Jing Zhao created HDFS-5167:
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Summary: 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
Affects Versions: 3.0.0
Reporter: Jing Zhao
Priority: Minor
It will be helpful to have metrics in NameNode about the retry cache, such as
the retry count etc.
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