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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5670) Hadoop configurations should be read from a distributed system
Date Tue, 14 Apr 2009 21:11:14 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12698934#action_12698934
] 

Allen Wittenauer commented on HADOOP-5670:
------------------------------------------

I think it goes without saying that a pluggable system would be great here.  LDAP and ZK are
just two examples of many that could be used to provide this sort of functionality.  Heck,
no reason it couldn't be as simple as a HTTP GET. 

[I'll admit i'm slightly partial to LDAP here due to the requirement to provide a schema.
 It provides a rudimentary way to enforce some basic rules on the data prior to Hadoop even
seeing it.]

> Hadoop configurations should be read from a distributed system
> --------------------------------------------------------------
>
>                 Key: HADOOP-5670
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5670
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: conf
>            Reporter: Allen Wittenauer
>
> Rather than distributing the hadoop configuration files to every data node, compute node,
etc, Hadoop should be able to read configuration information (dynamically!) from LDAP, ZooKeeper,
whatever.

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