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https://issues.apache.org/jira/browse/HDFS-9882?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hua Liu resolved HDFS-9882.
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Resolution: Fixed
> Add heartbeatsTotal in Datanode metrics
> ---------------------------------------
>
> Key: HDFS-9882
> URL: https://issues.apache.org/jira/browse/HDFS-9882
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: datanode
> Affects Versions: 2.7.2
> Reporter: Hua Liu
> Assignee: Hua Liu
> Priority: Minor
> Attachments: 0001-Add-heartbeatsTotal-metric.patch
>
>
> Heartbeat latency only reflects the time spent on generating reports and
> sending reports to NN. When heartbeats are delayed due to processing
> commands, this latency does not help investigation. I would like to propose
> to add another metric counter to show the total time.
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