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https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13799536#comment-13799536
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Akira AJISAKA commented on HDFS-5167:
-------------------------------------
Thanks for taking this issue, [~ozawa].
I built with your patch and found the metrics name was 'rpc'.
The following fix is good to me.
{code}
--- registry = new MetricsRegistry("rpc");
+++ registry = new MetricsRegistry(name);
{code}
I revised the patch, built, and confirmed the metrics name was
'RetryCacheNamenode'.
> 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
> Assignee: Tsuyoshi OZAWA
> Priority: Minor
> Attachments: HDFS-5167.1.patch, HDFS-5167.2.patch, HDFS-5167.3.patch,
> HDFS-5167.4.patch, HDFS-5167.5.patch, HDFS-5167.6.patch, HDFS-5167.6.patch,
> HDFS-5167.7.patch
>
>
> It will be helpful to have metrics in NameNode about the retry cache, such as
> the retry count etc.
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