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https://issues.apache.org/jira/browse/HBASE-4210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13543729#comment-13543729
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Anoop Sam John commented on HBASE-4210:
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@Ram the issues that we found I will try to address in another Jira. That was
as a result of we trying to do a cross region transaction kinda thing.
Here I mean the row locks dead lock. As the preposed hooks will be called after
acquiring the row locks and within the CP implementation one tries to acquire
another row lock, there is chance for dead lock. Well we will document this
clearly warning the users. :)
> 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
> Reporter: Lars Hofhansl
> Assignee: Anoop Sam John
> Priority: Minor
>
> 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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