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https://issues.apache.org/jira/browse/HBASE-6870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13617635#comment-13617635
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Nicolas Liochon commented on HBASE-6870:
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I'm bumping the priority a little, because imho it means that anything that
happen on .meta. will have a strong impact for anyone using coprocessors. I can
help if needed of course.
> 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, 0.95.0, 0.96.0
> Reporter: chunhui shen
> Assignee: chunhui shen
> Attachments: HBASE-6870.patch, HBASE-6870-testPerformance.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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