On Jul 27, 2:07 pm, Dave Forgac <tylerd...@gmail.com> wrote:
> I am trying to write an application that will allow a user to launch a
> fairly long-running process (5-30 seconds). It should then allow the
> user to check the output of the process as it is generated.  The
> output will only be needed for the user's current session so nothing
> needs to be stored long-term.  I have two questions regarding how to
> accomplish this:
>
> 1. What is the best way to launch a background process such as this
> with a Pylons controller?
>
> 2. What is the best way to get the output of the background process
> back to the user?

Often the better way of doing this is to run a separate persistent
long running process which has an XML-RPC interface and have the web
application communicate with the back end process using XML-RPC. This
avoids all the mess that can often occur with forking off a web
application process.

The back end might then perform the work by using a thread pool which
consumes the queued up requests. The XML-RPC interface would still be
active and allow for monitoring of state of a queued work item, or
even stopping it if worker thread has a way to be flagged through the
record for the work item.

Graham
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups 
"pylons-discuss" group.
To post to this group, send email to pylons-discuss@googlegroups.com
To unsubscribe from this group, send email to 
pylons-discuss+unsubscr...@googlegroups.com
For more options, visit this group at 
http://groups.google.com/group/pylons-discuss?hl=en
-~----------~----~----~----~------~----~------~--~---

Reply via email to