Thanks for your advice Massimo, but does the scheduler start inmediately when no worker has been used before?
2013/2/1 Massimo Di Pierro <massimo.dipie...@gmail.com>: > All that you ask can be done using the scheduler except that your app does > not start the process, but submits a request to the scheduler. The scheduler > runs the app when a worker is available. This is to prevent spikes in > resource utilization when multiple processes start. The task can communicate > with the app vid database and/or filesystem (which is ok but not 100% > satisfactory). Web2py can monitor and kill running scheduler tasks. > > This works well for most types of tasks but not for tasks that need a lot of > IO with your application. I do not have a satisfactory solution in that > case. You want the tasks to have some way to communicate asynchronously with > the client and this present major issues, some related with security. > > > On Friday, 1 February 2013 10:22:35 UTC-6, José Luis Redrejo Rodríguez > wrote: >> >> Hi, This is a question that has been asked several times in the list, >> and I have also had to implement this kind of app in the past. >> Now I'm also facing to another application where I need to run a >> resource_and_time_consuming process managed from web2py. >> >> The exact problem is: >> - From a web page, a long process must be started >> - The web page must be updated as the process is being done >> - The web page must be able to cancel the process. >> >> In the past I have had to deal with the fact of sessions lockings: >> web2py server doesn't react while the process is being executed. I've >> solved this by using session.forget(response), but this solution >> avoids the use of session variables to update the process in the >> original web page. >> >> I've used background processes, queues, etc, These solutions work when >> time is not an issue, but not when the synchronization between the >> process and the webpage must be fast and accurate >> >> I wonder if someone has a definitive pattern to do this kind of action. >> >> Regards >> José L. > > -- > > --- > 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. > > -- --- 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.
