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https://issues.apache.org/jira/browse/SOLR-18186?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ravi Ranjan Jha updated SOLR-18186:
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Description:
Solr heap used percentage uses committed heap instead of max heap. Ideally it
should use configured max heap size for the calculation.
It causes unnecessary concern to the users who see a high percentage in red
even for low heap usage.
As an example in this image it shows the heap usage as 89% in red for 6.9 GB
usage because committed memory is 7.6 GB but the actually configured max heap
(-Xmx) is 12GB. This computation should use configured max heap size of 12 GB
instead which will show the actual status of the node heap usage.
!image-2026-04-01-15-52-26-883.png!
!image-2026-04-01-15-54-29-256.png!
was:
Solr heap used percentage uses committed heap instead of max heap. Ideally it
should use configured max heap size for the calculation.
At this point, it causes unnecessary concern to the users can see a high
percentage in red even for low heap usage.
As an example in this image it shows the heap usage as 89% in red for 6.9 GB
usage because committed memory is 7.6 GB but the actually configured max heap
(-Xmx) is 12GB. This computation should use configured max heap size of 12 GB
instead which will show the actual status of the node heap usage.
!image-2026-04-01-15-52-26-883.png!
!image-2026-04-01-15-54-29-256.png!
> Solr heap used percentage uses committed heap instead of max heap which
> raises false alarm
> -------------------------------------------------------------------------------------------
>
> Key: SOLR-18186
> URL: https://issues.apache.org/jira/browse/SOLR-18186
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Admin UI
> Affects Versions: 10.0, 9.10.1
> Reporter: Ravi Ranjan Jha
> Priority: Major
> Labels: pull-request-available
> Attachments: image-2026-04-01-15-52-26-883.png,
> image-2026-04-01-15-54-29-256.png
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Solr heap used percentage uses committed heap instead of max heap. Ideally it
> should use configured max heap size for the calculation.
> It causes unnecessary concern to the users who see a high percentage in red
> even for low heap usage.
> As an example in this image it shows the heap usage as 89% in red for 6.9 GB
> usage because committed memory is 7.6 GB but the actually configured max heap
> (-Xmx) is 12GB. This computation should use configured max heap size of 12 GB
> instead which will show the actual status of the node heap usage.
> !image-2026-04-01-15-52-26-883.png!
>
> !image-2026-04-01-15-54-29-256.png!
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