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https://issues.apache.org/jira/browse/HBASE-27146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang updated HBASE-27146:
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Status: Patch Available (was: In Progress)
> Avoid CellUtil.cloneRow in MetaCellComparator
> ---------------------------------------------
>
> Key: HBASE-27146
> URL: https://issues.apache.org/jira/browse/HBASE-27146
> Project: HBase
> Issue Type: Improvement
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
>
> In HBASE-26981, a flame graph shows that we spend a lot of CPUs in
> CellUtils.cloneXXX.
> Since we need to split the row to different parts when comparing, we can not
> use ByteBuffer compare directly, but as least, we should try to avoid copy
> the content when the Cell is stored in a ByteBuffer.
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