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Date: Wed, 27 Nov 2013 16:16:35 +0000 (UTC)
From: "Renil J (JIRA)" <jira@apache.org>
To: dev@hama.apache.org
Message-ID: <JIRA.12607068.1347374048936.39184.1385568995734@arcas>
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Subject: [jira] [Commented] (HAMA-637) Implement Group membership API for
 tasks
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    [ https://issues.apache.org/jira/browse/HAMA-637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13833908#comment-13833908 ] 

Renil J commented on HAMA-637:
------------------------------

Hi Suraj,Nice to meet you.
Yes, I have been trying to understand this feature and implement it.I'll post a design doc and patch on this jira as soon as I'm ready to present the details.Can you suggest me with some ways to test this implementation.
Thanks

> Implement Group membership API for tasks
> ----------------------------------------
>
>                 Key: HAMA-637
>                 URL: https://issues.apache.org/jira/browse/HAMA-637
>             Project: Hama
>          Issue Type: New Feature
>          Components: bsp core
>            Reporter: Suraj Menon
>            Assignee: Renil J
>
> We should experiment the effectiveness of this feature. Instead of a peer sending message to each of the peers that logically a part of a group(active vertices of graph, members of group in a cluster, etc.) 
> The API could be:
> {code}
> peer.sendMessageToGroup(String group, Writable message);
> {code}
> This should result in finding all the peers that are members of that group and send message to each of the peers in the group.
> Peers can change their membership status using the following API.
> The guarantee of the group membership is ensured only in the next superstep.
> {code}
> peer.registerWithGroup(String group, Writable message);
> peer.deregisterFromGroup(String group, Writable message);
> {code}
> For now we can try using Zookeeper for this solution.


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