[
https://issues.apache.org/jira/browse/GEODE-7483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16979428#comment-16979428
]
Alex Dubrouski edited comment on GEODE-7483 at 11/21/19 6:04 PM:
-----------------------------------------------------------------
Thanks a lot Anthony.
I tried running as:
{code:java}
start server --group=groups --name=${SYS_HOST_NAME}-server1
--bind-address=XX.XX.XX.XX --max-connections=1500 --server-port=10001
--properties-file=/home/geode/gemfire.properties --J=-Xmx16G --J=-Xms16G
--J=-XX:+UnlockExperimentalVMOptions --J=-XX:+UnlockDiagnosticVMOptions
--J=-XX:+UseZGC --J=-XX:+AlwaysPreTouch --J=-XX:ZStatisticsInterval=600
--J=-Dgemfire.ResourceManager.HEAP_POOL=ZHeap
--J=-Xlog:gc*:file=gc-%p-%t.log:uptime,time:filecount=3,filesize=10m
{code}
and error went away. We will load testing in next few days to compare
performance ShenandoahGC vs ZGC.
Thanks
was (Author: adubrouski):
Thanks a lot Anthony, I will try.
> 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
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
