Problem with accessing jira via jconsole or jvmtop

[Karol Urbaniak]

I want to troubleshoot high CPU usage on JIRA 7.12.3 server. I would like to check what is going on in java threads. According to Atlassian documentation (link) I use JConsole to take a look on java on server. I have enabled JMX in jira settings. When I finally establish X11 connection and run JConsole I wasn't able to open local process. I have just received information that connection couldn't be established. 

I have also tried to take a look on JAVA process via JVMTOP but also without success. I have received from jvmtop more usefull feedback like: 

Startup.Bootstrap [ERROR: Connection refused/access denied]

Question is now what is blocking me to be able to look at Java process? 

PS

All commands I'm doing as a root.

[Gonchik Tsymzhitov]

Hi! 

You need to open a debug port

[Brian]

I have exactly the same issue. My staging instance refuses to let me do exACTLY the same as I can in Production - start the jconsole from within your Jira openjdk 17 installation.

It suggests jconsole or the Jira boot jvm process, and then fails SSL (like on Production, and I choose "Insecure Connection", and it fails to connect.


Would someone care to reveal what might be the issue?

( Standard installed Jira instance (Data Center 9.12.3) )