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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-2314) TestBlockReplacement occasionally get into an infinite loop
Date Fri, 30 Nov 2007 18:54:43 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-2314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hairong Kuang updated HADOOP-2314:
----------------------------------

    Attachment: block.patch

Here is a patch for fixing the problem. I've run this for 50 times in a row and havenot see
any timeout.

> TestBlockReplacement occasionally get into an infinite loop
> -----------------------------------------------------------
>
>                 Key: HADOOP-2314
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2314
>             Project: Hadoop
>          Issue Type: Bug
>    Affects Versions: 0.15.1
>            Reporter: Hairong Kuang
>            Assignee: Hairong Kuang
>             Fix For: 0.16.0
>
>         Attachments: block.patch
>
>
> It turns out that in the case that tests an invalid deletion hint, either the newNode
or source may be choosen to be deleted as an exessive replica since both of the nodes are
on the same rack. The test assumes that only newNode will be deleted and wait for its deletion.
This causes an infinite loop when source is chosen to be deleted.

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