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https://issues.apache.org/jira/browse/AMBARI-22800?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xianghao Lu updated AMBARI-22800:
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Attachment: AMBARI-22800.patch
> Ambari agent get wrong FQDN by getfqdn()
> ----------------------------------------
>
> Key: AMBARI-22800
> URL: https://issues.apache.org/jira/browse/AMBARI-22800
> Project: Ambari
> Issue Type: Bug
> Components: ambari-agent
> Affects Versions: trunk
> Reporter: Xianghao Lu
> Priority: Major
> Attachments: AMBARI-22800.patch
>
>
> Ambari agent sometimes get a wrong FQDN by python function socket.getfqdn(),
> for example, host uses the /_etc_/_hosts_ file to resolve hostname to IP
> addresses, as a result, Ambari agent will register failed. My case is as
> follows:
> [root@test ~]$ hostname
> test.example.com
> [root@test ~]$ cat /etc/hosts
> 127.0.0.1 localhost localhost.localdomain
> 10.208.47.45 a01
> [root@test ~]$ python
> Python 2.6.6 (r266:84292, Aug 18 2016, 15:13:37)
> [GCC 4.4.7 20120313 (Red Hat 4.4.7-17)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import socket
> >>> print socket.getfqdn()
> a01
>
> Agent error log:
> INFO 2018-01-17 15:52:29,774 hostname.py:67 - agent:hostname_script
> configuration not defined thus read hostname 'a01' using socket.getfqdn().
> ERROR 2018-01-17 15:52:29,774 main.py:244 - Ambari agent machine hostname
> (a01) does not match expected ambari server hostname (test.example.com).
> Aborting registration. Please check hostname, hostname -f and /etc/hosts file
> to confirm your hostname is setup correctly
>
> Related Links：
> [https://bugs.python.org/issue5004]
>
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