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https://issues.apache.org/jira/browse/HBASE-10169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13901228#comment-13901228
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Jingcheng Du commented on HBASE-10169:
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Thanks [~ghelmling], the alternative patch looks good for me.
But we should have one more feature for the implementation. The coprocessor
could be executed within a arbitrary long time, we have to add concurrent
execution for these batch calls for regions, In each region, the action could
be executed one by one, and among regions, we need those calls to be executed
concurrently. Please advise. Thanks!
> Batch coprocessor
> -----------------
>
> Key: HBASE-10169
> URL: https://issues.apache.org/jira/browse/HBASE-10169
> Project: HBase
> Issue Type: Sub-task
> Components: Coprocessors
> Affects Versions: 0.99.0
> Reporter: Jingcheng Du
> Assignee: Jingcheng Du
> Attachments: Batch Coprocessor Design Document.docx,
> HBASE-10169-V2.patch, HBASE-10169-V3.patch, HBASE-10169-V3.patch,
> HBASE-10169-V4.patch, HBASE-10169-V5.patch, HBASE-10169-alternate-2.patch,
> HBASE-10169-alternate-3.patch, HBASE-10169-alternate-4.patch,
> HBASE-10169-alternate.patch, HBASE-10169.patch
>
>
> This is designed to improve the coprocessor invocation in the client side.
> Currently the coprocessor invocation is to send a call to each region. If
> there’s one region server, and 100 regions are located in this server, each
> coprocessor invocation will send 100 calls, each call uses a single thread in
> the client side. The threads will run out soon when the coprocessor
> invocations are heavy.
> In this design, all the calls to the same region server will be grouped into
> one in a single coprocessor invocation. This call will be spread into each
> region in the server side.
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