[jira] [Updated] (AMBARI-15064) RU/EU can't start if hosts have name in MixedCASE in configs for NameNode, HBASE Master, ResourceManager

["Alejandro Fernandez (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-15064?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alejandro Fernandez updated AMBARI-15064:
-----------------------------------------
    Attachment: AMBARI-15064.trunk.patch

> RU/EU can't start if hosts have name in MixedCASE in configs for NameNode, HBASE Master, ResourceManager
> --------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-15064
>                 URL: https://issues.apache.org/jira/browse/AMBARI-15064
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.2.0
>            Reporter: Alejandro Fernandez
>            Assignee: Alejandro Fernandez
>             Fix For: 2.2.2
>
>         Attachments: AMBARI-15064.trunk.patch
>
>
> RU/EU tries to resolve the hostnames for NameNode, HBASE Master, and ResourceManager by using MasterHostResolver.java, which queries configs and then JMX.
> Ambari DB stores the hostnames in all lowercase, so if the configs or JMX store the hostnames in a different case, then Ambari will throw an exception that the host could not be found.
> To fix this, convert all hostnames to lowercase.



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