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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7719) BlockPoolSliceStorage#removeVolumes fails to remove some in-memory state associated with volumes
Date Wed, 04 Feb 2015 20:10:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14305860#comment-14305860
] 

Colin Patrick McCabe commented on HDFS-7719:
--------------------------------------------

I ran TestDFSMkdirs locally and can confirm that it succeeds.  This is definitely Jenkins
flakiness.  Committed to 2.7

> BlockPoolSliceStorage#removeVolumes fails to remove some in-memory state associated with
volumes
> ------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-7719
>                 URL: https://issues.apache.org/jira/browse/HDFS-7719
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Lei (Eddy) Xu
>            Assignee: Lei (Eddy) Xu
>         Attachments: HDFS-7719.000.patch, HDFS-7719.001.patch, HDFS-7719.002.patch, HDFS-7719.003.patch
>
>
> The parameter of {{BlockPoolSliceStorage#removeVolumes()}} is a set of volume level directories,
thus {{BlockPoolSliceStorage}} could not directly compare its own {{StorageDirs}} with this
volume-level directory. The result of that is {{BlockPoolSliceStorage}} did not actually remove
the targeted {{StorageDirectory}}. 
> It will cause failure when remove a volume and then immediately add a volume back with
the same mount point..



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