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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HBASE-18127) Enable state to be passed between the region observer coprocessor hook calls
Date Fri, 24 Nov 2017 06:06:00 GMT

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ramkrishna.s.vasudevan edited comment on HBASE-18127 at 11/24/17 6:05 AM:
--------------------------------------------------------------------------

How will the lifecycle be then (in case we need to hand over to diff thread pools that interacts
with the CPs)?


was (Author: ram_krish):
How will the lifecycle be then?

> 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, HBASE-18127.master.002.patch,
HBASE-18127.master.003.patch, HBASE-18127.master.004.patch, HBASE-18127.master.005.patch,
HBASE-18127.master.005.patch, HBASE-18127.master.006.patch
>
>
> Allow regionobserver to optionally skip postPut/postDelete when postBatchMutate was called.
> 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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