Distributed Concurrency Control

Question

I\'ve been working on this for a few days now, and I\'ve found several solutions but none of them incredibly simple or lightweight. The problem is basically this: We have a cl

Answer 1

We have been developing an open source, distributed synchronization framework, currently DistributedReentrantLock and DistributedReentrantReadWrite lock has been implemented, but still are in testing and refactoring phase. In our architecture lock keys are devided in buckets and each node is resonsible for certain number of buckets. So effectively for a successfull lock requests, there is only one network request. We are also using AbstractQueuedSynchronizer class as local lock state, so all the failed lock requests are handled locally, this drastically reduces network trafic. We are using JGroups (http://jgroups.org) for group communication and Hessian for serialization.

for details, please check out http://code.google.com/p/vitrit/.

Please send me your valuable feedback.

Kamran