Doris Gu created HDFS-11806:
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Summary: hdfs journalnode command should support meaningful --help
Key: HDFS-11806
URL: https://issues.apache.org/jira/browse/HDFS-11806
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 3.0.0-alpha2
Reporter: Doris Gu
Most (sub) commands support -help or -h options for detailed help while hdfs
journalnode does not. What's worse, when you use "hdfs journalnode -h" to
get some help, journalnode daemon starts straightly.
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