monitor.sh监控进程并重启拉起
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比如在服务器开启了php死循环程序，为了防止php进程僵死或挂掉，需要sh监控进程并重启拉起。
当日志记录时间超过5分钟就kill重启拉起
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#!/bin/bash## 请使用crontab -e 来输入命令每隔一定时间调用本程序# */1 * * * * /bin/sh /var/www/test/protected/commands/shell/monitor.sh##日志文件LOG_DATE=`date +%Y-%m-%d`LOG_PATH="/var/www/logs/monitor_${LOG_DATE}.log"run_php_path="/usr/local/php/bin/php"if [[ $0 = \* ]]then curfile="$0"else curfile="$PWD/${0#./}"fiphp_path=`dirname $curfile`#yiicmd.php所在目录phpCmdDir=`dirname $php_path`#yii命令行都是执行此phpphpCmdName="yiicmd.php"# 配置监控的程序及对应的监控频率时间及允许启动的线程数shconfig[0]="drawresult"shtime[0]=600shconfig[1]="kkdrawresult"shtime[1]=600LOG_START_TIME=`date +'%Y-%m-%d %H:%M:%S'`echo " " >> $LOG_PATH echo "monitor.sh run start...... time : $LOG_START_TIME" >> $LOG_PATH #下面这里不用改路径IP=`ifconfig | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}'`#当前进程数MAX_THREAD=4CUR_THREAD=0CUR_SERVER=0# 循环取配置的各个进程一个个检查并关闭i=0for index in "${shconfig[@]}"do echo "check ${phpCmdDir} ${phpCmdName} ${index} thread......" >> $LOG_PATH #线程数 # 判断是不是有重复进程,保证一台电脑上只有一个进程counter=`ps -ef | grep "${phpCmdDir}${phpCmdName} ${index}" | grep -v grep | wc -l`if [ $counter -gt 1 ]; thenecho "kill mulithreed ${phpCmdDir}${phpCmdName} ${index}" >> $LOG_PATH ps -ef | grep "${phpCmdDir}${phpCmdName} ${index}" | grep -v "grep" | awk '{print $2}'|xargs killsleep 1fi#检查进程 拉起进程if [ $counter -eq 0 ]; thenecho "run ${phpCmdDir}${phpCmdName} ${index}" >> $LOG_PATH ${run_php_path} ${phpCmdDir}${phpCmdName} ${index} &continue 1fi last_time=`date +%s` FILENAME="/var/www/logs/${index}${CUR_THREAD}.time" echo "${FILENAME}" >>$LOG_PATH if [ -e $FILENAME ] then last_time="`cat ${FILENAME}`" else last_time=0 fi if [ -z $last_time ] then last_time=0 fi current_time=`date +%s` let "diff_time = current_time - $last_time " echo "${current_time} ${last_time} = ${diff_time} > ${shtime[i]}" >> $LOG_PATH # 如果时间超过50秒，重启 if [ "$diff_time" -ge "${shtime[i]}" ] then # 关闭此进程 echo "stop $index......" >> $LOG_PATH chpid="`cat /var/www/logs/${index}.sid`"; kill $chpid; echo "kill ${phpCmdDir}${phpCmdName} ${index} done!" >> $LOG_PATH ps ax|grep "${phpCmdDir}${phpCmdName} ${index}" |grep -v grep|awk '{print $1}'|xargs kill # 休眠两秒后再启动服务 sleep 2 echo "restart ${phpCmdDir}${phpCmdName} ${index}......" >> $LOG_PATH echo "${run_php_path} ${phpCmdDir}${phpCmdName} ${index}" >> $LOG_PATH ${run_php_path} ${phpCmdDir}${phpCmdName} ${index} & sleep 1 shpid="$!"; echo "$shpid" > /var/www/logs/${index}.sid echo "success restart $index......" >> $LOG_PATH fi i=$(($i+1))doneLOG_END_TIME=`date +'%Y-%m-%d %H:%M:%S'`echo "monitor.sh run end......time: $LOG_END_TIME" >> $LOG_PATH ??
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