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https://issues.apache.org/jira/browse/HBASE-6870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13461965#comment-13461965
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Andrew Purtell commented on HBASE-6870:
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A coprocessorExec to an incorrect (cached) location will cause an exception to
be sent back to the client, processExecs does not do transparent relocation. I
don't think we want this. The patch looks ok without the cache.
> HTable#coprocessorExec always scan the whole table
> ---------------------------------------------------
>
> Key: HBASE-6870
> URL: https://issues.apache.org/jira/browse/HBASE-6870
> Project: HBase
> Issue Type: Improvement
> Components: Coprocessors
> Affects Versions: 0.94.1
> Reporter: chunhui shen
> Assignee: chunhui shen
> Attachments: HBASE-6870.patch, HBASE-6870v2.patch, HBASE-6870v3.patch
>
>
> In current logic, HTable#coprocessorExec always scan the whole table, its
> efficiency is low and will affect the Regionserver carrying .META. under
> large coprocessorExec requests
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