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https://issues.apache.org/jira/browse/HBASE-19035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16209110#comment-16209110
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Duo Zhang commented on HBASE-19035:
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[~stack] [~apurtell] I think this is related to whether we should let CP users
to modify the metrics? Seems for other operations such as get and put, the
metrics will be updated at region level so no problem, but for scan it is
updated in RSRpcServices.
> Miss metrics when coprocessor use region scanner to read data
> -------------------------------------------------------------
>
> Key: HBASE-19035
> URL: https://issues.apache.org/jira/browse/HBASE-19035
> Project: HBase
> Issue Type: Bug
> Reporter: Guanghao Zhang
>
> Region interface is exposed to coprocessor. So coprocessor use getScanner to
> get a region scanner to read data. But the scan metrics was only updated in
> region server level. So we will miss some scan metrics for the read from
> coprocessor.
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