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Date: Tue, 14 Feb 2012 20:17:59 +0000 (UTC)
From: "Todd Lipcon (Updated) (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HDFS-2934) HA: Allow configs to be scoped to all
 NNs in the nameservice
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     [ https://issues.apache.org/jira/browse/HDFS-2934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon updated HDFS-2934:
------------------------------

    Attachment: hdfs-2934.txt

Simple patch extends this behavior to all of the configs listed in NAMESERVICE_SPECIFIC_KEYS
                
> HA: Allow configs to be scoped to all NNs in the nameservice
> ------------------------------------------------------------
>
>                 Key: HDFS-2934
>                 URL: https://issues.apache.org/jira/browse/HDFS-2934
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, name-node
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Minor
>         Attachments: hdfs-2934.txt
>
>
> Currently, for namenode-specific keys in HA, one must configure them as keyfoo.nameserviceid.namenodeid. However, in many cases all of the NNs in a nameservice would share the same value. So we should allow the configuration of "keyfoo.nameserviceid" to apply to all NNs. The resolution path for these keys would then be:
> keyfoo.nameserviceid.nnid
> keyfoo.nameserviceid (if above not set)
> keyfoo (if neither of above set)

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