Ctest created HADOOP-16971:
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Summary: testFileContextResolveAfs failed to delete created
symlink and pollute subsequent test run.
Key: HADOOP-16971
URL: https://issues.apache.org/jira/browse/HADOOP-16971
Project: Hadoop Common
Issue Type: Bug
Components: common, test
Affects Versions: 3.2.1, 3.4.0
Reporter: Ctest
Attachments: HADOOP-16971.000.patch
In the test `testFileContextResolveAfs`, the symlink
`TestFileContextResolveAfs2` (linked to `TestFileContextResolveAfs1`) was not
deleted as intended in the first run, thus the test will fail in the second run.
The reason is that this test uses org.apache.hadoop.fs.FileSystem to handle the
deletion of symlink, which
1. does not support symlink.
2. deletes `TestFileContextResolveAfs1` before `TestFileContextResolveAfs2` if
both links passed into `deleteOnExit` in any order, because of the ordering of
paths to be deleted in the TreeSet `deleteOnExit`.
When `TestFileContextResolveAfs1` has been deleted,
`TestFileContextResolveAfs2` became an orphan symlink and is now considered as
a non-exisitent path by org.apache.hadoop.fs.FileSystem, thus its deletion
cannot be completed.
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