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https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13759952#comment-13759952
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Tsuyoshi OZAWA commented on HDFS-5167:
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Thank you, Jing. My proposal is that we should add a unit test in this jira
because it is easier to track the change of source code.
I'll update my patch with HDFS-5118's test framework when HDFS-5118 is once
committed.
> Add metrics about the NameNode retry cache
> ------------------------------------------
>
> Key: HDFS-5167
> URL: https://issues.apache.org/jira/browse/HDFS-5167
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, namenode
> Affects Versions: 3.0.0
> Reporter: Jing Zhao
> Priority: Minor
> Attachments: HDFS-5167.1.patch
>
>
> It will be helpful to have metrics in NameNode about the retry cache, such as
> the retry count etc.
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