监控tomcat 启动

主题 通过监控tomcat状态 如果找不到tomcat进程就进行启动

如果tomcat进程存在  就输出时间  进程号 

 注意在tomcat的bin目录下  需要新增 java_home jre_home的变量

[root@duanxin bin]# cat setclasspath.sh 
#!/bin/sh
# -----------------------------------------------------------------------------
#  Set CLASSPATH and Java options
#
#  $Id: setclasspath.sh 345508 2005-11-18 15:54:56Z yoavs $
# -----------------------------------------------------------------------------

# First clear out the user classpath
export JAVA_HOME=/usr/local/jdk
export JRE_HOME=/usr/local/jdk/jre

 如果不进行修改就会出现以下报错

[info]/usr/local/tomcat7/apache-tomcat-7.0.88/bin/startup.sh,请稍候......
Neither the JAVA_HOME nor the JRE_HOME environment variable is defined
At least one of these environment variable is needed to run this program

 脚本如下

[root@duanxin bin]# cat /nod/jian.sh 
#!/bin/sh

TomcatID=$(ps -ef |grep tomcat |grep -v 'grep'|grep -v 'tomcat.log'|awk '{print $2}')


# tomcat启动程序(这里注意tomcat实际安装的路径)

StartTomcat=/usr/local/tomcat/bin/startup.sh


Monitor()  
{  
  echo "[info][$(date +'%F %H:%M:%S')]tomcat情况"  
  if [[ $TomcatID ]];then # 这里判断TOMCAT进程是否存在  
    echo "[info]当前tomcat进程ID为:$TomcatID..."  
  else  
    echo "[error]tomcat进程不存在!tomcat开始自动重启..."  
    echo "[info]$StartTomcat,请稍候......"  
    sh $StartTomcat  
  fi  
  echo "------------------------------"  
}
Monitor>>/nod/tomcat.log

定时任务部分

*/1 * * * * /nod/jian.sh

输出日志