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https://issues.apache.org/jira/browse/HAMA-480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13247492#comment-13247492
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Thomas Jungblut commented on HAMA-480:
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Thanks for the papers wolfgang!

We are currently having a double barrier implementation, looks quite like that 
of Curator. However we had some problems with zookeeper (and I think we still 
have) so the implementation is quite cluttered and can be improved.
                
> Try out different barrier implementations
> -----------------------------------------
>
>                 Key: HAMA-480
>                 URL: https://issues.apache.org/jira/browse/HAMA-480
>             Project: Hama
>          Issue Type: Improvement
>            Reporter: Thomas Jungblut
>              Labels: bsp,, sync
>
> We should have a look at different barrier implementations with Zookeeper.
> Have a look at the goldenorb stuff for example:
> https://github.com/raveldata/goldenorb/blob/master/src/main/java/org/goldenorb/zookeeper/OrbFastBarrier.java
> With out new synchronization service class this should be easily testable.

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