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From "Doris Gu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11806) hdfs journalnode command should support meaningful --help
Date Thu, 11 May 2017 08:34:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16006086#comment-16006086
] 

Doris Gu commented on HDFS-11806:
---------------------------------

{quote}hdfs@localhost:~/version/hadoop-3.0.0-alpha2/bin$ ./hdfs journalnode -h
2017-05-11 16:30:26,128 INFO server.JournalNode: STARTUP_MSG: 
/************************************************************
STARTUP_MSG: Starting JournalNode
STARTUP_MSG:   user = hdfs
STARTUP_MSG:   host = localhost/127.0.0.1
STARTUP_MSG:   args = [-h]
STARTUP_MSG:   version = 3.0.0-alpha2{quote}

> 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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