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azureazure-queues

Azure Queue - Reappearing messages

I have a webjob that gets triggered by queue messages. If the job gets too long, The message reappears on the queue and a new instance of the webjob is triggered consuming the same message. That is not meant to be.

How can set the timespan while a message is hidden on the queue before reappearing?

Solution

  • Azure Queue messages have a visibility timeout value (in seconds), which you can set programmatically at any time, prior to the message becoming visible again.

    You haven't mentioned what language you're coding in, but from a raw REST API standpoint, you just need to do an update message operation (a PUT on the queue message). From the documentation:

    https://myaccount.queue.core.windows.net/myqueue/messages/messageid?popreceipt=<string-value>&visibilitytimeout=<int-seconds>

    Via .net (c#):

    var message = queue.GetMessage();

queue.UpdateMessage(message,
    TimeSpan.FromSeconds(30),
    MessageUpdateFields.Visibility);

    See here for the API call details.