[jira] [Resolved] (HAMA-515) Counter should be synchronized by sync()

["Thomas Jungblut (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HAMA-515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Jungblut resolved HAMA-515.
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    Resolution: Won't Fix

I don't think this will be usable anymore. We should use counters just for tracking purposes.
                
> 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: 0.5.0
>            Reporter: Thomas Jungblut
>            Priority: Minor
>         Attachments: HAMA-515.patch
>
>
> 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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