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From "Dmitry Lysnichenko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-2320) Ambari server should check agent machine can reach ambari server
Date Fri, 07 Jun 2013 15:42:19 GMT
Dmitry Lysnichenko created AMBARI-2320:
------------------------------------------

             Summary: Ambari server should check agent machine can reach ambari server
                 Key: AMBARI-2320
                 URL: https://issues.apache.org/jira/browse/AMBARI-2320
             Project: Ambari
          Issue Type: Bug
          Components: controller
    Affects Versions: 1.2.5
            Reporter: Dmitry Lysnichenko
            Assignee: Dmitry Lysnichenko
            Priority: Critical
             Fix For: 1.2.5


Host registration commonly fails when Agent machine can't make it back to Server (results
in failed host register because Server never sees host register).

When using SSH to register hosts, Ambari server should confirm on the ambari agent host that
it can reach the ambari server (check the web port of ambari server). If it can reach ambari
server, then proceed with bootstrap process. If host cannot reach the ambari server, bail,
do not start agent bootstraping and provide a message to the user "Host registration aborted.
Ambari Agent host cannot reach Ambari Server. Please check the network connectivity between
the Ambari Agent host and the Ambari Server"

Other scenarios to consider:

1) the ambari server might have been configured to run on a port other than 8080 so the port
to check should be passed down to the agent
2) how to handle authentication against the ambari server 8080? Can we just confirm we can
connect to the port, even if auth fails? Connect is the test for connectivity, not actual
results from the ambari server call.

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