What is the maximum length of base64 encoded string that can be added to Azure queue?

c# encoding azure azure-queues
Gilad Gat picture Gilad Gat · Nov 27, 2012 · Viewed 7.7k times · Source

I need to send compressed Base64 data over an Azure queue, which has a limitation of 64K.
My code compresses the data and then encodes it as a Base64 string.
I verify the compressed and encoded string does not exceed 64000 bytes (see encodedLen below), however, my code crashed when I tried to add a message of ~57,000 bytes . 

var byteString = Encoding.UTF8.GetBytes(articleDataToSend);  
var compressed = QuickLZ.compress(byteString, 1);  
var encoded = Convert.ToBase64String(compressed);  

var encodedLen = Encoding.UTF8.GetByteCount(encoded);  
if(encodedLen < 64000)
{
    QueueMessage(_nlpInputQueue, encoded);
}

I'm using Visual Studio 2012 and .Net 4.5.
What am I missing here?

Answer

Igorek picture Igorek · Nov 27, 2012

Maximum message size is 48k when using Base64 encoding http://msdn.microsoft.com/en-us/library/windowsazure/hh767287.aspx

Use Azure Service Bus Queues and you can get up to 256k

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