[HDFS-4676] TestHDFSFileSystemContract should set MiniDFSCluster variable to null to free up memory

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.1.0-beta
• Component/s: test
• Hadoop Flags: Reviewed
• Assignee: Suresh Srinivas
• Reporter: Suresh Srinivas
• Created: 09/Apr/13 01:27
• Updated: 27/Aug/13 22:08
• Resolved: 09/Apr/13 16:23

Description

TestHDFSFileSystemContract should reset the cluster member to null in order to make garbage collection quickly collect large chunk of memory associated with MiniDFSCluster. This avoids OutOfMemory errors.

See https://issues.apache.org/jira/browse/HDFS-4434?focusedCommentId=13624246&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13624246 and the next jenkins tests where the OOM was fixed.