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How to monitor Confluence Heap memory

sowmya_fev0l6

Hi,

We are frequently facing the outofmemory issue in our Confluence Application.Please let me know if anyone have idea about Monitoring the the Heap memory automatically.

Please share me the details if there is any monitoring tool ,any automation jobs or any other possible ways to fix this issue.

Thanks,

Sowmya

Accepted answers

All comments

Daniel Eads

Hi Sowmya,

There are several monitoring tools available that can help you see what's happening in your JVM.

Hosted as a service:

Running locally:

JConsole

Without knowing how large your JVM heap currently is or what your environment looks like, it's hard to say off-hand if just increasing your heap would help out in your situation. With more details (max / min heap allocations, number of users, number of plugins), the Community might advise you to make some tweaks. I'd also look for activities around times you see your heap spiking - particular plugins for example might be using a lot of memory for a function triggered only by one user, which causes a spike that exhausts your remaining heap.

Finally I cannot recommend this talk enough by Atlassian's own Denise Unterwurzacher to help inform how to do JVM memory tuning.

Cheers,
Daniel

Doug Swartz

In addition to the tools mentioned above, you could try out the Java Melody plugin.

Daniel is correct. More allocated heap may, or may not, help. If you don't have a good understanding of how Java manages memory, and the talk referenced above doesn't help you, you need to find or contract with someone with Atlassian application tuning experience.

Zak Laughton

Gonna hop on the "Java tuning recommendation" train here and also suggest:

sowmya_fev0l6

Hi All,

Thanks a lot for the replay.

Our application is running as a windows service,and its currently allocated with the default JVM heap memory i.e. 1024 MB.

We have previously attempted to increase memory allocated to Confluence We found that the additional memory was not recognized by Confluence, and determined that this was because we are still running an old 32 bit version of the application and JVM which does not allow for heap size beyond 1024MB.

We have around 230 users and 57 installed plugins in confluence ,i am not sure about finding out which plugin is consuming more memory. Please let me know what are the ways to check which plugin is consuming more memory.Also Please let me know if we have any script to get the JVM memory statistics details as we have JAMS available for scheduling purpose which is similar to New Relic and App Dynamics agent installation

Thanks,

Sowmya

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