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https://issues.apache.org/jira/browse/HBASE-7099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13491565#comment-13491565
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Kannan Muthukkaruppan commented on HBASE-7099:
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We were thinking of this as an "emit/write" time compaction hook. It won't be
in the general "read" path, but in compactStores(). By the time a value gets
here, TTL purging etc. would have already been done. Whatever survives, and is
about to be written to the output (of compaction) file-- this hook will give a
chance to intercept & transform/skip the value portion of the KV.
> [89-fb] Create compaction hooks
> --------------------------------
>
> Key: HBASE-7099
> URL: https://issues.apache.org/jira/browse/HBASE-7099
> Project: HBase
> Issue Type: New Feature
> Reporter: Adela Maznikar
> Assignee: Adela Maznikar
>
> Create compaction hooks which should be used to modify the value of the KV
> during compaction. The possible modifications would include: skipping the KV,
> modifying the value of the KV in the desired format, leaving the value as it
> was.
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