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https://issues.apache.org/jira/browse/HDFS-11753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doris Gu updated HDFS-11753:
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Attachment: HDFS-11753.001.patch
> Make Some Enhancements about JournalNode Daemon
> ------------------------------------------------
>
> Key: HDFS-11753
> URL: https://issues.apache.org/jira/browse/HDFS-11753
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: journal-node
> Affects Versions: 3.0.0-alpha2
> Reporter: Doris Gu
> Attachments: HDFS-11753.001.patch
>
>
> 1.Add support -h. Right now, if I use *hdfs journalnode -h* , I straightly
> start journalnode daemon. But generally speakingļ¼ I just want to look at the
> usage.
> 2.Add exception catch and termination. If I start journalnode with different
> directions stored pids, I get servel journalnode daemons which I don't want
> for I config the same port.
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