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https://issues.apache.org/jira/browse/HADOOP-13285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiaoyu Yao updated HADOOP-13285:
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Attachment: HADOOP-13285.00.patch
> DecayRpcScheduler MXBean should only report decayed CallVolumeSummary
> ---------------------------------------------------------------------
>
> Key: HADOOP-13285
> URL: https://issues.apache.org/jira/browse/HADOOP-13285
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Reporter: Namit Maheshwari
> Assignee: Xiaoyu Yao
> Attachments: HADOOP-13285.00.patch
>
>
> HADOOP-13197 added non-decayed call metrics in metrics2 source for
> DecayedRpcScheduler. However, CallVolumeSummary in MXBean was affected
> unexpectedly to include both decayed and non-decayed call volume. The root
> cause is Jackson ObjectMapper simply serialize all the content of the
> callCounts map which contains both non-decayed and decayed counter after
> HADOOP-13197. This ticket is opened to fix the CallVolumeSummary in MXBean to
> include only decayed call volume for backward compatibility and add unit test
> for DecayRpcScheduler MXBean to catch this in future.
> CallVolumeSummary JMX example before HADOOP-13197
> {code}
> "CallVolumeSummary" : "{\"hbase\":1,\"mapred\":1}"
> {code}
> CallVolumeSummary JMX example after HADOOP-13197
> {code}
> "CallVolumeSummary" : "{\"hrt_qa\":[1,2]}"
> {code}
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