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From "Andrii Babiichuk (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-2976) During agent registration show list of agents that are registered but do not correspond to any hostnames that are provided by the user
Date Wed, 21 Aug 2013 14:40:51 GMT
Andrii Babiichuk created AMBARI-2976:
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             Summary: During agent registration show list of agents that are registered but
do not correspond to any hostnames that are provided by the user
                 Key: AMBARI-2976
                 URL: https://issues.apache.org/jira/browse/AMBARI-2976
             Project: Ambari
          Issue Type: Improvement
          Components: client
    Affects Versions: 1.2.5
            Reporter: Andrii Babiichuk
            Assignee: Andrii Babiichuk
             Fix For: 1.4.1


It is not uncommon to have a mismatch between the hostname provided by the user (for hosts
that are member of the cluster) and the hostname used by the agent to register itself. Currently,
FE shows the list host, out of the list provided by the user, that registered or failed registration.
It will be useful to also show the list of hosts that have registered but do not correspond
to any of the hostnames supplied by the user. This will help in debugging situations where
there is a hostname mismatch.
In Confirm Hosts page, add a warning message section with a link labeled "There are X other
registered hosts" if there are such hosts. This should appear above the Host Checks message
area. 
"Other registered hosts" are defined as hosts that appear when we call /api/v1/hosts but do
not belong to the current list of hosts provided by the user thru the UI or hosts that already
belong to the cluster (ones that show up /ap1/v1/<cluster>/hosts).
If the count of such hosts is 0, we do not show this warning message.
Popup Title: "X Other Registered Hosts" where X is the number of such hosts.
Popup Body: "These are the hosts that have registered with the server, but do not appear in
the list of hosts that you are adding.", followed by a list of hostnames, one per line.

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