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https://issues.apache.org/jira/browse/GEODE-7483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16978790#comment-16978790
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Jacob Barrett commented on GEODE-7483:
--------------------------------------
Sorry, it was meant as a note to someone who might want to pick this ticket up
that the benchmarks can be used with Z. Yes work needs to be done for Geode to
fully support the Z collector when performing eviction and other resources
management features. Also, I will edit my comment to not mention Shenandoah, I
copied it from another ticket and didn't update it correctly.
> Add support for new Oracle ZGC garbage collector
> ------------------------------------------------
>
> Key: GEODE-7483
> URL: https://issues.apache.org/jira/browse/GEODE-7483
> Project: Geode
> Issue Type: Improvement
> Components: client/server
> Reporter: Alex Dubrouski
> Priority: Major
>
> Good afternoon,
> We have a POC Geode cluster and few regions have pretty short TTLs for keys,
> thus sometimes we experience spikes in garbage collection pauses due to
> eviction of large amount of weak references. I tried to switch cluster to
> Oracle new ZGC (it supposed to process weak roots concurrently, so
> theoretically there will be trade off long pauses for CPU usage spikes), but
> I am getting this error when starting a server:
> {code:java}
> [error 2019/11/20 13:01:58.302 PST <main> tid=0x1] No tenured pools found.
> Known pools are: [(Name=CodeHeap 'non-nmethods';Type=Non-heap
> memory;UsageThresholdSupported=true), (Name=Metaspace;Type=Non-heap
> memory;UsageThresholdSupported=true), (Name=ZHeap;Type=Heap
> memory;UsageThresholdSupported=true), (Name=CodeHeap 'profiled
> nmethods';Type=Non-heap memory;UsageThresholdSupported=true), (Name=CodeHeap
> 'non-profiled nmethods';Type=Non-heap memory;UsageThresholdSupported=true)]
> {code}
> (OpenJDK v13.0.1)
> Could you please implement support for new generation of low pause garbage
> collectors?
> Thanks.
>
> Regards,
> Alex Dubrouski
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