自动抓取java堆栈

参数1 进程名字，参数2 最大线程数

例：

　　pid为8888，达到1000个线程时自动抓取堆栈信息

　　./autojstack.sh 8888 1000 &

#!/bin/bash
fileName=$0
proc=$1
maxThreadCount=$2
declare -i count=1
threadCount=0
 
while true
do
    sleep 5s
    pid=`ps -ef | grep $proc | grep -v 'grep'|grep -v $fileName | awk '{print $2}'`
    threadCount=`ps -Tfp $pid| wc -l`
    if (($threadCount >= $maxThreadCount))
    then
        echo `jstack $pid>/tmp/"jstack_"$proc"_"$count`
        echo "jstack_"$proc"_"$count" threadCount:"$threadCount" OK"
        count=$count+1
        if(($count > 3))
        then
            exit 0
        fi
    fi
done

 

作者:No.40

Blog:http://www.cnblogs.com/no40