[jira] [Created] (HDFS-5093) TestGlobPaths should re-use the MiniDFSCluster to avoid failure on Windows

["Chuan Liu (JIRA)" <ji...@apache.org>]

Chuan Liu created HDFS-5093:
-------------------------------

             Summary: TestGlobPaths should re-use the MiniDFSCluster to avoid failure on Windows
                 Key: HDFS-5093
                 URL: https://issues.apache.org/jira/browse/HDFS-5093
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 3.0.0, 2.3.0
            Reporter: Chuan Liu
            Assignee: Chuan Liu
            Priority: Minor


Some test cases in TestGlobPaths fail on Windows because they try to create a new MiniDFSCluster though there is already one created at {{setUp()}}. This leads to failure on Windows because the new cluster will try to clean the old name node file that was opened by the existing cluster -- on Windows, the process or thread cannot delete the file opened in normal Java APIs by another process or thread.

An example failure run looks like the following.

{noformat}
testGlobWithSymlinksOnFS(org.apache.hadoop.fs.TestGlobPaths)  Time elapsed: 47 sec  <<< ERROR!
java.io.IOException: Could not fully delete E:\tr\hadoop-hdfs-project\hadoop-hdfs\target\test\data\dfs\name1
	at org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:759)
	at org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:644)
	at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:334)
	at org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:316)
	at org.apache.hadoop.fs.TestGlobPaths.testOnFileSystem(TestGlobPaths.java:805)
	at org.apache.hadoop.fs.TestGlobPaths.testGlobWithSymlinksOnFS(TestGlobPaths.java:889)
...
{noformat}

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