At the moment, I'm mostly interested in knowing how to use taskqueue to set up a background email notification system. My web2py app is for group collaboration and there are situations where all members of a group needed to be notified of changes.
The taskqueue API seems straightforward, but it would help to see a working example of its use and configuration in web2py. Can it be really simple, e.g. enqueueing a controller URL that accesses a table in my app containing email addresses and messages to be sent? On Sat, Aug 28, 2010 at 10:19 AM, Kevin <[email protected]> wrote: > Yeah, the gae cron is a lot different than the web2py cron (which is > based on traditional crons), because web2py supports any process or > internal controller, while GAE only support calling relative URLs in > their cron. > > In any case, it'd be nice to have a compatibility layer -- if you > don't need anything more than what GAE's method provides (calling some > internal controller's function), then perhaps we can make web2py > support cron.yaml in non-gae deployments, to where it essentially > loads the GAE cron jobs as though they were ** tasks? > > On Aug 28, 7:21 am, mdipierro <[email protected]> wrote: > > No but cron does not work on gae either. On gae you can use taskque. > > > > On Aug 28, 7:25 am, Michael Ellis <[email protected]> wrote: > > > > > Massimo, can the technique described in the book be used on GAE? > > > Thx, > > > Mike > > > > > On Aug 27, 10:23 pm, Bruno Rocha <[email protected]> wrote: > > > > > > Thanks Massimo. > > > > , > > > > > > 2010/8/27 mdipierro <[email protected]> > > > > > > > Run the web server with -N (no cron) and run a separate backrgound > > > > > process for cron. Anyway, there is no way to control how much > memory > > > > > cron consumes if a cron task takes longer than expected. It is > safer > > > > > not to use cron (-N) and use this instead: > > > > > > > > http://www.web2py.com/book/default/chapter/04#Background-Processes-an... > > > > > > > Massimo > > > > > > > On Aug 27, 7:18 pm, Bruno Rocha <[email protected]> wrote: > > > > > > Hi, > > > > > > > > I am running a web2py application at my home server, > > > > > > that is published and I have some clients using for accurracy > tests. > > > > > > > > But , every 3 hours+- the server fails with the message > > > > > > > > Exception in thread Thread-20: > > > > > > > > Traceback (most recent call last): > > > > > > > > File "/usr/lib/python2.6/threading.py", line 532, in > __bootstrap_inner > > > > > > > > self.run() > > > > > > > > File "/home/bruno/web2py/gluon/newcron.py", line 206, in run > > > > > > > > shell=self.shell) > > > > > > > > File "/usr/lib/python2.6/subprocess.py", line 633, in __init__ > > > > > > > > errread, errwrite) > > > > > > > > File "/usr/lib/python2.6/subprocess.py", line 1049, in > _execute_child > > > > > > > > self.pid = os.fork() > > > > > > > > OSError: [Errno 12] Do not possible to allocate memory > > > > > > > > I can see newcron.py is the problem there, but I need to use > cron, > > > > > > this could be a problem with my OS or machine, or it is a Rocket > problem? > > > > > > > > -- > > > > > > > >http://rochacbruno.com.br > > > > > > -- > > > > > >http://rochacbruno.com.br > > > > >
