#!/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. #This script will check CM to see if Hue is using too much memory #then will restart if necessary. CM_HOSTNAME="cdh53-1.qa.test.com" CM_PORT="7180" CM_USERNAME="admin" CM_PASSWORD="admin" 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/`basename "$0" | awk -F\. '{print $1}'`.log ROTATE_SIZE=10 #MB before rotating, size in MB before rotating log to .1, we only keep #2 log files, so 20MB max TMP_LOCATION=/tmp/hue_mem_cron main() { DATE=`date '+%Y%m%d-%H%M'` YEAR=`date '+%Y'` MONTH=`date '+%m'` DAY=`date '+%d'` HOUR=`date '+%H'` MINUTE=`date '+%M'` YEAR_PRIOR=`date --date='1 minutes ago' '+%Y'` MONTH_PRIOR=`date --date='1 minutes ago' '+%m'` DAY_PRIOR=`date --date='1 minutes ago' '+%d'` HOUR_PRIOR=`date --date='1 minutes ago' '+%H'` MINUTE_PRIOR=`date --date='1 minutes ago' '+%M'` MEM_JSON_FILE=${TMP_LOCATION}/mem.json MB_BYTES="1048576" mkdir -p ${TMP_LOCATION} if [[ -f ${LOG_FILE} ]] then LOG_SIZE=`du -sm ${LOG_FILE} | awk '{print $1}'` if [[ ${LOG_SIZE} -gt ${ROTATE_SIZE} ]] then mv ${LOG_FILE} ${LOG_FILE}.1 fi fi MEM_API_URL="/api/v6/timeseries?query=select+mem_rss+where+roleType+%3D+HUE_SERVER&contentType=application%2Fjson&from=${YEAR_PRIOR}-${MONTH_PRIOR}-${DAY_PRIOR}T${HOUR_PRIOR}%3A${MINUTE_PRIOR}%3A00.000Z&to=${YEAR}-${MONTH}-${DAY}T${HOUR}%3A${MINUTE}%3A00.000Z" #Get memory usage for all Hue roles: curl -X GET -u ${CM_USERNAME}:${CM_PASSWORD} -i -o ${MEM_JSON_FILE} "http://${CM_HOSTNAME}:${CM_PORT}${MEM_API_URL}" while read -r LINE do if [[ ${LINE} =~ .*clusterName* ]] then CLUSTERNAME=`echo ${LINE} | awk -F\" '{print $4}'` fi if [[ ${LINE} =~ .*serviceName* ]] then SERVICENAME=`echo ${LINE} | awk -F\" '{print $4}'` fi if [[ ${LINE} =~ .*roleName* ]] then ROLENAME=`echo ${LINE} | awk -F\" '{print $4}'` fi if [[ ${LINE} =~ .*value* ]] then MEM=`echo ${LINE} | awk '{print $3}' | awk -F, '{print $1}'` MEM=`printf "%.f" $MEM` # convert from scientific to decimal MEM_MB=`expr ${MEM} / ${MB_BYTES}` debug "${DATE} - ROLENAME: ${ROLENAME} - MEM: ${MEM} - MEM_MB: ${MEM_MB}" if [ ${MEM_MB} -gt ${KILL_ME} ] then echo "${DATE} - Restart the Hue Process: Too much memory: ${MEM_MB} : ROLENAME: ${ROLENAME}" >> ${LOG_FILE} RESTART_API_URL="/api/v8/clusters/${CLUSTERNAME}/services/${SERVICENAME}/roleCommands/restart" curl -X POST -u ${CM_USERNAME}:${CM_PASSWORD} -i -H "content-type:application/json" -d "{\"items\" : [\"${ROLENAME}\"]}" "http://${CM_HOSTNAME}:${CM_PORT}${RESTART_API_URL}" exit 0 fi fi done < <(cat ${MEM_JSON_FILE}) } debug() { if [[ ! -z $VERBOSE ]] then echo "$1" >> ${LOG_FILE} fi } main "$@"