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https://issues.apache.org/jira/browse/HAMA-637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13637266#comment-13637266
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Edward J. Yoon commented on HAMA-637:
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This looks good idea!
> 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
>
> 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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