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https://issues.apache.org/jira/browse/HBASE-2146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12802458#action_12802458
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Gary Helmling commented on HBASE-2146:
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Lars,
It looks like these extra metrics are dynamically created and added to the
registry via the HBaseRPCMetrics.inc() and subsequently create() and get()
methods. The org.apache.hadoop.metrics.util.MetricsDynamicMBeanBase class will
update the MBean info if the underlying registry changes (see
updateMbeanInfoIfMetricsListChanged()), but maybe this isn't being invoked
everywhere it's needed?
The .inc() method is being called in HBaseRPC.Server.call() with the call
method name. So it looks like that's how they're getting populated. -- As an
aside it looks like rpcQueueTIme and rpcProcessingTime are incremented twice
there is debug logging is enabled(!) -- I'll try to test this out as well a
bit later.
> RPC related metrics are missing in 0.20.3 since recent changes
> --------------------------------------------------------------
>
> Key: HBASE-2146
> URL: https://issues.apache.org/jira/browse/HBASE-2146
> Project: Hadoop HBase
> Issue Type: Bug
> Affects Versions: 0.20.3
> Reporter: Lars George
> Fix For: 0.20.4, 0.21.0
>
> Attachments: jconsole-hbase-rpc.png, jmx-diffs.txt
>
>
> Since the recent change to the Metrics setup it seems that the RPC related
> stats have been completely dropped. See attached files for details.
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