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From "Aleksandr Kovalenko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-3526) Reassign Master: HDFS service check fails after Namenode reassignment with HA enabled
Date Wed, 16 Oct 2013 15:47:42 GMT
Aleksandr Kovalenko created AMBARI-3526:
-------------------------------------------

             Summary: Reassign Master: HDFS service check fails after Namenode reassignment
with HA enabled
                 Key: AMBARI-3526
                 URL: https://issues.apache.org/jira/browse/AMBARI-3526
             Project: Ambari
          Issue Type: Task
          Components: client
    Affects Versions: 1.4.2
            Reporter: Aleksandr Kovalenko
            Assignee: Aleksandr Kovalenko
            Priority: Critical
             Fix For: 1.4.2


We need to make three changes to the wizard.
# Step-4 (reassign-step4.png) needs to have first command as Stop NameNode. This command should
stop namenode component on the selected source host. This is to  makes sure that the selected
namenode host to be moved becomes standby before we proceed ahead.
# We need to add one more step to the wizard after step-4 (Install, Start and Test). The mockup
and purpose of this new step is exactly same as of step7 (Start Components) in namenode HA
wizard. Start NameNode command in this step should start active namenode. Active namenode
should be on a host which was *not selected* as source host to be moved in the wizard.
# There is only one manual command required on manual command page. The message for it should
be like:
* Login to the newly installed NameNode host <target host hostname>
* Initialize the metadata by running:
{quote}
sudo su -l hdfs -c 'hdfs namenode -bootstrapStandby'
{quote}
* Proceed next




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