jvm 收集故障现场脚本

客官°小女子只卖身不卖艺 2022-06-12 22:58 230阅读 0赞

有时候监控系统显示XXX-java应用出现高cup、高io、高内存，该怎样去定位及解决呢，解决思路在《[故障诊断][Link 1]》，以下是收集现场证据，便于定位问题

JAVA_HOME=/usr/java 
    
     OUTPUT_HOME=~/output 
    
     DEPLOY_HOME=`dirname$0` 
    
     HOST_NAME=`hostname` 
    
      
    
     DUMP_PIDS=`ps  --no-heading -C java -f --width 1000 | grep"$DEPLOY_HOME" |awk '{print $2}'` 
    
     if[-z"$DUMP_PIDS"];then 
    
         echo"The server $HOST_NAME isnot started!" 
    
         exit1; 
    
     fi 
    
      
    
     DUMP_ROOT=$OUTPUT_HOME/dump 
    
     if[!-d$DUMP_ROOT];then 
    
         mkdir$DUMP_ROOT 
    
     fi 
    
      
    
     DUMP_DATE=`date+%Y%m%d%H%M%S` 
    
     DUMP_DIR=$DUMP_ROOT/dump-$DUMP_DATE 
    
     if[!-d$DUMP_DIR];then 
    
         mkdir$DUMP_DIR 
    
     fi 
    
      
    
     echo -e "Dumping the server$HOST_NAME ...\c" 
    
     for PID in$DUMP_PIDS;do 
    
         $JAVA_HOME/bin/jstack $PID>$DUMP_DIR/jstack-$PID.dump 2>&1 
    
         echo -e ".\c" 
    
         $JAVA_HOME/bin/jinfo $PID>$DUMP_DIR/jinfo-$PID.dump 2>&1 
    
         echo -e ".\c" 
    
         $JAVA_HOME/bin/jstat -gcutil $PID>$DUMP_DIR/jstat-gcutil-$PID.dump 2>&1 
    
         echo -e ".\c" 
    
         $JAVA_HOME/bin/jstat -gccapacity $PID>$DUMP_DIR/jstat-gccapacity-$PID.dump 2>&1 
    
         echo -e ".\c" 
    
         $JAVA_HOME/bin/jmap $PID>$DUMP_DIR/jmap-$PID.dump 2>&1 
    
         echo -e ".\c" 
    
         $JAVA_HOME/bin/jmap -heap $PID>$DUMP_DIR/jmap-heap-$PID.dump 2>&1 
    
         echo -e ".\c" 
    
         $JAVA_HOME/bin/jmap -histo $PID>$DUMP_DIR/jmap-histo-$PID.dump 2>&1  
    
         echo -e ".\c" 
    
         if[-r/usr/sbin/lsof ];then 
    
         /usr/sbin/lsof -p $PID>$DUMP_DIR/lsof-$PID.dump 
    
         echo -e ".\c" 
    
         fi 
    
     done 
    
     if[-r/usr/bin/sar ];then 
    
     /usr/bin/sar >$DUMP_DIR/sar.dump 
    
     echo -e ".\c" 
    
     fi 
    
     if[-r/usr/bin/uptime ];then 
    
     /usr/bin/uptime >$DUMP_DIR/uptime.dump 
    
     echo -e ".\c" 
    
     fi 
    
     if[-r/usr/bin/free ];then 
    
     /usr/bin/free -t >$DUMP_DIR/free.dump 
    
     echo -e ".\c" 
    
     fi 
    
     if[-r/usr/bin/vmstat ];then 
    
     /usr/bin/vmstat >$DUMP_DIR/vmstat.dump 
    
     echo -e ".\c" 
    
     fi 
    
     if[-r/usr/bin/mpstat ];then 
    
     /usr/bin/mpstat >$DUMP_DIR/mpstat.dump 
    
     echo -e ".\c" 
    
     fi 
    
     if[-r/usr/bin/iostat ];then 
    
     /usr/bin/iostat >$DUMP_DIR/iostat.dump 
    
     echo -e ".\c" 
    
     fi 
    
     if[-r/bin/netstat ];then 
    
     /bin/netstat >$DUMP_DIR/netstat.dump 
    
     echo -e ".\c" 
    
     fi 
    
     echo"OK!"

如果你觉得自己写脚本比较麻烦，也可以安装一个唯品会分享的 [https://github.com/DarLiner/vjtools][https_github.com_DarLiner_vjtools]。![Link 1][]

[Link 1]: /images/20220613/87f44fe53bb146c6b1d650583ed4717c.png
[https_github.com_DarLiner_vjtools]: https://github.com/DarLiner/vjtools