[jira] [Commented] (AMBARI-15507) Support for Multiple Nameservices

["Dmytro Sen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-15507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15253780#comment-15253780 ] 

Dmytro Sen commented on AMBARI-15507:
-------------------------------------

Resolved in sub-jiras commits

> Support for Multiple Nameservices
> ---------------------------------
>
>                 Key: AMBARI-15507
>                 URL: https://issues.apache.org/jira/browse/AMBARI-15507
>             Project: Ambari
>          Issue Type: Bug
>    Affects Versions: trunk
>            Reporter: Henning Kropp
>            Assignee: Henning Kropp
>             Fix For: 2.4.0
>
>
> This is an umbrella JIRA to collect issues related to the support of multiple Nameservices.
> Currently all implementations in Amabari assume that {{hdfs_site\['dfs.nameservices'\]}} is just a string defining one nameservice, while it actually defines multiple nameservices.
> Multiple nameservices can be configured for exmaple to support seamless distcp between two HA clusters. 
> At least 3 issues can be experienced:
> # Restart fails, because HdfsResource does not work, related to namenode_ha_utils.py
> # (Blueprint) Install fails because DN's register with wrong cluster. How do DN pick the right Nameservice?
> # Alerting is broken because it configures namservices as being one nameservice



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)