How to troubleshooting JIRA no respond

[Mark]

In average our JIRA application down every 3 months. Today it down again. In the middle of business hour suddenly JIRA down. Everyone is getting "can't establish connection" error on browser.

JIRA, Confluence and Fisheye installed on same server (win2008R2) and we checked only JIRA is down.

In order to resume the service asap, we tried to restart the JIRA windows service (the status was "started" when it is down). But fail. So we kill the process (tomcat8.exe.x64) and start the service. It works now.

During the downtime, there is no log in the log file. 

My gut feeling is the tomcat have problem but I have no proof.

May I have your advice how should we troulbeshoot or work around this situation?

[Shankar Asam {Appfire}]

Hi Mark,

If you have 3 applications installed on the same server, it could be a system resource issue. Try adding more RAM or vCPU in case if it's a VM. You can then increase the JVM heap size for JIRA once the extra RAM is available. You may worth looking at below link for further info on troubleshooting the issue;

https://confluence.atlassian.com/jirakb/crashes-and-performance-issues-troubleshooting-203394749.html

Hope it helps,

[Mark]

Hi Shankar,

Our server have 8 cores CPU with 32GB memory. I think it is quite sufficient.

Maybe I need to increase the JVM heap size but any log or error I should see if it is the cause?

[Shankar Asam {Appfire}]

Yes, please take a look at below log files for any errors or cause of this issue;

<confluence-install>/logs/catalina.out

<JIRA-home-directory>/log/atlassian-jira.log

[Mark]

What would be the error message look like?

In catalane.out, there is nothing during JIRA down. (the 5 minutes is empty)

We do not have atlassian-jira.log, so I will look into stdout.yyyy-mm-dd.log.

[Shankar Asam {Appfire}]

if there no memory, the error should look like,

java.lang.OutOfMemoryError: Java heap space