *v1.Pod, container *v1.Container, podStatus *kubecontainer.PodStatus, backOff *flowcontrol.Backoff) (bool, string, error) {
var cStatus *kubecontainer.ContainerStatus
for _, c := range podStatus.ContainerStatuses {
if c.Name == container.Name && c.State == kubecontainer.ContainerStateExited {
cStatus = c
break
}
}
if cStatus == nil {
return false, "", nil
}
glog.Infof("checking backoff for container %q in pod %q", container.Name, format.Pod(pod))
// Use the finished time of the latest exited container as the start point to calculate whether to do back-off.
ts := cStatus.FinishedAt
// backOff requires a unique key to identify the container.
key := getStableKey(pod, container)
if backOff.IsInBackOffSince(key, ts) {
if ref, err := kubecontainer.GenerateContainerRef(pod, container); err == nil {
m.recorder.Eventf(ref, v1.EventTypeWarning, events.BackOffStartContainer, "Back-off restarting failed container")
}
err := fmt.Errorf("Back-off %s restarting failed container=%s pod=%s", backOff.Get(key), container.Name, format.Pod(pod))
glog.Infof("%s", err.Error())
return true, err.Error(), kubecontainer.ErrCrashLoopBackOff
}
backOff.Next(key, ts)
return false, "", nil
}