Cassandra and EventMachine
I spent this past weekend adding eventmachine support for the Cassandra gem. We’re using Cassandra at OneSpot as our next-gen data store and need EM support. They were nice enough to pull my changes yesterday so the next release of the
cassandra gems should work in EM. You just need to do this:
require 'thrift_client/event_machine' EM.run do Fiber.new do @twitter = Cassandra.new('Twitter', "127.0.0.1:9160", :transport => Thrift::EventMachineTransport, :transport_wrapper => nil) @twitter.clear_keyspace! EM.stop end.resume end
The key is the
:transport_wrapper options which override the default, Socket-based implementation. Like all of my EventMachine code, this requires Ruby 1.9.