iterate over cache keys in shared cache

Question

Is it possible to iterate over the cache keys in Shared Cache?

Does the number of regions influence the performance of the shared cache? ie. can I have a 1-2000 regions without performance degradation?

Answer 1

Hi ladeak,

If you take a look at the DataCache Members MSDN page you can see that it does have methods that enables you to iterate through your cache (shared or not):

	GetObjectsByAllTags	Gets an enumerable list of all cached objects in the specified region that have all the same tags in common.
	GetObjectsByAnyTag	Gets an enumerable list of all cached objects in the specified region that have any of the same tags in common.
	GetObjectsByTag	Gets an enumerable list of all cached objects in the specified region that have the specified tag.
	GetObjectsInRegion	Gets an enumerable list of all cached objects in the specified region.

There are performance considerations when using BulkGet, although it doesn't mention anything about multiple regions affecting performance.

Hope this helps!

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Cheers, Carlos Sardo

Answer 2

And by intelisens you also get:

Summary:
//     Gets an enumerable list of all cached objects in the specified region that
//     have all the same tags in common. Applies to Windows Server AppFabric only.

Are there any constraints for the number of regions?

Answer 3

Hi,

I suggest you look at this article with Azure Cache Regions and Tagging:

http://msdn.microsoft.com/en-us/library/windowsazure/hh914155.aspx

Hope this helps.

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Answer 4

The article posted specifically says that it does not apply to shared cache. Is there a way to either iterate or simply get all items in a shared cache?

Answer 5

I have seen no opportunity for this. Try to use the Cache Perview. It is even free.