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https://issues.apache.org/jira/browse/HDFS-9882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15182559#comment-15182559
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Hua Liu commented on HDFS-9882:
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Hi [~arpiagariu]
Since NumOps and AvgTime are appended to the metric name,
HeartbeatTotalTImeAvgTime would look verbose and HeartbeatTotalTimeNumOps would
appear confusing. We think heartbeatsTotal may be a good alternative.
And we described this new metric in metrics.md. Please take a look at it and
submit if you see fit.
Thanks,
Hua
> 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-HDFS-9882.Add-heartbeatsTotal-in-Datanode-metrics.patch,
> 0002-HDFS-9882.Add-heartbeatsTotal-in-Datanode-metrics.patch,
> 0003-HDFS-9882.Add-heartbeatsTotal-in-Datanode-metrics.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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