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https://issues.apache.org/jira/browse/NIFI-12830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pierre Villard resolved NIFI-12830.
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Resolution: Feedback Received
Apache NiFi 1.x is no longer maintained and no new release is planned on the
1.x release line. Marking as resolved as part of a cleanup operation. Please
open a new one with an updated description if this is still relevant for NiFi
2.x.
> Memory leak outside of heap
> ---------------------------
>
> Key: NIFI-12830
> URL: https://issues.apache.org/jira/browse/NIFI-12830
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.22.0
> Environment: Openshift
> Reporter: saarbs
> Priority: Major
>
> We run NiFi on Openshift and we are experiencing problems regarding memory
> leaks in some of our clusters. we set the max heap size to 50% (6g) of the
> pod request and limit (12Gi), and we experience frequent OOM kills almost 4-5
> times a day per pod in our 5 pod cluster.
> Using {{top}} we see the process memory usage increases over time until it
> reaches twice the heap size and is killed by the Openshift OOM Killer.
> Using
> {code:java}
> jcmd VM.native_memory{code}
> we determined that the leak is not in the heap and is not in memory tracked
> off-heap.
> Then we used {{pmap}} and partial memory dumps of the parts we suspect are
> part of the leak.
> Inspecting the memory using {{strings}} the notable content is JDI type
> signatures, flowfile attributes, and flowfile contents.
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