[jira] [Commented] (HBASE-11653) RegionObserver coprocessor cannot override KeyValue values in prePut()

["Gary Helmling (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-11653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14083241#comment-14083241 ] 

Gary Helmling commented on HBASE-11653:
---------------------------------------

This is only present in 0.94, since 0.96+ have refactored the put() path to go through doBatchMutate().

> RegionObserver coprocessor cannot override KeyValue values in prePut()
> ----------------------------------------------------------------------
>
>                 Key: HBASE-11653
>                 URL: https://issues.apache.org/jira/browse/HBASE-11653
>             Project: HBase
>          Issue Type: Bug
>          Components: Coprocessors
>    Affects Versions: 0.94.21
>            Reporter: Gary Helmling
>            Assignee: Gary Helmling
>            Priority: Critical
>
> Due to a bug in {{HRegion.internalPut()}}, any modifications that a {{RegionObserver}} makes to a Put's family map in the {{prePut()}} hook are lost.
> This prevents coprocessors from modifying the values written by a {{Put}}.



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