jstack命令报错：Unable to open socket file: target process not responding or HotSpot VM not loaded

java | 2020-05-29 17:16:05

jstack命令执行报错，报错如下

Unable to open socket file: target process not responding or HotSpot VM not loaded
The -F option can be used when the target process is not responding

经过检查发现jstack后面的进程不是在root用户执行的，切换到另一个用户执行成功

后面发现ps -aux或ps -ef也能看出进程是谁执行的

# ps -ef
UID        PID  PPID  C STIME TTY          TIME CMD
root         1     0  0 May03 ?        00:00:27 /usr/lib/systemd

UID就是启动进程的用户

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