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https://issues.apache.org/jira/browse/AMBARI-14455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15075018#comment-15075018
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Vitaly Brodetskyi commented on AMBARI-14455:
--------------------------------------------
[[email protected]]. Here is modified steps(from your comment) for
host names update, which include NN HA enabled.
1. Stop all pending commands/jobs
2. Stop all services via Ambari
3. Backup Ambari db.
4. ssh master1 and stop ambari-server and all ambari-agents
5. Create json file with the host names changes.
{code}
{
"VM4C8" : {
"selena1.labs.teradata.com" :
"hostnamechange1.labs.teradata.com",
"selena2.labs.teradata.com" :
"hostnamechange2.labs.teradata.com",
"selena3.labs.teradata.com" :
"hostnamechange3.labs.teradata.com",
"selena4.labs.teradata.com" :
"hostnamechange4.labs.teradata.com",
"selena5.labs.teradata.com" :
"hostnamechange5.labs.teradata.com",
"selena6.labs.teradata.com" :
"hostnamechange6.labs.teradata.com",
"selena8.labs.teradata.com" :
"hostnamechange8.labs.teradata.com"
}
}
{code}
6.Execute command on the ambari-server hosts (master1):
{code}
ambari-server update-host-names host_names_changes.json
{code}
7. Change etc/hosts, hostname, /etc/HOSTNAME on all nodes according to changes
that added to json file
8. Change 'ambari-agent.ini' file hostname field with new hostname
{code}
hostname=hostnamechange1.labs.teradata.com
{code}
9. Start ambar-server and all ambari-agents
Follow these two(#10, #11) steps if you have NN HA enabled:
10. Start ZK service, and then ZKFC components.
11. Execute this command on both hosts with NameNode hdfs zkfc -formatZK -force
12. Using ambari UI, start all services.
> After changing the hostname on the HA cluster the ZKFC's metadata still uses
> old hostname.
> ------------------------------------------------------------------------------------------
>
> Key: AMBARI-14455
> URL: https://issues.apache.org/jira/browse/AMBARI-14455
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.2.0
> Reporter: Irina Easterling
> Assignee: Vitaly Brodetskyi
> Fix For: 2.2.1
>
>
> After changing the hostname to be new on the HA cluster the ZKFC's metadata
> still uses old hostname.
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