Doris Gu created HDFS-11753:
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Summary: 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
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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