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POAzure Service Bus broadcast to all worker role instances
 

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    <p>I am trying to use to Azure Service Bus to broadcast a message from a Web Role to all the instances of a single worker role. This is the code I use to receive messages:</p> <pre><code>// Create the topic if it does not exist already string connectionString = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.ConnectionString"); var namespaceManager = NamespaceManager.CreateFromConnectionString(connectionString); // Configure Topic Settings TopicDescription td = new TopicDescription("CommandTopic"); td.MaxSizeInMegabytes = 5120; td.DefaultMessageTimeToLive = new TimeSpan(0, 0, 1); if (!namespaceManager.TopicExists("CommandTopic")) { namespaceManager.CreateTopic(td); } Random rand = new Random(); double randNum = rand.Next(); if (!namespaceManager.SubscriptionExists("CommandTopic", "CommandSubscription"+randNum)) { namespaceManager.CreateSubscription("CommandTopic", "CommandSubscription" + randNum); } Client = SubscriptionClient.CreateFromConnectionString(connectionString, "CommandTopic", "CommandSubscription" + randNum, ReceiveMode.ReceiveAndDelete); Trace.WriteLine("SUBSCRIPTION: COMMANDSUBSCRIPTION"+randNum); </code></pre> <p>In order to create a separate subscription for each worker role instance (so that all instances receive the message in the topic) I had to use a random number. Is there a way of using some Id of the instance instead of the random number. There is Instance.Id however it is too long to be used as a parameter for the subscription name. Is there a shorter version without using substring? Also, is creating a separate subscription for each instance the proper approach? Previously all instances subscribed to the same subscription and so only 1 instance was getting the message and deleting it from the subscription.</p>
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