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https://issues.apache.org/jira/browse/HADOOP-5670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12853532#action_12853532
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Patrick Hunt commented on HADOOP-5670:
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Here's a really interesting paper from Akamai related to Quorum use for
configuration:
"ACMS: The Akamai Configuration Management System"
http://www.usenix.org/event/nsdi05/tech/full_papers/sherman/sherman_html/index.html
ZooKeeper has a REST based interface that might work well if client's (hadoop)
primary interest is to poll for configuration
during bootstrap. Not that one has to use REST, if the ZK client interface were
used directly then one could register
for dynamic changes via ZK watches. Additionally the hadoop nodes could take
advantage of other ZK features to implement
group membership,(nodes register themselves, and their state, with ZK, allowing
simple monitoring
to be implemented), Leader election, etc...
> Hadoop configurations should be read from a distributed system
> --------------------------------------------------------------
>
> Key: HADOOP-5670
> URL: https://issues.apache.org/jira/browse/HADOOP-5670
> Project: Hadoop Common
> 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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