docker - create a "Best-effort" pod and its oom score not 1000 but -999 -


create deployment below:

apiversion: extensions/v1beta1 kind: deployment metadata:   labels:     owt: hello     pdl: com     app: world     idc: xg     add: parameters-48   name: parameters-48 spec:   replicas: 2   template:     metadata:       labels:         name: parameters-48     spec:       containers:       - name: mofang-web         image: registry.cc.com/online/mofang:stable       nodeselector:         node:cc

login node found container's pid, check oom score:

cat /proc/21606/oom_adj -16 cat /proc/21606/oom_score 0 cat /proc/21606/oom_score_adj -999

according user guide page: https://github.com/kubernetes/community/blob/master/contributors/design-proposals/resource-qos.md, pod should "best-effort" pod, oom_score_adj not 1000 -999. way -999 means won't oom killed.

following issue, it's maybe worth summarize how find correct container pid / proc pod:

run application:

$ kubectl run bootcamp --image=docker.io/jocatalin/kubernetes-bootcamp:v1

find containerid:

$ kubectl pods --output=jsonpath='{.items[*].status.containerstatuses[*].containerid}' docker://59f127d641cef9475309cbf4b5fc2e4a65f3e52a0e08112dccbc2c144a0e366f

find related host / node:

$ kubectl pods --output=jsonpath='{.items[*].status.hostip}'                           192.168.99.100

both found with:

$ kubectl describe pod <podid>

connect node via ssh, run:

$ docker inspect 59f127d641cef9475309cbf4b5fc2e4a65f3e52a0e08112dccbc2c144a0e366f | grep pid\": "pid": 18052, $ cat /proc/18052/oom_*          15 1000 1000

hope helps else @ point


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