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https://issues.apache.org/jira/browse/HDFS-11806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doris Gu updated HDFS-11806:
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Affects Version/s: 2.9.0
> 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: 2.8.0, 2.9.0, 3.0.0-alpha2, 3.1.0
> Reporter: Doris Gu
> Attachments: HDFS-11806.001.patch, HDFS-11806.002.patch
>
>
> 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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