These are simple metrics that allow users to view more fine grained metrics on
internal operations.
Signed-off-by: Michael Crosby <michael@thepasture.io>
The event monitor handles exit events one by one. If there is something
wrong about deleting task, it will slow down the terminating Pods. In
order to reduce the impact, the exit event watcher should handle exit
event separately. If it failed, the watcher should put it into backoff
queue and retry it.
Signed-off-by: Wei Fu <fuweid89@gmail.com>
