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https://issues.apache.org/jira/browse/HADOOP-15774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16621046#comment-16621046
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Giovanni Matteo Fumarola commented on HADOOP-15774:
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Thank [~elgoiri] for creating this Jira.
We can use the SLB support from NodeManager and DataNode side since they do not
need to know all the ResourceManagers and NameNodes involved.
ResourceManagers and NameNodes should be leverage on their access to ZK to find
them.
> Discovery of HA servers
> -----------------------
>
> Key: HADOOP-15774
> URL: https://issues.apache.org/jira/browse/HADOOP-15774
> Project: Hadoop Common
> Issue Type: New Feature
> Reporter: Íñigo Goiri
> Priority: Major
>
> Currently, Hadoop relies on configuration files to specify the servers.
> This requires maintaining these configuration files and propagating the
> changes.
> Hadoop should have a framework to provide discovery.
> For example, in HDFS, we could define the Namenodes in a shared location and
> the DNs would use the framework to find the Namenodes.
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