use a fixed thread pool for March Hare
use a fixed thread pool for March Hare

since messages are long lived, we need lots of threads for processing jobs.

“By default MarchHare will rely on the default RabbitMQ Java client’s executor service, which has a fixed size of 5 threads.”

from : http://blog.rubyrabbitmq.info/blog/page/3/
ireznice/travis-worker,ireznice/travis-worker,final-ci/travis-worker,travis-ci/travis-worker,gavioto/travis-worker,travis-ci/travis-worker,final-ci/travis-worker,gavioto/travis-worker