If you want to seperate your passengers in first and economy class, this is the relevant guide: http://lwn.net/Articles/317814/ http://lwn.net/Articles/317814/

If you want to seperate your passengers in first and economy class, this is the relevant guide: http://lwn.net/Articles/317814/ http://lwn.net/Articles/317814/ Usually, I recommend that database and queue servers run the database/queue with a priority that makes it unlikely for them to be killed. I had a case where a colleague running a script on a server with high pressure killed the queue, which is unadvisable, even if is crash-safe. Before that, the queue was running for 1.5 years straight.