Sebastian Toader created AMBARI-20787:
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Summary: Ambari agent should log how it determines it's FQDN
Key: AMBARI-20787
URL: https://issues.apache.org/jira/browse/AMBARI-20787
Project: Ambari
Issue Type: Improvement
Components: ambari-agent
Affects Versions: 2.4.0
Reporter: Sebastian Toader
Assignee: Sebastian Toader
Fix For: 2.5.1
Ambari agent determines its FQDN that will use for registering with Ambari
Server as follows:
# invokes the script specified by {{hostname_script}} in ambari-agent.ini and
uses the output of this script as host name to register with.
# if the script mentioned above returned with a non-zero error code (or threw
an exception) than falls back to
[socket.getfqdn|https://docs.python.org/2/library/socket.html#socket.getfqdn]
python api call.
# if {{hostname_script}} is not set in ambari-agent.ini than it uses
[socket.getfqdn|https://docs.python.org/2/library/socket.html#socket.getfqdn]
python api call.
Currently the agent doesn't log anything about how it obtained its FQDN which
makes troubleshooting difficult in case it registers with Ambari Server using
unexpected/wrong FQDN.
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