Description of problem:
There is no unique identifier to correlate the logging per API request.
See the logging fragment below.
- There is a Content View Publish requested
- Followed shortly by a call to Tasks
- Then we see the Tasks "Completed" response
- Then we see the another "Completed" response, for which we _think_ it it related to the Publish response. But this might also be from an other concurrent request

2015-09-21 09:54:01 [I] Processing by Katello::Api::V2::ContentViewsController#publish as */*
2015-09-21 09:54:01 [I]   Parameters: {"per_page"=>9999, "api_version"=>"v2", "id"=>"38", "content_view"=>{}}
2015-09-21 09:54:01 [I] Authorized user hoici(hoici )
2015-09-21 09:54:01 [I] Processing by ForemanTasks::Api::TasksController#bulk_search as */*
2015-09-21 09:54:01 [I]   Parameters: {"per_page"=>9999, "searches"=>[{"type"=>"task", "task_id"=>"eba81e76-2642-4f42-937b-ab6b08c6c79b"}], "task"=>{}}
2015-09-21 09:54:01 [I] Authorized user hoici(hoici )
2015-09-21 09:54:02 [I] Completed 200 OK in 1499ms (Views: 1.9ms | ActiveRecord: 19.1ms)
2015-09-21 09:54:06 [I]   Rendered text template (0.0ms)
2015-09-21 09:54:06 [I] Completed 204 No Content in 25023ms (Views: 5.6ms | ActiveRecord: 35.7ms)

The more concurrent actions are handled by Sat6 the more the logging will be interwoven and harder to correlate which logging belongs together.



Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. Start 20 Concurrent ContentView publish actions
2. Query the Tasks controller
3.

Actual results:
Unclear which logging belongs to which request

Expected results:
Unique identifier prefixing the logging, e.g. for the above example:

2015-09-21 09:54:01 [I][Req 12345] Processing by Katello::Api::V2::ContentViewsController#publish as */*
2015-09-21 09:54:01 [I][Req 12345]   Parameters: {"per_page"=>9999, "api_version"=>"v2", "id"=>"38", "content_view"=>{}}
2015-09-21 09:54:01 [I][Req 12345] Authorized user hoici(hoici )
2015-09-21 09:54:01 [I][Req 67890] Processing by ForemanTasks::Api::TasksController#bulk_search as */*
2015-09-21 09:54:01 [I][Req 67890]   Parameters: {"per_page"=>9999, "searches"=>[{"type"=>"task", "task_id"=>"eba81e76-2642-4f42-937b-ab6b08c6c79b"}], "task"=>{}}
2015-09-21 09:54:01 [I][Req 67890] Authorized user hoici(hoici )
2015-09-21 09:54:02 [I][Req 67890] Completed 200 OK in 1499ms (Views: 1.9ms | ActiveRecord: 19.1ms)
2015-09-21 09:54:06 [I][Req 12345]   Rendered text template (0.0ms)
2015-09-21 09:54:06 [I][Req 12345] Completed 204 No Content in 25023ms (Views: 5.6ms | ActiveRecord: 35.7ms)


Additional info:
See also BZ1264324 for Pulp logging, that is also missing a unqiue identifier to correlate the logging messages