job processor job execution order question

[lornemartin]

Hi, 

  I am having a bit of trouble understanding how the job processor executes jobs.  I understand from this post that I can't depend on the job priority field to execute certain jobs in a certain priority.  But my question is, can I depend on Job Processor  in always executing the jobs in the order of the IDs? For example will job # 55996 for sure execute before job #55997, or not?  It seems to be me it will, but I'm not sure if I can count on it or not.

 

[minkd]

Generally speaking, no.

If you have dependencies between jobs such that job A needs to be executed before job B, then the best way to do that is to have job A's handler queue job B once it has completed.  For instance, this is what vault does with property sync and dwf update jobs.

If there is only one job processor (and I would not count on that!), then jobs would be processed in the order that they are queued, although jobs with higher priority will move ahead of jobs with lower priority.

-Dave