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https://issues.apache.org/jira/browse/RATIS-1982?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang reassigned RATIS-1982:
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Assignee: Wei-Chiu Chuang
> Optimize Ratis Client LEADER_CACHE heap allocation
> --------------------------------------------------
>
> Key: RATIS-1982
> URL: https://issues.apache.org/jira/browse/RATIS-1982
> Project: Ratis
> Issue Type: Improvement
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Major
> Attachments: hbase_rs-ccycloud-2.weichiu.root.comops.site.html
>
>
> [^hbase_rs-ccycloud-2.weichiu.root.comops.site.html]
> Running HBase RegionServer as an Ozone/Ratis client, I noticed more than 20%
> of heap allocation (chart uploaded in the attachment) is spent updating
> LEADER_CACHE guava cache in RaftClientImpl. In this application, client
> receives hundreds to thousands of relies per second.
> Supposedly this cache doesn't change very often. Perhaps we can reduce heap
> allocation by skipping the cache update when the existing object matches the
> value to be inserted.
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