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https://issues.apache.org/jira/browse/HBASE-4210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13544608#comment-13544608
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Anoop Sam John commented on HBASE-4210:
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Lars yes that is what confusing me too... Passing the index looks very odd....
As of now in our implementation we have created the a new array and pass the
mutation in that batch.. Yes agree with you just for hook recreating the array
and dealing with some steps is expensive :( I will make a simple perf test
with just passing the existing array with start and end index... Just for
testing and will see how much diff it will make.. This is a critical path that
is my worry from beginning.. :(
> 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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