Hi,
Wanted to know if there is any limitation on number of queue creation?
You can create as many queues as you want provided the storage space occupied by the queues does not exceed the overall storage quota.
Is there any billing for empty queue created?
I believe you'll be charged for the storage space occupied by your queues.
Max number of queue that we can read at once is 5000. How more than 5000 queue can be read.
When there are more than 5000 queues in your storage account and you request storage service to return queues list, along with the queues storage service also returns a continuation token. You can use that token to get next set of queues. You can read more
about listing queues here:
http://msdn.microsoft.com/en-us/library/dd179466.aspx
Hope this helps.
Thanks
Gaurav Mantri
Cerebrata Software
http://www.cerebrata.com