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From "Abhishek Singh Chouhan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-18127) Enable state to be passed between the region observer coprocessor hook calls
Date Tue, 01 Aug 2017 09:31:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-18127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Abhishek Singh Chouhan updated HBASE-18127:
-------------------------------------------
    Status: Patch Available  (was: Open)

> Enable state to be passed between the region observer coprocessor hook calls
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-18127
>                 URL: https://issues.apache.org/jira/browse/HBASE-18127
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Lars Hofhansl
>            Assignee: Abhishek Singh Chouhan
>         Attachments: HBASE-18127.master.001.patch, HBASE-18127.master.002.patch
>
>
> Right now a RegionObserver can only statically implement one or the other. In scenarios
where we need to work sometimes on the single postPut and postDelete hooks and sometimes on
the batchMutate hooks, there is currently no place to convey this information to the single
hooks. I.e. the work has been done in the batch, skip the single hooks.
> There are various solutions:
> 1. Allow some state to be passed _per operation_.
> 2. Remove the single hooks and always only call batch hooks (with a default wrapper for
the single hooks).
> 3. more?
> [~apurtell], what we had discussed a few days back.



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