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https://issues.apache.org/jira/browse/HDDS-10146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hongbing Wang updated HDDS-10146:
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Summary: Improve KeyValueContainer ReadWriteLock Performance (was: Improve
KeyValueContainer WriteLock Performance)
> Improve KeyValueContainer ReadWriteLock Performance
> ---------------------------------------------------
>
> Key: HDDS-10146
> URL: https://issues.apache.org/jira/browse/HDDS-10146
> Project: Apache Ozone
> Issue Type: Improvement
> Components: DN
> Affects Versions: 1.4.0
> Reporter: Hongbing Wang
> Priority: Major
> Attachments: dn.chunkreader-waiting.jstack
>
>
> Datanode read performance degradation due to KeyValueContainer waiting
> readLock for a long time. Lock competition becomes especially intense during
> high concurrent write operations, such as large-scale data deletions or nodes
> decommission. This can result in all ChunkReader threads being in waiting for
> lock state. A jstack as: [^dn.chunkreader-waiting.jstack]
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