scheduler.queue_task() simply inserts a record into the scheduler_task table. However, assuming this code is part of an HTTP request, the insert won't get committed until the request is complete. Yet your code then includes a while loop that will not exit until after the insert (and after the task has completed), which will never happen. I suppose you could call db.commit() right after queuing the task, but then what is the point of using the scheduler? The purpose of scheduling a task in the background is so it can happen outside of a single request-response cycle. Yet, if your request waits until the task is complete before returning, you might as well just do the task directly in the request rather than bothering to have the scheduler do it.
Anthony On Friday, January 3, 2014 10:59:29 AM UTC-5, EW wrote: > > I'm having trouble figuring out how to determine when a scheduler task is > done. My code/scheduler task work is working. But when I added this loop, > it does not--when I go into the admin interface and look at the > scheduler_task table, the task is not in the table at all. The printouts > show the task as always being in the QUEUED status. Is this code somehow > blocking the worker from picking up the task? What is the best way to > determine when a task has been completed? > > > q = scheduler.queue_task(read_blox, pvars=dict(json_dir_id=r.id),immediate > =True) #This line alone works without the following code > > task_id = int(q.id) > res = scheduler.task_status(task_id) > > print res > while not res.status == 'COMPLETED': > > res = scheduler.task_status(task_id) > > print res > print 'completed' > > > > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
