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https://issues.apache.org/jira/browse/HADOOP-8110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jason Lowe updated HADOOP-8110:
-------------------------------
Status: Open (was: Patch Available)
On second thought, we should be able to eliminate the race and make this more
robust by preventing the rename from succeeding if the destination name exists.
If we collide during the checkpoint rename, we can simply retry with an
attempt suffix to search for a unique name.
> TestViewFsTrash occasionally fails
> ----------------------------------
>
> Key: HADOOP-8110
> URL: https://issues.apache.org/jira/browse/HADOOP-8110
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 0.23.3, 0.24.0
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Jason Lowe
> Attachments: HADOOP-8110.patch
>
>
> {noformat}
> junit.framework.AssertionFailedError: -expunge failed expected:<0> but was:<1>
> at junit.framework.Assert.fail(Assert.java:47)
> at junit.framework.Assert.failNotEquals(Assert.java:283)
> at junit.framework.Assert.assertEquals(Assert.java:64)
> at junit.framework.Assert.assertEquals(Assert.java:195)
> at org.apache.hadoop.fs.TestTrash.trashShell(TestTrash.java:322)
> at
> org.apache.hadoop.fs.viewfs.TestViewFsTrash.testTrash(TestViewFsTrash.java:73)
> ...
> {noformat}
> There are quite a few TestViewFsTrash failures recently. E.g. [build #624
> for
> trunk|https://builds.apache.org/job/PreCommit-HADOOP-Build/624//testReport/org.apache.hadoop.fs.viewfs/TestViewFsTrash/testTrash/]
> and [build #2 for
> 0.23-PB|https://builds.apache.org/view/G-L/view/Hadoop/job/Hadoop-Common-0.23-PB-Build/2/testReport/junit/org.apache.hadoop.fs.viewfs/TestViewFsTrash/testTrash/].
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