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ARA running as a WSGI application highlighted the fact that we don't currently fork succifient processes to handle the different calls. In our specific context, logs.o.o's mod_wsgi is always busy because logstash is hitting it. The default settings with the increased load from ARA aren't able to keep up. These values are being inspired by the puppet-openstacklib work for their WSGI implementation [1]. [1]: http://git.openstack.org/cgit/openstack/puppet-openstacklib/tree/manifests/wsgi/apache.pp Change-Id: If3e338f412771c178f064602081256b6abeffc28