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https://issues.apache.org/jira/browse/HADOOP-14599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16068807#comment-16068807
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Daryn Sharp commented on HADOOP-14599:
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The ipc layer has engines to handle both protobufs and writables so it's not
safe to cast to a protobuf.
What would really be nice:
# split the queue and processing time updates
# float the queue time update up to when the call is extracted from the queue
in {{Handler#run}} – avoids updating both engines
# update the processing time in the finally
> RPC queue time metrics omit timed out clients
> ---------------------------------------------
>
> Key: HADOOP-14599
> URL: https://issues.apache.org/jira/browse/HADOOP-14599
> Project: Hadoop Common
> Issue Type: Bug
> Components: metrics, rpc-server
> Affects Versions: 2.7.0
> Reporter: Ashwin Ramesh
> Assignee: Ashwin Ramesh
> Attachments: HADOOP-14599.001.patch
>
>
> RPC average queue time metrics will now update even if the client who made
> the call timed out while the call was in the call queue.
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