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https://issues.apache.org/jira/browse/HAMA-515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13221883#comment-13221883
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ChiaHung Lin commented on HAMA-515:
-----------------------------------
Not very sure what's the issue in this ticket.
With the default zk implementation, the counter should be sync among all bsp
tasks.
If we just want bsp master to know the current count (superstep value) that bsp
tasks sync to, placing a watch on zk (pointing to /bsp/job_id) and process()
after get notified should work.
But I may misunderstand the issue.
> 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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