Aleksandr Kovalenko created AMBARI-3526:
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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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