睡梦中，被电话惊醒，web服务器挂了，恼火坏了。登陆服务器一阵忙活，发现apache服务器和memcache服务器非法关闭了。哎，为了睡得安稳，抓紧写个小脚本来监控下appach和memcache吧！很快就有了下面的脚本：
#!/bin/bash - name=`basename $0 .sh` function showHelp(){ echo "Usage: $name" echo " $name test|dev" exit 1 } if [ $# -ne 0 -a $# -ne 1 ]; then showHelp fi #正式/测试环境 test=0 if [ $# -eq 1 ]; then # echo "$1" if [ "$1" = "dev" -o "$1" = "test" ]; then test=1 else showHelp fi fi #echo $test websrvkey=/bin/httpd websrvbin=/etc/init.d/apachectl cachekey=/memcached cachebin=/usr/local/memcached/bin/memcached cachepid=/usr/local/memcached/memcached.pid cachedir=/usr/local/memcached #run web server function startweb(){ echo "`date` start websrv..." if [ ! -f $websrvbin ]; then echo "`date` websrv bin [$websrvbin] not exist..." return fi $websrvbin start echo "`date` start websrv complete..." } #run cache function startcache(){ echo "`date` start cache..." if [ $test -eq 1 ]; then cachebin=/usr/bin/memcached fi if [ ! -f $cachebin ]; then echo "`date` cache bin [$cachebin] not exist..." return fi if [ ! -d $cachedir ]; then echo "`date` cache dir not exist..." mkdir $cachedir echo "`date` create dir $cachedir" fi if [ $test -eq 0 ]; then $cachebin -d -m 100 -uroot -l 0.0.0.0 -p 11000 -c 512 -P $cachepid else $cachebin -d -m 128 -l 192.168.119.60 -p 12000 -u ossh fi echo "`date` start cache complete..." } cnt=`ps -ef | grep $websrvkey | grep -vc grep` # echo $cnt if [ $cnt -le 0 ]; then startweb fi cnt=`ps -ef | grep /memcached | grep -vc grep` #echo $cnt if [ $cnt -le 0 ]; then startcache fi
把上面的脚本保存为monitorWebSrv.sh，并对该文件赋予可执行权限，进行如下操作：
chmod +x /etc/app/slightphp/public/csevent/bin/crontab/monitorWebSrv.sh
然后加入crontab计划任务，如下：