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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-18127) Enable state to be passed between the region observer coprocessor hook calls
Date Mon, 31 Jul 2017 17:33:00 GMT

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

Andrew Purtell updated HBASE-18127:
-----------------------------------
    Summary: Enable state to be passed between the region observer coprocessor hook calls
 (was: Allow regionobserver to optionally skip postPut/postDelete when postBatchMutate was
called)

> 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
>
>
> 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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