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Andrew Purtell commented on HBASE-22623: ---------------------------------------- I think we’re just having a bit of a miscommunication. I read Duo’s comment as a suggestion to move the current WALObserver method over to RegionObserver. However I believe that the wrong approach because it breaks both interfaces. At least with the current patch we are binary compatible and source incompatible only in RegionObserver. I plan to commit it tomorrow > Add RegionObserver coprocessor hook for preWALAppend > ---------------------------------------------------- > > Key: HBASE-22623 > URL: https://issues.apache.org/jira/browse/HBASE-22623 > Project: HBase > Issue Type: New Feature > Reporter: Geoffrey Jacoby > Assignee: Geoffrey Jacoby > Priority: Major > Fix For: 3.0.0, 1.5.0, 2.3.0 > > > While many coprocessor hooks expose the WALEdit to implementing coprocs, > there aren't any that expose the WALKey before it's created and added to the > WALEntry. > It's sometimes useful for coprocessors to be able to edit the WALKey, for > example to add extended attributes using the fields to be added in > HBASE-22622. -- This message was sent by Atlassian JIRA (v7.6.14#76016)