#!/bin/bash
# 
# netconsole    This loads the netconsole module with the configured parameters.
#
# chkconfig:123456 40 60
# description: keepyarnhistory
source /etc/profile
PRO_NAME=keepyarnhistory

INS_DIR={{ deploy_dir }}
#版本
VERSION={{ hadoop_version }}

case $1 in
start)
master=`ps -ef | grep "dae-yarnhistory.sh" | grep -v grep | wc -l`
if [ $master -lt 1 ];then
nohup $INS_DIR/$VERSION/sbin/dae-yarnhistory.sh > /dev/null 2>&1 &
fi
;;

stop)
HAS_KEEP_SHELL=`ps -ef | grep "dae-yarnhistory.sh" | grep -v grep | awk '{print $2}'`
if [ $HAS_KEEP_SHELL ];then
echo "守护进程PID：$HAS_KEEP_SHELL"
kill -9 $HAS_KEEP_SHELL
fi

sh $INS_DIR/$VERSION/sbin/mr-jobhistory-daemon.sh stop historyserver > /dev/null
;;

status)
HAS_HISTORY=`ps -ef | grep "org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer" | grep -v grep | wc -l`

if [ $HAS_HISTORY -eq "0" ];then
echo "JobHistoryServer not running!"
else
echo "JobHistoryServer is running!"
fi
;;

* )
echo "use keepyarnhistory [start|stop|status]"
;;
esac