[HADOOP-4744] Wrong resolution of hostname and port

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.20.0
• Fix Version/s: 0.20.0
• Hadoop Flags: Reviewed
• Assignee: Jothi Padmanabhan
• Reporter: Amareshwari Sriramadasu
• Created: 01/Dec/08 10:28
• Updated: 14/Nov/09 02:12
• Resolved: 02/Mar/09 10:37

Description

I noticed the following for one of the hosts in a cluster:

1. machines.jsp page resolves the http address as just "http://hostname" (which doesn't work). It doesnt put the port number for the host. Even if I add the port number manually in the URI, the task tracker page does not come up.
2. All the tasks(both maps and reduces) which ran on the machine ran successfully. But tasklogs cannot be viewed, because port-number is not resolved. ( same problem as in (1)).
3. The reducers waiting for maps ran on that machine fail with connection failed errors saying the hostname is 'null'.

Issue Links

• is related to: HADOOP-6386 NameNode's HttpServer can't instantiate InetSocketAddress: IllegalArgumentException is thrown