Description of problem:
client request timed out when trying to apply 300+ errata

Version-Release number of selected component (if applicable):
Sat 6.1.5 Compose 3

How reproducible:
Always

Steps to Reproduce:
1. Sync rhel 6 repo, create content view, publish, promote and attach it to activation key
2. Register a client using the above activation key, install katello agent, and run `katello-package-upload` in the client
3. Navigate to Satellite UI -> Content -> Errata -> Select 350+ errata and apply to the content host (Note: the errata are already available in content host's environment, so action is just apply errata and not incremental update)
4. Monitor satellite and the client logs

Actual results:
Client timed out. 

* Satellite error: See attached `production.log error`
* Client error: /var/log/messages: see attached `client var log messages`
* Client yum history: Return-Code    : ** Aborted **. More info in attached `client yum history`

Expected results:
Errata applied without error

Additional info: