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https://issues.apache.org/jira/browse/HBASE-14082?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Enis Soztutar updated HBASE-14082:
----------------------------------
Resolution: Fixed
Fix Version/s: 1.3.0
1.2.0
Status: Resolved (was: Patch Available)
I have committed this to 1.2+. Thanks Lei for the patch.
> Add replica id to JMX metrics names
> -----------------------------------
>
> Key: HBASE-14082
> URL: https://issues.apache.org/jira/browse/HBASE-14082
> Project: HBase
> Issue Type: Improvement
> Components: metrics
> Reporter: Lei Chen
> Assignee: Lei Chen
> Fix For: 2.0.0, 1.2.0, 1.3.0
>
> Attachments: 14082-v6.patch, HBASE-14082-v1.patch,
> HBASE-14082-v2.patch, HBASE-14082-v3.patch, HBASE-14082-v4.patch,
> HBASE-14082-v5.patch
>
>
> Today, via JMX, one cannot distinguish a primary region from a replica. A
> possible solution is to add replica id to JMX metrics names. The benefits may
> include, for example:
> # Knowing the latency of a read request on a replica region means the first
> attempt to the primary region has timeout.
> # Write requests on replicas are due to the replication process, while the
> ones on primary are from clients.
> # In case of looking for hot spots of read operations, replicas should be
> excluded since TIMELINE reads are sent to all replicas.
> To implement, we can change the format of metrics names found at
> {code}Hadoop->HBase->RegionServer->Regions->Attributes{code}
> from
> {code}namespace_<namespace>_table_<tablename>_region_<regionname>_metric_<metricname>{code}
> to
> {code}namespace_<namespace>_table_<tablename>_region_<regionname>_replicaid_<replicaid>_metric_<metricname>{code}
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