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https://issues.apache.org/jira/browse/HDFS-13673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514175#comment-16514175
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Hudson commented on HDFS-13673:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14435 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/14435/])
HDFS-13673. TestNameNodeMetrics fails on Windows. Contributed by Zuoming
(inigoiri: rev 43d994e4a6dfd1c24eafb909d6f8a0663b20769a)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/metrics/TestNameNodeMetrics.java
> TestNameNodeMetrics fails on Windows
> ------------------------------------
>
> Key: HDFS-13673
> URL: https://issues.apache.org/jira/browse/HDFS-13673
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Affects Versions: 3.1.0, 2.9.1
> Reporter: Zuoming Zhang
> Assignee: Zuoming Zhang
> Priority: Minor
> Labels: Windows
> Fix For: 2.10.0, 3.2.0, 3.1.1, 2.9.2, 3.0.4
>
> Attachments: HDFS-13673.000.patch, HDFS-13673.001.patch,
> TestNameNodeMetrics-testVolumeFailures-Report.000.txt,
> TestNameNodeMetrics-testVolumeFailures-Report.001.txt
>
>
> _TestNameNodeMetrics_ fails on Windows
>
> Problem:
> This is because in _testVolumeFailures_, it tries to call
> _DataNodeTestUtils.injectDataDirFailure_ on a volume folder. What
> _injectDataDirFailure_does is actually modifying the folder name from
> _volume_name_ to _volume_name_._origin_ and create a new file named as
> _volume_name_. Inside the folder, it has two things: 1. a directory named as
> "_current_", 2. a file named as "_in_use.lock_". Windows behaves different
> from Linux when renaming the parent folder of a locked file. Windows prevent
> you from renaming while Linux allows.
> Fix:
> So in order to inject data failure on to the volume. Instead of renaming the
> volume folder itself. Rename the folder inside it which doesn't hold a lock.
> Since the folder inside the volume is "_current_". Then we only need to
> inject data failure to _volume_name/current_.
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