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https://issues.apache.org/jira/browse/HDFS-5350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13845805#comment-13845805
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Jimmy Xiang commented on HDFS-5350:
-----------------------------------
I tested the patch on my cluster. Here is the new metrics from the jmx page:
{noformat}
"GetImageNumOps" : 56,
"GetImageAvgTime" : 3.75,
"PutImageNumOps" : 51,
"PutImageAvgTime" : 80.0
{noformat}
> 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
> Priority: Minor
> Fix For: 3.0.0
>
> Attachments: trunk-5350.patch
>
>
> 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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