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https://issues.apache.org/jira/browse/HADOOP-16266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16832065#comment-16832065
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Erik Krogen commented on HADOOP-16266:
--------------------------------------

Looking at the {{TestRPC}} failure in the v008 patch, I realized that the 
additional test cases I added to assert on {{RpcQueueTimeAvgTime}} and 
{{RpcProcessingTimeAvgTime}} will be flaky because the numbers are measured in 
milliseconds, so they may round down to 0. I removed those in v010.

> Add more fine-grained processing time metrics to the RPC layer
> --------------------------------------------------------------
>
>                 Key: HADOOP-16266
>                 URL: https://issues.apache.org/jira/browse/HADOOP-16266
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc
>            Reporter: Christopher Gregorian
>            Assignee: Christopher Gregorian
>            Priority: Minor
>              Labels: rpc
>         Attachments: HADOOP-16266.001.patch, HADOOP-16266.002.patch, 
> HADOOP-16266.003.patch, HADOOP-16266.004.patch, HADOOP-16266.005.patch, 
> HADOOP-16266.006.patch, HADOOP-16266.007.patch, HADOOP-16266.008.patch, 
> HADOOP-16266.009.patch, HADOOP-16266.010.patch
>
>
> Splitting off of HDFS-14403 to track the first part: introduces more 
> fine-grained measuring of how a call's processing time is split up.



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