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https://issues.apache.org/jira/browse/HDFS-17809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDFS-17809:
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Labels: pull-request-available (was: )
> hdfs diskbalancer -help plan or other commands are not giving correct
> explanation in hadoop version 3.4.1
> ---------------------------------------------------------------------------------------------------------
>
> Key: HDFS-17809
> URL: https://issues.apache.org/jira/browse/HDFS-17809
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: diskbalancer
> Affects Versions: 3.4.1
> Reporter: Raju Balpande
> Priority: Major
> Labels: pull-request-available
>
> For HDFS with hadoop version 3.4.1, facing problem in help for diskbalancer
> commands.
> {code:java}
> [[email protected] ~]# hdfs diskbalancer -help query
> usage: hdfs diskbalancer [command] [options]DiskBalancer distributes data
> evenly between different disks on a
> datanode. DiskBalancer operates by generating a plan, that tells datanode
> how to move data between disks. Users can execute a plan by submitting it
> to the datanode.
> To get specific help on a particular command please run hdfs diskbalancer
> -help <command>.
> --help valid commands are plan | execute | query | cancel | report
> {code}
> I tried similar for all the commands l{*}ike plan, execute, report{*} and
> getting same response as if it is ignoring any text after help. Also tried
> with *--help* as well.
> {code:java}
> [[email protected] ~]# hdfs diskbalancer --help
> execute
> usage: hdfs diskbalancer [command] [options]DiskBalancer distributes data
> evenly between different disks on a
> datanode. DiskBalancer operates by generating a plan, that tells datanode
> how to move data between disks. Users can execute a plan by submitting it
> to the datanode.
> To get specific help on a particular command please run hdfs diskbalancer
> -help <command>.
> --help valid commands are plan | execute | query | cancel | report
> {code}
> Whereas the same commands works fine in *Hadoop version 3.1.1*
> {code:java}
> [[email protected] ~]# hdfs diskbalancer -help query
> usage: hdfs diskbalancer -query <hostname> [options]
> Query Plan queries a given data node about the current state of disk
> balancer execution.
> --query <arg> Queries the disk balancer status of a given datanode.
> --v Prints details of the plan that is being executed on
> the node.Query command retrievs the plan ID and the
> current running state. {code}
> Can someone please look into this.
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