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From "Aleksandr Kovalenko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-2991) NameNode HA Wizard: Prompt for Nameservice ID in Get Started page
Date Thu, 22 Aug 2013 15:22:52 GMT
Aleksandr Kovalenko created AMBARI-2991:
-------------------------------------------

             Summary: NameNode HA Wizard: Prompt for Nameservice ID in Get Started page
                 Key: AMBARI-2991
                 URL: https://issues.apache.org/jira/browse/AMBARI-2991
             Project: Ambari
          Issue Type: Task
          Components: client
    Affects Versions: 1.4.1
            Reporter: Aleksandr Kovalenko
            Assignee: Aleksandr Kovalenko
             Fix For: 1.4.1
         Attachments: AMBARI-2991.patch

Create a text field with the label "Nameservice ID".
The tooltip for this field should be "This will be the ID for the NameNode HA cluster.  For
example, if you set Nameservice ID to *mycluster*, the logical URI for HDFS will be *hdfs://mycluster*."

We'll do a round of text clean up later.  Let's get this in first so that we can integrate
end to end with this change.
So far, we have been hardcoding "mycluster".  Based on the value of this, we should set the
affected property keys and values appropriately when we reconfigure HDFS in the Deploy step.

Let's make the validation for the Nameservice ID to be the same rule as the hostname (not
FQDN, but the first component of it).  This should be flexible enough and also avoids potential
problems (doesn't seem like we should allow dots as the Nameservice ID is used as the name
of keys whose components are dot-delimited, like dfs.namenode.http-address.mycluster.nn1)
{noformat}
^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])$
{noformat}


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