[chatmasta]

Not the OP, but maybe he wanted to keep the install as simple as possible without requiring something like redis. I also haven't looked at the code, but a queue per process is still useful as long as the results can be accessed from any process. Not sure if this is the case. If not, you would seem to be right, in that subsequent requests after "queuing" the job could go to another process/server not aware of the queued job.