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https://issues.apache.org/jira/browse/HADOOP-8036?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13209863#comment-13209863
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Colin Patrick McCabe commented on HADOOP-8036:
----------------------------------------------
I've confirmed that aborting the test halfway through (for example, with the
stop button in Eclipse) will NOT invoke the tearDown function.
Given this, it seems prudent to do out cleanup work beforehand. Otherwise
people who manually abort the test halfway through will be hosed. Also, as you
pointed out, there is always the possibility of the JVM aborting, which would
definitely prevent cleanup.
We definitely want to avoid a situation where the Jenkins machine can't build,
but we can, due to some mysterious build artifacts hanging around. So I figure
it makes sense to stay on the safe side.
> TestViewFsTrash assumes the user's home directory is 2 levels deep
> ------------------------------------------------------------------
>
> Key: HADOOP-8036
> URL: https://issues.apache.org/jira/browse/HADOOP-8036
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs, test
> Affects Versions: 0.23.0
> Reporter: Eli Collins
> Assignee: Colin Patrick McCabe
> Attachments: HADOOP-8036.txt
>
>
> Looks like HADOOP-7974 didn't fix the issue. Still get "Path /var already
> exists as dir; cannot create link here Stacktrace" when running on jenkins
> with home dir /var/lib/jenkins.
> {noformat}
> org.apache.hadoop.fs.FileAlreadyExistsException: Path /var already exists as
> dir; cannot create link here
> at org.apache.hadoop.fs.viewfs.InodeTree.createLink(InodeTree.java:244)
> at org.apache.hadoop.fs.viewfs.InodeTree.<init>(InodeTree.java:334)
> at
> org.apache.hadoop.fs.viewfs.ViewFileSystem$1.<init>(ViewFileSystem.java:165)
> {noformat}
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