[jira] [Resolved] (HDFS-2582) Scope dfs.ha.namenodes config by nameservice

["Todd Lipcon (Resolved) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-2582?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon resolved HDFS-2582.
-------------------------------

      Resolution: Fixed
    Hadoop Flags: Reviewed

Committed to HDFS-1623 branch. Thanks for the reviews, Eli. If there are further review comments I'll be happy to address post-commit.
                
> Scope dfs.ha.namenodes config by nameservice
> --------------------------------------------
>
>                 Key: HDFS-2582
>                 URL: https://issues.apache.org/jira/browse/HDFS-2582
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: data-node, name-node
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: HA branch (HDFS-1623)
>
>         Attachments: hdfs-2582-v2.txt, hdfs-2582-v3.txt, hdfs-2582-v4.txt, hdfs-2582.txt
>
>
> HDFS-2231 started the process of adding configuration for HA, but one piece is missing. The current state of the configuration is, I believe:
> {{dfs.ha.namenodes}} - a list of identifiers for HA namenodes
> {{dfs.federation.nameservices}} - a list of federated nameservices
> {{dfs.namenode.rpc-address[.nameservice-id][.namenode-id]}} - some specific config for the given namenode. If HA or federation is disabled, the extra components can be elided for backwards compatibility.
> The issue here is that there is no easy way to discern which NN is paired with which other NN. Additionally, adding a new federated nameservice to a config will require changes to {{dfs.ha.namenodes}} which makes templating harder. It would be simpler to change {{dfs.ha.namenodes}} to be nameservice-scoped: {{dfs.ha.namenodes.<nameservice-id>}}.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira