travis-ci/travis-cookbooks — comment on commit 9dd192a73db1db1840a59a6b2ce334832152c04d
File:  line 0
By michaelklishin:

Currently you have to start it on your own. We cannot run all the services we provide on boot because there are simply too many of them. When we roll out Cassandra and HBase, for example, we may disable them on boot to not waste RAM and CPU time. But if your projects needs XVFB or HBase, you can start it with 1 line using `before_script`.