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https://issues.apache.org/jira/browse/HDFS-3128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13959460#comment-13959460
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Tsz Wo Nicholas Sze commented on HDFS-3128:
-------------------------------------------
{quote}
Here's a patch that removes use of /tmp from HDFS. I grepped for "/tmp" test
roots in the test directory, and changed them all to use
FileSystem/FileContextTestHelper. I don't know why a test would want to set its
own test root, so I made those Helper constructors private to enforce proper
usage.
{quote}
[~andrew.wang], if there is something that you don't understand, please figure
them out before committing anything. Thanks!
> Unit tests should not use a test root in /tmp
> ---------------------------------------------
>
> Key: HDFS-3128
> URL: https://issues.apache.org/jira/browse/HDFS-3128
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Affects Versions: 2.3.0
> Reporter: Eli Collins
> Assignee: Andrew Wang
> Priority: Minor
> Fix For: 2.4.0
>
> Attachments: hdfs-3128-1.patch
>
>
> Saw this on jenkins, TestResolveHdfsSymlink#testFcResolveAfs creates
> /tmp/alpha which interferes with other executors on the same machine.
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