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https://issues.apache.org/jira/browse/HBASE-4210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13551386#comment-13551386
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Andrew Purtell commented on HBASE-4210:
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An option here would be to allocate an internal identifier for every operation,
corresponding to the user RPC, and then no matter how many units of work that
is broken down internally the RPC ID would be carried through. Then there could
be a CP hook at step 3 which announces processing on a given RPC (batch). The
other hooks will get the ID somehow so the CP can correlate. Then finally at
step 8 an upcall notifying that processing the given RPC ID is completed (or
errored out).
> Allow coprocessor to interact with batches per region sent from a client(?)
> ---------------------------------------------------------------------------
>
> Key: HBASE-4210
> URL: https://issues.apache.org/jira/browse/HBASE-4210
> Project: HBase
> Issue Type: New Feature
> Affects Versions: 0.94.0
> Reporter: Lars Hofhansl
> Assignee: Anoop Sam John
> Priority: Minor
> Fix For: 0.96.0, 0.94.5
>
>
> Currently the coprocessor write hooks - {pre|post}{Put|Delete} - are strictly
> one row|cell operations.
> It might be a good idea to allow a coprocessor to deal with batches of puts
> and deletes as they arrive from the client.
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