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为什么会"well-known file is not secure" ?

 
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    最近一段时间经常使用JDK自带工具jmap和jstack来dump JVM heap和JVM 线程栈的log来分析问题,执行这两个命令当时让我最摸不着头脑的就是碰到这个问题:well-known file is not secure

eg:

   

  上网google了一把,在stackoverflow上找到答案:http://stackoverflow.com/questions/9100149/jstack-well-known-file-is-not-secure?rq=1,大概意思是:

 

     我们可以在机器上找到 /tmp/hsperfdata_$USER/$PID一个这样的文件,当我们执行jmap或者jstack出现上叙信息时,先检查执行该命令的用户是否和hsperfdata_$USER这个文件所属的用户一致,如果不一致,切换至成一致再执行即可。

 

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1 楼 asdiy 2013-10-10  
very good!
原来是这个原因!

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