Problem description
The job acquisition does not order the jobs in deterministic way when execution jobs. This can lead to problems like

• undeterministically long period of time between the moment in time a job is due and the job is actually executed,
• worst case: the starvation of jobs

Other ramifications of this behavior:

• timer jobs are more inaccurate then they need to be

Solution idea
Optionally order jobs by due date where message jobs has their creation time as due date set.