[HDFS-5948] TestBackupNode flakes with port in use error

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.4.0
• Target Version/s: 2.4.0
• Hadoop Flags: Reviewed
• Assignee: Haohui Mai
• Reporter: Andrew Wang
• Created: 13/Feb/14 18:41
• Updated: 10/Apr/14 13:11
• Resolved: 14/Feb/14 22:01

Description

TestBackupNode has flaked on our internal Jenkins and I found it in a few test-patch runs upstream too. Error like this:

Error Message:
Port in use: 0.0.0.0:50105

Stack Trace:
java.lang.AssertionError: Port in use: 0.0.0.0:50105
        at org.junit.Assert.fail(Assert.java:91)
        at org.junit.Assert.assertTrue(Assert.java:43)
        at org.apache.hadoop.hdfs.server.namenode.TestBackupNode.testCheckpoint(TestBackupNode.java:295)
        at org.apache.hadoop.hdfs.server.namenode.TestBackupNode.testCheckpointNode(TestBackupNode.java:124)
...