[HDFS-13251] Avoid using hard coded datanode data dirs in unit tests

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.1.0
• Component/s: test
• Hadoop Flags: Reviewed
• Assignee: Ajay Kumar
• Reporter: Xiaoyu Yao
• Created: 09/Mar/18 02:19
• Updated: 19/Mar/18 18:31
• Resolved: 15/Mar/18 17:20

Description

There are a few unit tests that rely on hard-coded MiniDFSCluster data dir names.

 

• TestDataNodeVolumeFailureToleration
• TestDataNodeVolumeFailureReporting
• TestDiskBalancerCommand
• TestBlockStatsMXBean
• TestDataNodeVolumeMetrics
• TestDFSAdmin
• TestDataNodeHotSwapVolumes
• TestDataNodeVolumeFailure

This ticket is opened to use

MiniDFSCluster#getInstanceStorageDir(0, 1);

instead of like below

new File(cluster.getDataDirectory(), "data1");