Comments on Tobias Lekman - Blog: Cache Dependencies in SharePoint

Hi Donnel, The method described in this post ensu...

2011-05-15T21:45:31.874+01:00

Hi Donnel,

The method described in this post ensures that the cache is invalidated when a new item is posted to the list. The problem with caching is that the cache does not refresh when needed but times out instead. This code was used on a SharePoint 2007 public web site in order to cache news articles but allow for instant publishing.

There are several ways of achieving this - this was just one example. Since this was released, we have heaps of interesting cache alternatives such as Velocity.

I haven't seen an update in a while, but it looked very cool in CTP. http://msdn.microsoft.com/en-us/magazine/dd861287.aspx

Hi Tobias, Wouldnt the OOTB PortalSiteMapProvide&...

2011-05-15T05:08:46.639+01:00

Hi Tobias,

Wouldnt the OOTB PortalSiteMapProvide's GetCachedListItemsByQuery() method suffice if you need a way to cache queries to a SharePoint list.Let me know your thoughts.

Cheers,
Donnel

Well, that's why you can change the polling pe...

2009-09-03T14:26:53.541+01:00

Well, that's why you can change the polling period as in the example above. You must obviously do some load testing/tracing to find out what the optimal balance would be for your application. There is always a balance between latest content and performance that needs to be fine tuned. In short - if you have enough traffic on your site to need something like this, then a check every 10 seconds will take very little processing compared to rendering the content from live data on each request.

Will the frequent creation of spsite and spweb obj...

2009-09-03T13:40:31.154+01:00

Will the frequent creation of spsite and spweb objects to check for modifications be a problem?
Any thoughts on the same