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https://issues.apache.org/jira/browse/HBASE-11870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14118968#comment-14118968
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Andrew Purtell commented on HBASE-11870:
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Is this a (partial) dup of HBASE-9794?
bq. Create a new Cell impl which wraps the original Cell and fro the non tag
parts just refer this old buffer
This would be one case of HBASE-9794 where the original cell is in one buffer
fragment and the modified tags are placed into a second.
> Optimization : Avoid copy of key and value for tags addition in AC and VC
> -------------------------------------------------------------------------
>
> Key: HBASE-11870
> URL: https://issues.apache.org/jira/browse/HBASE-11870
> Project: HBase
> Issue Type: Improvement
> Components: Performance, security
> Affects Versions: 0.98.0
> Reporter: Anoop Sam John
> Assignee: Anoop Sam John
>
> In AC and VC we have to add the per cell ACL tags/ visibility tags to Cells.
> We get KeyValue objects and which need one backing array with key,value and
> tags. So in order to add a tag we have to recreate buffer the and copy the
> entire key , value and tags. We can avoid this
> Create a new Cell impl which wraps the original Cell and fro the non tag
> parts just refer this old buffer.
> This will contain a byte[] state for the tags part.
> Also we have to ensure we deal with Cells n write path not KV.
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