JConsole can't find process

Question

I tried to run JConsole to analyze the memory used by a running process, but JConsole doesn\'t show me processes even though I am absolutely sure that one is running (in additio

Answer 1

This happens when %TMP% value is different for monitored JVM and the monitoring tool (JConsole/JMC/Java Mission Control, maybe even VisualVM). This may be the standard scenario with Cygwin (at least in my case: Cygwin+Babun) Easiest solution is to set value of the TMP environment variable to the default value used by Windows, at least in scope of shell launching the JVM.

Answer 2

If you are running jconsole on windows - simply :

1. Find jconsole.exe
2. Right click it
3. Select run as administrator.

Answer 3

In my case, removal of hsperfdata_USERNAME directory (in %TMP% directory) and closing all the JVMs has helped.

Answer 4

I have the same problem. But if I explicitly specify the PID, as in jconsole 1234, jconsole is able to analyze the process.

Answer 5

at window prompt, run echo %TMP%, it will give you default temp dir. Go to that directory and find directory named hsperfdata_user where user is your login. This is directory to store your process id. Any new process you created such as java application will have a new file named by process id. Jconsole will pick up the process ids from this directory. If you cannot create a file in this directory, that means you need change permission to allow write. Once done that, start a new java application to see if new process id file is in the dir. Once confirmed, start jconsole

Answer 6

You have to start jconsole with the same user as the process you want to analyze is started by.