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- #!/bin/bash
- # Licensed to Cloudera, Inc. under one
- # or more contributor license agreements. See the NOTICE file
- # distributed with this work for additional information
- # regarding copyright ownership. Cloudera, Inc. licenses this file
- # to you under the Apache License, Version 2.0 (the
- # "License"); you may not use this file except in compliance
- # with the License. You may obtain a copy of the License at
- #
- # http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
- #Cron script designed to kill Hue instances that are utilizing too much memory.
- #If using CM, then configure CM to restart the Hue process when it dies and
- #then Hue will restart after this script kills it. Otherwise, modify this script
- #to start Hue again.
- KILL_ME=5000 #This is the number of MB at which it will kill.
- #Starting with 5000(5gb)
- VERBOSE=true #true then this writes out the proc info each time it runs, leave blank
- #to only write out when we kill the process
- LOG_FILE=/var/log/hue_mem_cron.log
- ROTATE_SIZE=10 #MB before rotating, size in MB before rotating log to .1, we only keep
- #2 log files, so 20MB max
- main()
- {
- # Command to get memory usage. This will handle multiple Hue instances per server, so
- # this command grabs the highest memory Hue process at the time of running and
- # kills it. Then the next run it'll get the next process.
- PS_COMMAND=`ps aux | grep [r]uncherrypyserver | awk '{print $6" "$2" "$3" "$12}'`
- MEM=`echo ${PS_COMMAND} | awk '{print $1}'`
- MEM_MB=`expr ${MEM} / 1024`
- PID=`echo ${PS_COMMAND} | awk '{print $2}'`
- CPU=`echo ${PS_COMMAND} | awk '{print $3}'`
- PROC=`echo ${PS_COMMAND} | awk '{print $4}'`
- DATE=`date '+%Y%m%d-%H%M'`
- if [[ -f ${LOG_FILE} ]]
- then
- LOG_SIZE=`du -sm ${LOG_FILE} | awk '{print $1}'`
- if [ ${LOG_SIZE} -gt ${ROTATE_SIZE} ]
- then
- mv ${LOG_FILE} ${LOG_FILE}.1
- fi
- fi
- debug "${DATE} - PID: ${PID} - CPU: ${CPU} - MEM: ${MEM} - MEM_MB: ${MEM_MB} - PROC: ${PROC}"
- if [ ${MEM_MB} -gt ${KILL_ME} ]
- then
- echo "${DATE} - Killing Hue Process: Too much memory: ${MEM_MB} : PID: ${PID}" >> ${LOG_FILE}
- kill ${PID}
- sleep 30
- PID2=`ps aux | grep [r]uncherrypyserver | awk '{print $2}'`
- if [[ ${PID} == ${PID2} ]]
- then
- kill -9 ${PID}
- fi
- fi
- }
- debug()
- {
- if [[ ! -z $VERBOSE ]]
- then
- echo "$1" >> ${LOG_FILE}
- fi
- }
- main "$@"
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