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https://issues.apache.org/jira/browse/YARN-1722?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod Kumar Vavilapalli resolved YARN-1722.
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Resolution: Duplicate
Fix Version/s: (was: 2.5.0)
Dup of YARN-435. YARN-435 didn't make progress not because of any technical
reasons. We are going to work on it soon. Closing this as dup.
> AMRMProtocol should have a way of getting all the nodes in the cluster
> ----------------------------------------------------------------------
>
> Key: YARN-1722
> URL: https://issues.apache.org/jira/browse/YARN-1722
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.2.0
> Reporter: Bikas Saha
>
> There is no way for an AM to find out the names of all the nodes in the
> cluster via the AMRMProtocol. An AM can only at best ask for containers at *
> location. The only way to get that information is via the ClientRMProtocol
> but that is secured by Kerberos or RMDelegationToken while the AM has an
> AMRMToken. This is a pretty important piece of missing functionality. There
> are other jiras opened about getting cluster topology etc. but they havent
> been addressed due to a clear definition of cluster topology perhaps. Adding
> a means to at least get the node information would be a good first step.
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