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https://reviews.apache.org/r/54890/
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Review request for Ambari and Dmitro Lisnichenko.


Bugs: AMBARI-19246
    https://issues.apache.org/jira/browse/AMBARI-19246


Repository: ambari


Description
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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...


Diffs
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  ambari-agent/src/main/python/ambari_agent/main.py 50e5d62 

Diff: https://reviews.apache.org/r/54890/diff/


Testing
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mvn clean test


Thanks,

Andrew Onischuk

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