jcmd (java process memory monitoring)

#!/bin/bash
pid=$(jps | grep external-web.jar | awk -F " " '{print $1}')
da=$(date +%Y%m%d%H%M%S)
da1=$(date +%Y%m%d)
echo "=start file $da=" >>/logs/reso/external-web/log/$da1"_"resource.log
echo "date|reserved|committed_1|malloc|mmap|committed_2" >>/logs/reso/external-web/log/$da1"_"resource.log
while true; do
  da2=$(date +%Y%m%d%H%M%S)
  da3=$(date +%Y%m%d)
  real1=$(jcmd $pid VM.native_memory | grep -A 2 "Internal" | awk -v FS="(=|KB)" '{print $2}' | head -n 1 | tail -1)
  real2=$(jcmd $pid VM.native_memory | grep -A 2 "Internal" | awk -v FS="(=|KB)" '{print $4}' | head -n 1 | tail -1)
  real3=$(jcmd $pid VM.native_memory | grep -A 2 "Internal" | awk -v FS="(=|KB)" '{print $2}' | head -n 2 | tail -1)
  real4=$(jcmd $pid VM.native_memory | grep -A 2 "Internal" | awk -v FS="(=|KB)" '{print $2}' | head -n 3 | tail -1)
  real5=$(jcmd $pid VM.native_memory | grep -A 2 "Internal" | awk -v FS="(=|KB)" '{print $4}' | head -n 3 | tail -1)
  echo $da2"|"$real1"|"$real2"|"$real3"|"$real4"|"$real5 >>/logs/reso/external-web/log/$da3"_"resource.log
  sleep 1
done

javaprocess  memory monitoring

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