will do. in the meantime.... with timeout=0 what are you trying to achieve ?

On Friday, November 21, 2014 12:42:54 PM UTC+1, Francisco Ribeiro wrote:
>
> just create and trigger the following task:
> def schedule_call():
>     import time
>     time.sleep(3600)
>     return 'completed'
>
>
> and queue it like:
> myscheduler.queue_task(schedule_call, timeout=0)
>
> once it's triggered check the CPU load of your python scheduler node and 
> should be 100%.
>
> If this is not enough to reproduce the issue, please let me know, I will 
> see you a full app.
>
> Thank you.
>
> Kind regards,
> Francisco
>
> On Thursday, 20 November 2014 19:42:25 UTC, Niphlod wrote:
>>
>> if you care to post an app that reproduces the behaviour, I'd be glad to 
>> iron out the bug, if there's one.
>>
>> On Thursday, November 20, 2014 12:07:50 PM UTC+1, Francisco Ribeiro wrote:
>>>
>>> thank you,
>>>
>>> a different and yet related problem that I found when I was testing the 
>>> timeout behaviour using a simple task that just does a time.sleep(3000) is 
>>> that this keeps the CPU load of its process close to 100% during the whole 
>>> time. This, however it's not a CPU intensive function and you won't find 
>>> this behaviour if you test it outside of the scheduler. There seems to be 
>>> room for optimisations since this means that a small number of lightweight 
>>> tasks that for some reason need more time to complete, will quickly consume 
>>> CPU.
>>>
>>> Kind regards,
>>> Francisco 
>>>
>>> On Thursday, 20 November 2014 09:57:05 UTC, Niphlod wrote:
>>>>
>>>> the "new task report" line is logged when the status is either 
>>>> COMPLETED or FAILED. 
>>>> These are not the statuses of the task itself, it's the status of the 
>>>> task being returned by the "executor" process, that knows only if the task 
>>>> ended correctly or raised some exceptions. 
>>>> The "finer grained" statuses are "computed" back in the "worker" 
>>>> process (the report_task() routine, to be exact), that knows, e.g., if a 
>>>> task needs to be queued again, etc etc etc
>>>>
>>>> On Thursday, November 20, 2014 4:30:36 AM UTC+1, Francisco Ribeiro 
>>>> wrote:
>>>>>
>>>>> hi,
>>>>>
>>>>> After some debugging, I noticed that when tasks timeout while using 
>>>>> the scheduler, I get an output as follows:
>>>>> DEBUG:web2py.app.myapp:    new task report: FAILED
>>>>> DEBUG:web2py.app.myapp:   traceback: Traceback (most recent call last
>>>>> ):
>>>>>   File "/../web2py/gluon/scheduler.py", line 303, in executor
>>>>>     result = dumps(_function(*args, **vars))
>>>>>   File "applications/myapp/models/db.py", line 337, in schedule_call
>>>>>     time.sleep(3600)
>>>>>   File "/.../web2py/gluon/scheduler.py", line 704, in <lambda>
>>>>>     signal.signal(signal.SIGTERM, lambda signum, stack_frame: sys.exit
>>>>> (1))
>>>>> SystemExit: 1
>>>>>
>>>>> Whilst the timeout behaviour happens just as I expect it to be and 
>>>>> things get stored correctly on the database (scheduler_run.status = 
>>>>> 'TIMEOUT'), this debugging output is somewhat misleading since 'FAILED' 
>>>>> seems to be an alternative state different than 'TIMEOUT' according to 
>>>>> documentation ( 
>>>>> http://www.web2py.com/books/default/image/29/ce8edcc3.png ).
>>>>>
>>>>> Can someone explain to me why this happens? Is it expectable? 
>>>>>
>>>>> Thank you.
>>>>> Kind regards,
>>>>> Francisco
>>>>>
>>>>

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