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From "Shashikant Banerjee (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12948) DiskBalancer report command top option should only take positive numeric values
Date Thu, 21 Dec 2017 18:48:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Shashikant Banerjee updated HDFS-12948:
---------------------------------------
    Attachment: HDFS-12948.001.patch

Patch v1 handles the case where if the top limit specified for report command is not valid,
it throws an exception.

[~anu], please have a look.

> DiskBalancer report command top option should only take positive numeric values
> -------------------------------------------------------------------------------
>
>                 Key: HDFS-12948
>                 URL: https://issues.apache.org/jira/browse/HDFS-12948
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Shashikant Banerjee
>            Assignee: Shashikant Banerjee
>            Priority: Minor
>         Attachments: HDFS-12948.001.patch
>
>
> Currently , diskBalancer report command "top" option takes values like "AAA" as well
negative/decimal values and gives output. These invalid values should not be processed and
some error/warning should be given.
> For Example, 
> $ hdfs diskbalancer -report -top -100
> 17/12/19 15:07:01 INFO command.Command: Processing report command
> 17/12/19 15:07:02 INFO balancer.KeyManager: Block token params received from NN: update
interval=10hrs, 0sec, token lifetime=10hrs, 0sec
> 17/12/19 15:07:02 INFO block.BlockTokenSecretManager: Setting block keys
> 17/12/19 15:07:02 INFO balancer.KeyManager: Update block keys every 2hrs, 30mins, 0sec
> 17/12/19 15:07:02 INFO command.Command: Reporting top -100 DataNode(s) benefiting from
running DiskBalancer.
> Processing report command
> Reporting top -100 DataNode(s) benefiting from running DiskBalancer.



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