[AMBARI-19246] Ambari Agent start fails with local variable 'server_url' referenced before assignment

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.0
• Fix Version/s: 2.5.0
• Component/s: ambari-agent
• Assignee: Andrew Onischuk
• Reporter: Alejandro Fernandez
• Created: 19/Dec/16 23:56
• Updated: 20/Dec/16 13:51
• Resolved: 20/Dec/16 13:09

Description

ambari-server-2.5.0.0-496.x86_64

When starting Ambari Agent, getting this error.
The server host is accessible.

[root@c6405 ~]# ambari-agent start
Verifying Python version compatibility...
Using python  /usr/bin/python
Checking for previously running Ambari Agent...
Starting ambari-agent
Verifying ambari-agent process status...
ERROR: ambari-agent start failed. For more details, see /var/log/ambari-agent/ambari-agent.out:
====================
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/ambari_agent/main.py", line 407, in <module>
    main(heartbeat_stop_callback)
  File "/usr/lib/python2.6/site-packages/ambari_agent/main.py", line 375, in main
    (retries, connected, stopped) = netutil.try_to_connect(server_url, MAX_RETRIES, logger)
UnboundLocalError: local variable 'server_url' referenced before assignment
====================
Agent out at: /var/log/ambari-agent/ambari-agent.out
Agent log at: /var/log/ambari-agent/ambari-agent.log

ambari-agent.log:

INFO 2016-12-19 23:53:42,640 PingPortListener.py:50 - Ping port listener started on port: 8670
WARNING 2016-12-19 23:53:42,761 main.py:371 - Unable to determine the IP address of the Ambari server 'c6404.ambari.apache.org'
ERROR 2016-12-19 23:53:42,762 main.py:412 - Exiting with exception:
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/ambari_agent/main.py", line 407, in <module>
    main(heartbeat_stop_callback)
  File "/usr/lib/python2.6/site-packages/ambari_agent/main.py", line 375, in main
    (retries, connected, stopped) = netutil.try_to_connect(server_url, MAX_RETRIES, logger)
UnboundLocalError: local variable 'server_url' referenced before assignment
INFO 2016-12-19 23:53:42,762 ExitHelper.py:53 - Performing cleanup before exiting...

cc aonishuk

Issue Links

• duplicates: AMBARI-18263 Agent connection retry fails after one try
• links to: ReviewBoard