testqueue3(Enable Batched Operation, Requires Duplicate Detection, Requires Session, Enable Partition): Add new message twice the message count turn to 20.testqueue2(Enable Batched Operation, Requires Duplicate Detection, Requires Session): send 10 messages first, and send another same 10 messages, here also display 10 messages.testqueue (Enable Batched Operation, Requires Duplicate Detection): send 10 messages first, then immediately send another same 10 messages, it still displays 10 messages.To find the message, I sent 10 message each time first. SendClient.SendBatch(Enumerable.Range(0, 10).Select(n =>Ĭonsole.WriteLine("test my message n QueueClient sendClient = QueueClient.CreateFromConnectionString(connectionString, queueName) Static string queueName = "testqueue3" // testqueue,testqueue2 Otherwise Service Bus returns an invalid operation exception. From the above document, when enable both Partition key and Session ID, the value of them need to be same. The Session ID here set with a random value. The different in this program used in each time, just the BrokeredMessage SessionID and PartitionKey that in red color. testqueue3 : Enable Batched Operation, Requires Duplicate Detection, Requires Session, Enable Partition.testqueue2 : Enable Batched Operation, Requires Duplicate Detection, Requires Session.testqueue : Enable Batched Operation, Requires Duplicate Detection.At first time all of them have 0 messages. There are three queue I used, testqueue, testqueue2, testqueue3. Is that a correct statement? Let’s do a test! This means the duplicate detection only can work when SessionID or PartitionKey are not be set. “If the queue or topic has the RequiresDuplicateDetection property set to true and the SessionId or PartitionKey properties are not set, then the MessageId property value serves as the partition key” But what’s the relationship between them?įrom the meaning of Duplication detection, we know that there is a MessageId of each message. So, from these above knowledges, we know that Azure Service Bus Queue and Topic/Subscription can enable for Duplicate Detection, Partitions and Sessions. Any sender can create a session when submitting messages into a topic or queue by setting the SessionId property to some application-defined identifier that is unique to the session. There are two patterns of it, FIFO and request-response pattern. Microsoft Service Bus Session enable joint and ordered handling of unbounded sequences of messages.Partition key can be used in some scenarios, such as sessions or transactions, require messages to be stored in a specific partition. Enable partitioning the overall throughput will separate to different partition. Service Bus Partitions enable queues and topics or message entities to be partitioned across multiple message brokers and messaging stores.Enabling Duplicate detection helps to ensure that a duplicate message, which has the same message Id cannot be sent into a messaging entity during a specified time.Before we start, please read these document about Duplicate Detection, Partitioned queues and topics and Message Sessionsįrom the above Pre-requirements, we learn the followings
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