[HADOOP-13571] ServerSocketUtil.getPort() should use loopback address, not 0.0.0.0

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3.1, 3.4.0, 3.2.3
• Fix Version/s: 3.3.1, 3.4.0, 3.2.3
• Component/s: net
• Target Version/s: 3.3.1, 3.4.0, 3.2.3
• Hadoop Flags: Reviewed
• Assignee: Eric Badger
• Reporter: Eric Badger
• Created: 01/Sep/16 13:47
• Updated: 11/Feb/24 13:35
• Resolved: 11/Dec/20 21:47

Description

Using 0.0.0.0 to check for a free port will succeed even if there's something bound to that same port on the loopback interface. Since this function is used primarily in testing, it should be checking the loopback interface for free ports.