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https://issues.apache.org/jira/browse/HAMA-515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13222100#comment-13222100
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Edward J. Yoon commented on HAMA-515:
-------------------------------------
Regarding this issue, What do you think about change getCounter() interface
like this:
{code}
* @param synchronized true if the counter should be synchronized.
*/
public Counter getCounter(String group, String name, boolean synchronized);
{code}
> Counter should be synchronized by sync()
> ----------------------------------------
>
> Key: HAMA-515
> URL: https://issues.apache.org/jira/browse/HAMA-515
> Project: Hama
> Issue Type: New Feature
> Affects Versions: 0.4.0
> Reporter: Thomas Jungblut
> Priority: Minor
> Fix For: 0.5.0
>
>
> We should synchronize the counters in all tasks after a sync() call.
> Then someone can use it for flow control. E.G. graph related algorithms, to
> get the number of globally updated vertices.
> Two options to solve this:
> - Sync the whole stuff over RPC from the BSPMaster
> - Use Zookeeper for counter handling
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