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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10681) DiskBalancer: query command should report Plan file path apart from PlanID
Date Wed, 27 Jul 2016 05:47:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10681?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15395087#comment-15395087
] 

Andrew Wang commented on HDFS-10681:
------------------------------------

Hey Manoj, the way the precommit works, it looks for a feature branch name in the patch's
filename and tries to apply and run it against that specific branch.

In this case, since the file has "HDFS-1312" in the name, it's trying to run against that
branch. However, 1312 has been merged to trunk, and it looks like the docker image in that
branch has also gone stale.

Try naming the patch simply like "HDFS-10681.001.patch" and it should work.

> DiskBalancer: query command should report Plan file path apart from PlanID
> --------------------------------------------------------------------------
>
>                 Key: HDFS-10681
>                 URL: https://issues.apache.org/jira/browse/HDFS-10681
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: diskbalancer
>    Affects Versions: HDFS-1312
>            Reporter: Manoj Govindassamy
>            Assignee: Manoj Govindassamy
>            Priority: Minor
>             Fix For: 3.0.0-alpha2
>
>         Attachments: HDFS-10681-HDFS-1312.001.patch, HDFS-10681-HDFS-1312.002.patch
>
>
> DiskBalancer query command currently reports planID (SHA512 hex) only. Currently ongoing
disk balancing activity in a datanode can be cancelled wither by planID + datanode_address
or just by pointing to the right plan file. Since there could be many plan files, to avoid
ambiguity its better if query command can report the plan file path also.
> {noformat}
> $ 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.
> Query command retrievs *the plan ID* and the current running state.
> {noformat}
> Sample query command output:
> {noformat}
> 16/06/20 15:42:16 INFO command.Command: Executing "query plan" command.
> Plan ID: 04f41e2e1fa2d63558284be85155ea68154fb6ab435f1078c642d605d06626f176da16b321b35c99f1f6cd0cd77090c8743bb9a19190c4a01b5f8c51a515e240
Result: PLAN_UNDER_PROGRESS
> or
> 16/06/20 15:46:09 INFO command.Command: Executing "query plan" command.
> Plan ID: 04f41e2e1fa2d63558284be85155ea68154fb6ab435f1078c642d605d06626f176da16b321b35c99f1f6cd0cd77090c8743bb9a19190c4a01b5f8c51a515e240
Result: PLAN_DONE
> {noformat}
> Cancel command syntax:
> {noformat}
> $ hdfs diskbalancer --help cancel
> *usage: hdfs diskbalancer -cancel <planFile> | -cancel <planID> -node
>             <hostname>*
> Cancel command cancels a running disk balancer operation.
>     --cancel <arg>   Cancels a running plan using a plan file.
>     --node <arg>     Cancels a running plan using a plan ID and hostName
> Cancel command can be run via pointing to a plan file, or by reading the
> plan ID using the query command and then using planID and hostname.
> Examples of how to run this command are
> hdfs diskbalancer -cancel <planfile>
> hdfs diskbalancer -cancel <planID> -node <hostname>
> {noformat}



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