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https://issues.apache.org/jira/browse/HADOOP-16971?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ctest updated HADOOP-16971:
---------------------------
Description:
In the test testFileContextResolveAfs, the symlink TestFileContextResolveAfs2
(linked to TestFileContextResolveAfs1) cannot be deleted when the test finishes.
This is because TestFileContextResolveAfs1 was always deleted before
TestFileContextResolveAfs2 when they were both passed into
FileSystem#deleteOnExit. This caused TestFileContextResolveAfs2 to become a
dangling link, which FileSystem in Hadoop currently cannot delete. (This is
because Files#exists will return false for dangling links.)
As a result, the test `testFileContextResolveAfs` only passed for the first
run. And for later runs of this test, it will fail by throwing the following
exception:
{code:java}
fs.FileUtil (FileUtil.java:symLink(821)) - Command 'ln -s
mypath/TestFileContextResolveAfs1 mypath/TestFileContextResolveAfs2' failed 1
with: ln: mypath/TestFileContextResolveAfs2: File exists
java.io.IOException: Error 1 creating symlink
file:mypath/TestFileContextResolveAfs2 to mypath/TestFileContextResolveAfs1
{code}
was:
In the test testFileContextResolveAfs, the symlink TestFileContextResolveAfs2
(linked to TestFileContextResolveAfs1) cannot be deleted when the test finishes.
This is because TestFileContextResolveAfs1 was always deleted before
TestFileContextResolveAfs2 when they were both passed into
FileSystem#deleteOnExit. This caused TestFileContextResolveAfs2 to become a
dangling link, which FileSystem in Hadoop currently cannot delete. (This is
because Files#exists will return false for dangling links.)
As a result, the test `testFileContextResolveAfs` only passed for the first
run. And for later runs of this test, it will fail by throwing the following
exception:
{code:java}
java.io.IOException: Error 1 creating symlink
file:/*/hadoop-common-project/hadoop-common/target/test/data/TestFileContextResolveAfs2
to
/*/hadoop-common-project/hadoop-common/target/test/data/TestFileContextResolveAfs1
{code}
> testFileContextResolveAfs creates dangling link and fails for subsequent runs
> -----------------------------------------------------------------------------
>
> Key: HADOOP-16971
> URL: https://issues.apache.org/jira/browse/HADOOP-16971
> Project: Hadoop Common
> Issue Type: Bug
> Components: common, fs, test
> Affects Versions: 3.2.1, 3.4.0
> Reporter: Ctest
> Priority: Minor
> Labels: easyfix, fs, symlink, test
> Attachments: HADOOP-16971.000.patch
>
>
> In the test testFileContextResolveAfs, the symlink TestFileContextResolveAfs2
> (linked to TestFileContextResolveAfs1) cannot be deleted when the test
> finishes.
> This is because TestFileContextResolveAfs1 was always deleted before
> TestFileContextResolveAfs2 when they were both passed into
> FileSystem#deleteOnExit. This caused TestFileContextResolveAfs2 to become a
> dangling link, which FileSystem in Hadoop currently cannot delete. (This is
> because Files#exists will return false for dangling links.)
> As a result, the test `testFileContextResolveAfs` only passed for the first
> run. And for later runs of this test, it will fail by throwing the following
> exception:
> {code:java}
> fs.FileUtil (FileUtil.java:symLink(821)) - Command 'ln -s
> mypath/TestFileContextResolveAfs1 mypath/TestFileContextResolveAfs2' failed 1
> with: ln: mypath/TestFileContextResolveAfs2: File exists
> java.io.IOException: Error 1 creating symlink
> file:mypath/TestFileContextResolveAfs2 to mypath/TestFileContextResolveAfs1
> {code}
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