[HDFS-5742] DatanodeCluster (mini cluster of DNs) fails to start

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 2.4.0
• Component/s: test
• Target Version/s: 2.4.0
• Hadoop Flags: Reviewed
• Assignee: Arpit Agarwal
• Reporter: Arpit Agarwal
• Created: 08/Jan/14 22:38
• Updated: 12/May/16 18:13
• Resolved: 20/Feb/14 03:49

Description

DatanodeCluster fails to start with NPE in MiniDFSCluster.

Looks like a simple bug in MiniDFSCluster#determineDfsBaseDir - missing check for null configuration.

Also included are a few improvements to DataNodeCluster, details in comments below.