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https://issues.apache.org/jira/browse/HBASE-18127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16190120#comment-16190120
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ramkrishna.s.vasudevan commented on HBASE-18127:
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Checked the patch. Seems to be doing for mutate flow as others have pionted out
already. Something of this sort was wanted long back in one of the old
projects that we worked. May be just change the JIRA to specify this is mainly
for the mutate flow?
> 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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