[HDFS-13408] MiniDFSCluster to support being built on randomized base directory

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.10.0, 3.2.0, 3.1.1, 2.9.2, 3.0.3
• Component/s: test
• Labels: windows
• Hadoop Flags: Reviewed
• Assignee: Xiao Liang
• Reporter: Xiao Liang
• Created: 06/Apr/18 18:38
• Updated: 18/May/18 16:15
• Resolved: 23/Apr/18 18:22

Description

Generated files of MiniDFSCluster during test are not properly cleaned in Windows, which fails all subsequent test cases using the same default directory (Windows does not allow other processes to delete them). By migrating to randomized base directories, the conflict of test path of test cases will be avoided, even if they are running at the same time.

Issue Links

• blocks: HDFS-13336 Test cases of TestWriteToReplica failed in windows
• is related to: HADOOP-15475 Fix broken unit tests on Windows
• relates to: HDFS-13509 Bug fix for breakHardlinks() of ReplicaInfo/LocalReplica, and fix TestFileAppend failures on Windows
• relates to: HDFS-13503 Fix TestFsck test failures on Windows
• relates to: HDFS-13567 TestNameNodeMetrics#testGenerateEDEKTime,TestNameNodeMetrics#testResourceCheck should use a different cluster basedir
• relates to: HDFS-13593 TestBlockReaderLocalLegacy#testBlockReaderLocalLegacyWithAppend fails on Windows