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From "Ayush Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-14188) Make hdfs ec -verifyClusterSetup command accept an erasure coding policy as a parameter
Date Sun, 03 Feb 2019 16:11:01 GMT

    [ https://issues.apache.org/jira/browse/HDFS-14188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16759462#comment-16759462
] 

Ayush Saxena commented on HDFS-14188:
-------------------------------------

Thanx [~knanasi] for the patch!!!

Overall patch looks good. some minor comments ::

        * Can we support to have multiple policies specified in the command rather than having
single?. If possible it shall be good if somebody wants to give a check to more than one,
since the operation is little heavy , It could save some efforts.
        *  Regarding the Test. Do we need to put up two separate tests. It seems the cluster
setup is same in both. If no issue we can merge the two into one only.
        *  I guess we should add the extended behavior of the API in the document too.   
         

> Make hdfs ec -verifyClusterSetup command accept an erasure coding policy as a parameter
> ---------------------------------------------------------------------------------------
>
>                 Key: HDFS-14188
>                 URL: https://issues.apache.org/jira/browse/HDFS-14188
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: erasure-coding
>    Affects Versions: 3.1.1
>            Reporter: Kitti Nanasi
>            Assignee: Kitti Nanasi
>            Priority: Major
>         Attachments: HDFS-14188.001.patch, HDFS-14188.002.patch
>
>
> hdfs ec -verifyClusterSetup command verifies if there are enough data nodes and racks
for the enabled erasure coding policies
> I think it would be beneficial if it could accept an erasure coding policy as a parameter
optionally. For example the following command would run the verify for only the RS-6-3-1024k
policy.
> {code:java}
> hdfs ec -verifyClusterSetup -policy RS-6-3-1024k
> {code}



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