[wildfly-dev] Cassandra Subsystem

[Brian Stansberry]

One thing we'll need to sort through is the socket configuration. It 
looks like some addresses and ports are being directly configured in the 
subsystem. These should be done via references to socket bindings (for 
server sockets) and outbound socket bindings (for client sockets).

This will complicate things a bit in terms of wiring up the services, 
but it shouldn't be a big deal; we do it lots of places.

On 8/25/14, 4:35 AM, Heiko Braun wrote:
>
> FYI
>
> I started integrating Apache Cassandra [1] into Wildfly. It's a prerequisite for integrating rhq-metrics [2] with Wildfly, but I guess it has a lot of value on it's own.
>
> The integration is done as a subsystem, which can be used to run a a single C* node on a standalone box, but more importantly it allows for launching and managing a complete C* cluster as part of Wildfly managed domain. I've provided example configuration files for both options which can be used  to play around with it and get going.
>
> The current subsystem relies on a patched Cassandra 2.0.6 version. Cassandra isn't designed to be used an embedded library. In particular the CassandraDaemon and some of the core services make heavy use 'System.exit()' calls. In order to embed Cassandra as a managed service, we had to remove some of the code that would otherwise break the service contracts in Wildfly. But I am confident we can find a way to get these changes back into the upstream project. But I haven't discussed all the details with the Apache folks yet.
>
> Overall it's pretty much work in progress, but I think it's good enough to get your hands dirty. You can find the codebase in my github repository:
>
> https://github.com/heiko-braun/wildfly-cassandra
>
> Thoughts and comments are welcome.
>
> /Heiko
>
> [1] http://cassandra.apache.org/
> [2] https://github.com/rhq-project/rhq-metrics
>
>
>
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-- 
Brian Stansberry
Senior Principal Software Engineer
JBoss by Red Hat