在工作中遇到了statefulset不能正常删除的问题，命令一直挂起不能执行得到结果，比如：
kubectl delete statefulset is-en-conductor
[root@opsft-lb-1 OpenShift] oc get all
NAME DESIRED CURRENT AGE
statefulsets/is-en-conductor 0 1 5h
statefulsets/is-engine-compute 0 2 5h
NAME READY STATUS RESTARTS AGE
po/is-en-conductor-0 0/1 Terminating 2 1h
po/is-engine-compute-0 1/1 Running 0 5h
po/is-engine-compute-1 0/1 Terminating 0 5h
解决办法如下，如果在其他namespace中，注意用-n <ns>指定
kubectl delete statefulsets <statefulset name> --force --grace-period=0 --cascade=false
然后逐个删除挂起的pod:
NAME READY STATUS RESTARTS AGE
po/is-en-conductor-0 0/1 Terminating 2 1h
po/is-engine-compute-0 1/1 Running 0 5h
po/is-engine-compute-1 0/1 Terminating 0 5h
kubectl delete pod <pod name> --force --grace-period=0
