rpc-dump.sh

#!/usr/bin/env bash

DIR=$(dirname "$0")

NS=$($DIR/current-namespace)

PODS=$(kubectl -n $NS get pods -l app.kubernetes.io/name=rpc-service -o name)

for pod in $PODS; do
  tstamp=$(date +%s)
  echo "Creating dump files pod=$pod using timestamp=$tstamp"
  cmd='pid=$(jps | grep -i rpc | cut -d " " -f1) && cd /dumps && jstack $pid > ' $tstamp '.stack && jmap -dump:live,format=b,file=' $tstamp '.hprof $pid && tar -cf ' $tstamp '.hprof.tar ' $tstamp '.hprof'
  kubectl exec -n $NS -ti $pod -- /bin/bash -c $cmd
  kubectl cp -n $N $pod:/dumps/$tstamp.hprof.tar $pod-$tstamp.hprof.tar
done