![]() Now, let us assume, 2 different client applications issue 2 gets and 2 messages are dequeued of the queue. Next time, I issue get, hello3 will be the next in position to be dequeued and then hello4, hello5, hello1, hello2 and so on. Message put back to the end of queue with an updated dequeue count in the same order, hello1 and hello2. Ideally, assuming all the messages are issued “get” command with a same visibility timeout, it will be added fifo as usual as shown below.īelow case, I put hello1 to hello5 and issued 2 gets. Short answer: Application crashes while processing a message, lead to visibility timeout expiry and the order of messages queued will differ based on whether there are other messages with more visibility timeout. Please find more details regarding your question below. Want a reminder to come back and check responses? Here is how to subscribe to a Kumar Dalai Thank you for your patience while I was looking into this. ![]() Original posters help the community find answers faster by identifying the correct answer. Please let us know if you have any further questions and we will be glad to assist you further. At that point, the newly visible message might be placed in the queue to be dequeued again. When the visibility timeout expires, the message becomes visible again on the queue for another worker to dequeue it. For example, when the visibility-timeout duration of a message expires because a client application crashed while processing a message. Messages in Storage Queues are typically first-in-first-out, but sometimes they can be out of order.Please check this document that compares both the queues: ![]() However, Storage bus queue is able to provide First In First Out (FIFO) capabilities by using message sessions. I understand that you are having issues with Azure Storage Queue where after the Visibility time out expires, the message appears at the end of the queue instead of the top of the queue.Īzure Storage Queue does not provide Ordering guarantees. Kumar Dalai Thank you for reaching out to Microsoft Q&A.
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