Chen Liang created HDFS-14785:
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Summary: [SBN read] Change client logging to be less aggressive
Key: HDFS-14785
URL: https://issues.apache.org/jira/browse/HDFS-14785
Project: Hadoop HDFS
Issue Type: Sub-task
Components: hdfs
Affects Versions: 3.1.2, 3.2.0, 2.10.0, 3.3.0
Reporter: Chen Liang
Assignee: Chen Liang
Currently {{ObserverReadProxyProvider}} logs a lot of information. There are
states that are acceptable but {{ObserverReadProxyProvider}} still log an
overwhelmingly large amount of messages. One example is that, if some NN runs
an older version, the lack of {{getHAServiceState}} method in older version NN
will lead to a Exception prints on every single call.
We can change them to debug log. This should be minimum risk, because this is
only client side, we can always enable the log back by changing to DEBUG log
level on client side.
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