script to kill yarn application if it is running more than x mins

[#1]

Sometime we get a situation where we have to get lists of all long running and based on threshold we need to kill them.Also sometime we need to do it for a specific yarn queue. In such situation following script will help you to do your job.

#!/bin/bash

if [ "$#" -lt 1 ]; then

  echo "Usage: $0  <max_life_in_mins>"

  exit 1

fi

yarn application -list 2>/dev/null | grep "report" | grep "RUNNING" | awk '{print $1}' > job_list.txt

for jobId in `cat job_list.txt`

do

finish_time=`yarn application -status $jobId 2>/dev/null | grep "Finish-Time" | awk '{print $NF}'`

if [ $finish_time -ne 0 ]; then

  echo "App $jobId is not running"

  exit 1

fi

time_diff=`date +%s`-`yarn application -status $jobId 2>/dev/null | grep "Start-Time" | awk '{print $NF}' | sed 's!$!/1000!'`

time_diff_in_mins=`echo "("$time_diff")/60" | bc`

echo "App $jobId is running for $time_diff_in_mins min(s)"

if [ $time_diff_in_mins -gt $1 ]; then

  echo "Killing app $jobId"

  yarn application -kill $jobId

else

  echo "App $jobId should continue to run"

fi

done

[yarn@m1.hdp22 ~]$ ./kill_application_after_some_time.sh 30 (pass x tim in mins)

App application_1487677946023_5995 is running for 0 min(s)

App application_1487677946023_5995 should continue to run