appfabric cache clear all objects

Question

Is there a suggested method to just clear out all the objects in a DataCache ?

I could use the DataCache.GetObjectsByAllTags method but that required a region, which i cant use since i need to share objects among multiple cache hosts.

Answer 1

There isn't a simple .Clear() on the DataCache object but using the following will clear the cache on the Appfabric hosts:

/* Assumes DataCache as a properly set up Microsoft.ApplicationServer.Caching.Client.DataCache object */

public void Clear()
{
   Parallel.ForEach(DataCache.GetSystemRegions(), region =>
   {
      DataCache.ClearRegion(region);
      var sysRegion = DataCache.GetSystemRegionName(region);
      DataCache.ClearRegion(sysRegion);
   });
}

The problem is, if you have DataCacheLocalCacheProperties set in your configuration you'll still be pulling items from local replica until timeout or notification occurs. I'm still looking for a way to invalidate items in the local replica immediately.

Answer 2

Have a read of this answer: ASP.Net AppFabric Cache missing Flush/Clear and Count/GetCount methods?