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https://issues.apache.org/jira/browse/HDFS-1943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13039367#comment-13039367
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Jakob Homan commented on HDFS-1943:
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+1
> fail to start datanode while start-dfs.sh is executed by root user
> ------------------------------------------------------------------
>
> Key: HDFS-1943
> URL: https://issues.apache.org/jira/browse/HDFS-1943
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: scripts
> Affects Versions: 0.23.0
> Reporter: Wei Yongjun
> Priority: Blocker
> Fix For: 0.23.0
>
> Attachments: HDFS-1943.patch
>
>
> When start-dfs.sh is run by root user, we got the following error message:
> # start-dfs.sh
> Starting namenodes on [localhost ]
> localhost: namenode running as process 2556. Stop it first.
> localhost: starting datanode, logging to
> /usr/hadoop/hadoop-common-0.23.0-SNAPSHOT/bin/../logs/hadoop-root-datanode-cspf01.out
> localhost: Unrecognized option: -jvm
> localhost: Could not create the Java virtual machine.
> The -jvm options should be passed to jsvc when we starting a secure
> datanode, but it still passed to java when start-dfs.sh is run by root
> while secure datanode is disabled. This is a bug of bin/hdfs.
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