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https://issues.apache.org/jira/browse/GEODE-7483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18018001#comment-18018001
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ASF subversion and git services commented on GEODE-7483:
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Commit bd38e8e71f9d07fb0d4042065d13b40cf02efef2 in geode's branch
refs/heads/support/1.15 from Henri Tremblay
[ https://gitbox.apache.org/repos/asf?p=geode.git;h=bd38e8e71f ]
GEODE-7483: Add Generational ZGC (#7896)
(cherry picked from commit 93234a5e9aea25c7ef80cd2ec337e0605871af48)
> 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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