there is no error message displayed while using the command "daemonlog
-setlevel" with illegal level
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Key: HADOOP-7434
URL: https://issues.apache.org/jira/browse/HADOOP-7434
Project: Hadoop Common
Issue Type: Improvement
Affects Versions: 0.23.0
Reporter: 严金双
While using the command with inexistent "level" like "nomsg", there is no error
message displayed,and the level "DEBUG" is set by default.
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