Mosh, > Thanks for the reply. In the past, I've always done things via the > route you suggested (a single task working off of a queue). My > concern here, and it looks like I left this out of the original post, > is that the tasks will be time-sensitive (but not time-critical). > That is, if the task is set to run at 5:00 PM, it should run as close > to 5:00 PM as possible (think calendar alert "sensitive" vs. giving > someone scheduled medicine "critical").
You might want to consider running these scheduled tasks on a separate CF instance--that way the threads tied up by background tasks are going to be tying up threads of your visitors. Some other things you could try: 1) Run the background task every 60 seconds. If there are no tasks to run the overhead should really be essentially nil (you should only be dealing with a few milliseconds for any empty queue query.) 2) Use <cfthread /> to process multiple background tasks asynchronously. That way a single long running task won't bog down all the tasks scheduled to run on the current iteration. 3) Run multiple scheduled events (this might be better if you're running a separate instance for scheduled tasks.) You can assign tasks in a round robin fashion, so each background script would run a different set of tasks. 4) Do an asynchronous HTTP request to process the task. This is a good way to just trigger off a bunch of requests to be processed that will start right away. However, I'd only do this if you're running a separate instance for scheduled tasks. -Dan -- Dan G. Switzer, II [email protected] http://blog.pengoworks.com/ âââââââ ââ âââââ âââââââ â âââ â âââââ ââ â âââ â â âââ â ââ â âââ â âââ â âââââââ âââ â â â âââââââ ââââââââ âââââ âââââ âââ ââââââââââââââ âââââ ââ ââââââââââââââ âââââ ââââ ââ ââ â ââââââââ âââââââ ââ ââ â ââ âââ ââââââââ â âââââââ âââ âââââ â âââââ â âââ â âââ ââ ââââââ ââ â âââ â â ââ ââ âââ âââ â âââââââ ââ ââ ââ â ââ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:345023 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
