Hi.
There must be something wrong with what you expect.
The scheduler is an ASYNC process, meaning that - usually - trying to fetch
the result in the same request that queued it is a wrong idea in so many
ways that should be obvious.
That being said, this works without any issues.
models/scheduler.py
def add(a,b):
return a + b
from gluon.scheduler import Scheduler
mysched = Scheduler(db)
controllers/default.py
def index():
thetask = mysched.queue_task('add', pargs=[3,4])
db.commit() #otherwise the scheduler process can't see it
result = None
task_id = None
while 1:
intermediate = mysched.task_status(thetask.uuid, output=True)
if intermediate.result:
result = intermediate.result
task_id = thetask.uuid
break
time.sleep(1)
return dict(res=result, task_id=task_id)
On Wednesday, May 28, 2014 5:55:20 PM UTC+2, Cory wrote:
>
> Hi,
> I am having trouble getting the run_result after web2py has finished a
> task using web2py's scheduler.
> The code below is what I am using. The trouble I am having is grabbing the
> result once the result is
> ready. Do any of you know how to get the run_result from a task once the
> task has finished? right now
> when I try to get the run_result I get a "None" value because I try to get
> the result before it is ready.
> The task can take a couple of seconds to finish. I have tried many
> different ways to get the result once
> it is ready. For instance, creating a while loop that checks to see if the
> task status has changed to
> "completed" then grab the result, but that does not work. Any ideas? I
> have been stuck on this far too long.
>
> task2 = sched.queue_task('upsQuote', pargs = [session.Weight,
> session.OrigZip, session.DestZip], timeout = 5, start_time = request.now)
> #add the task
> task_status2 = sched.task_status(task2.uuid, output=True) #
> get the task status
> result2 = task_status2.scheduler_run.run_result
> # get the result from the finished task
>
>
>
--
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)
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