Heap Memory Dump with Embedded Java

Ignition
1

I have a system that has been running for a few months now.
We have noticed recently that the heap size is growing and is now exceeded the available space.

Total Memory 2GB
Non-Heap 320MB
Heap 1.9GB
Version 8.1.12

There are no timed gateway scripts.
As this is using the embedded JAVA packaged within the Ignition install. Is there a way I can obtain a dump of the heap to start to identify the root cause of this leak?

I can try increasing the heap size when I can next shutdown the system, However it looks to be growing over time so an increase in total memory only delays the issue. I would really like to know how to identify and resolve the root cause.

2

Install any JDK with the same version as the embedded java. That will give you the tools you need, like jhat.

You will almost certainly want to compare a nearly clean system (post restart) against the situation when nearly full.

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