This is a situation similar to one I had in mind when I wrote the Riak -> RabbitMQ integration. Think of it as a distributed database trigger. It is a post-commit hook, as Russell mentions being the way to achieve what you're looking for, but this post-commit hooks sends out an AMQP message telling subscribers about new data coming into Riak.
https://github.com/jbrisbin/riak-rabbitmq-commit-hooks Thanks! Jon Brisbin http//jbrisbin.com ----- Original Message ----- > From: "Eric Fong" <eri...@gmail.com> > To: riak-users@lists.basho.com > Sent: Wednesday, November 16, 2011 8:59:00 PM > Subject: Listen to Put Event in Riak > Hi > I have Riak servers A, B and C. > As I know, assume I put my data into Riak server A via HTTP > interface, > I will hashed and determined to be stored in some other servers. May > be finally stored into B and C. > What I want is listen to the upload event. > And one and only one of them A, B, C kick off some external process. > Any API for that ? > Or I should have watching processes in all A, B, C servers (will have > race condition and locking problem)? > Sorry, I am new to Riak. I may miss some important components. > Please point that out to me. > Thanks > -- Best Regards, > Eric Fong > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
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