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From "Manoj Govindassamy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11251) ConcurrentModificationException during DataNode#refreshVolumes
Date Thu, 22 Dec 2016 04:10:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15768964#comment-15768964
] 

Manoj Govindassamy commented on HDFS-11251:
-------------------------------------------

Sure, this is doable. I was inducing a delay in {{refreshVolumes}} to simulate race. I can
try something with Mockito to simulate my testing. 

> ConcurrentModificationException during DataNode#refreshVolumes
> --------------------------------------------------------------
>
>                 Key: HDFS-11251
>                 URL: https://issues.apache.org/jira/browse/HDFS-11251
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 3.0.0-alpha2
>            Reporter: Jason Lowe
>            Assignee: Manoj Govindassamy
>         Attachments: HDFS-11251.01.patch
>
>
> The testAddVolumesDuringWrite case failed with a ReconfigurationException which appears
to have been caused by a ConcurrentModificationException.  Stacktrace details to follow.



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