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New Article: Extend the Data Grid With Hub-less Messaging
Nicholas Gregory and Stephen Price use a messaging platform between data grids with hub-less messaging. The result is the ability of the data grid clusters to communicate directly within the single application stack.
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Message #296120
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Re: Extend the Data Grid With Hub-less Messaging
Cameron,
Have used multi-way replication approach in a proof of concept project (implementation using the SafeCachePublisher (part of the push-replication pattern)). The data model design is never modified when using the incubator patterns; it was one of the design goals to have a replication framework that doesn't alter the data model.
Have not had the need to use conflict resolution.
thanks,
Nick
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Message #304408
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Maybe not...
Maybe not... I thought you guys were finally going to support multi-master replication, but I guess this is just an invitation to roll our own. We'll stick with Gemfire for the time being. Looking forward to switching when you have something as robust as Gemstone's.
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Message #304726
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Re: Maybe not...
Multi-Master Replication is possible with the hub-less messaging pattern, as any cache cluster can be configured as a CachePublisher and the updates replicated to the other cache clusters. As Nick replied earlier, we have used the SafeCachePublisher to demonstrate the multi-master functionality.
You are correct in some ways when you say "this is just invitation to roll our own", as the approach in the incubator patterns is to provide the components from which a solution can be assembled. This allows a flexible choice of the best solution rather than enforce a "one size fits all" solution onto all the problems encountered. Unfortunately this is not a "shrink wrapped" solution, though hopefully in the near future, some full examples of multi-master replication will become available which will allow people to quickly try the options available and start proving the pattern works.
kindest regards,
Stephen
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Reza Rahman explores the features of the proposed JSR 299, Contexts and Dependency Injection for Java EE (CDI). When approved, it promises to be a key feature of Java EE 6.
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