Comment 2 for bug 1068022

We had a discussion about this a few months back in IRC. Here's an excerpt from the log:

 http://pastebin.ubuntu.com/1297138/

It is expected for each worker _process_ to maintain 2 DB connections: 1 for job_init and 1 for reslt_writer.

The connection for `reslt_writer` is used for writing calculation results directly to the DB. The connection for `job_init` is used to check job status prior to task execution.