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https://issues.apache.org/jira/browse/HAMA-304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12919734#action_12919734
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Edward J. Yoon commented on HAMA-304:
-------------------------------------

And, it would be nice if we can get also the IDs of the bspPeer and task with 
hostname:port, via getPeerAddresses() in BSP function. 

> Allow BSP peers to get a list of all other peers executing tasks of the same 
> job
> --------------------------------------------------------------------------------
>
>                 Key: HAMA-304
>                 URL: https://issues.apache.org/jira/browse/HAMA-304
>             Project: Hama
>          Issue Type: New Feature
>            Reporter: Filipe Manana
>            Assignee: Filipe Manana
>         Attachments: hama-304.patch
>
>
> Hi,
> Currently (as in the PiEstimator example), when a peer wants to send a 
> message to other peer, it has to know in advance its hostname and port. This 
> is likely fine for very small clusters, but not convenient for reasonably 
> sized clusters.
> The following patch allows a peer to get a list of all other peers 
> (collection of InetSocketAddress) so that it doesn't force a BSP job to know 
> in advance the hostname and ports of the peers.
> The implementation might not be very efficient for very large clusters, as a 
> list of groom server addresses is sent in each HeartBeat response. This is 
> something I think it should be improved sometime later.
> Feedback welcome.
> cheers

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