Arpit Agarwal created HDFS-9941:
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Summary: Do not log StandbyException on NN, other minor logging
fixes
Key: HDFS-9941
URL: https://issues.apache.org/jira/browse/HDFS-9941
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 2.8.0
Reporter: Arpit Agarwal
Assignee: Arpit Agarwal
The NameNode can skip logging StandbyException messages. These are seen
regularly in normal operation and convey no useful information.
We no longer log the locations of newly allocated blocks in 2.8.0. The DN IDs
can be useful for debugging so let's add that back.
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