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https://issues.apache.org/jira/browse/HDFS-5350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13844884#comment-13844884
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Jimmy Xiang commented on HDFS-5350:
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Instead of some sliding window metrics, I will add two MutableRate metrics for
fsimage upload and download latency. From these information, we can tell if
fsimage transfer is normal or not too.
> Name Node should report fsimage transfer time as a metric
> ---------------------------------------------------------
>
> Key: HDFS-5350
> URL: https://issues.apache.org/jira/browse/HDFS-5350
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Reporter: Rob Weltman
> Assignee: Jimmy Xiang
>
> If the (Secondary) Name Node reported fsimage transfer times (perhaps the
> last ten of them), monitoring tools could detect slowdowns that might
> jeopardize cluster stability.
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