[HDFS-11700] TestHDFSServerPorts#testBackupNodePorts doesn't pass on Windows

• Type: Test
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.10.0, 3.2.0, 3.1.1, 2.9.2, 3.0.3
• Labels: Windows

Environment

Windows 10

• Hadoop Flags: Reviewed
• Assignee: Anbang Hu
• Reporter: Anbang Hu
• Created: 25/Apr/17 01:47
• Updated: 26/May/18 03:26
• Resolved: 15/May/18 17:31

Description

In TestHDFSServerPorts.testBackupNodePorts, there are two attempts at starting backup node.

Attempt 1:
1) It binds namenode backup address with 0:

backup_config.set(DFSConfigKeys.DFS_NAMENODE_BACKUP_ADDRESS_KEY, THIS_HOST);

2) It sets namenode backup address with an available port X.
3) It fails rightfully due to using the same http address as active namenode.

Attempt 2:
1) It tries to reuse port X as namenode backup address.
2) It fails to bind to X because Windows does not release port X properly after Attempt 1 fails.

Issue Links

• is related to: HADOOP-15475 Fix broken unit tests on Windows