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https://issues.apache.org/jira/browse/HBASE-14082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14660839#comment-14660839
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Nick Dimiduk commented on HBASE-14082:
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[~enis]'s proposal should work, and I believe we've followed this pattern in
other places related to replicas (tacking on the replicaId when it's > 0). At
least for OpenTSDB users, this will [effectively
result|https://github.com/OpenTSDB/tcollector/blob/master/collectors/0/hbase_regionserver.py#L29]
in new regions showing up of the form {{aaaa_replicaid_x}}. I don't think it's
native tools will allow for rollups by logical region though.
[~leochen4891]'s most recent suggestion seems also fine, but it means replica
metrics will always be aggregated by OpenTSDB (if I'm understanding this
correctly).
Pros/cons of these scenarios [~eclark], [~clayb], [~tsuna], [~phobos182],
[~toffer] ?
> 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
> Attachments: HBASE-14082-v1.patch, HBASE-14082-v2.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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