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From "Matt Foley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7326) TestTrash.testTrashEmptier() infinite loops if run on a home directory with stuff in .Trash
Date Fri, 17 Jun 2011 23:39:47 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13051401#comment-13051401
] 

Matt Foley commented on HADOOP-7326:
------------------------------------

I think I found the problem with TestTrash using one's personal .Trash folder instead of something
from the "TestLFS" file system.  The main testcase, #testTrash() sets the TestLFS correctly,
then calls #trashShell(FileSystem, Path), which throws away the config object in which the
TestLFS was set, and instantiates a new one instead.  I've changed it to call fs.getConf()
instead, thereby preserving the use of the TestLFS configuration.

> TestTrash.testTrashEmptier() infinite loops if run on a home directory with stuff in
.Trash
> -------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-7326
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7326
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 0.22.0, 0.23.0
>            Reporter: Matt Foley
>            Assignee: Matt Foley
>         Attachments: hadoop-7326-TestTrash-1.patch
>
>
> This bug was discovered while investigating HDFS-1967, intermittent failure of TestHDFSTrash,
which calls TestTrash.  If the user id running the test has a ~/.Trash directory that already
has 4 or more files in it, a loop in TestTrash.testTrashEmptier() will never terminate, because
it is waiting for the count of objects to increase from zero to exactly three (and it creates
one object right away).

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