Thanks a lot for the response Domenico. I see what I failed to mention in my original question is that each consumer might need a while to process a message from each queue it's handling. In your example, you had auto-acknowledge, making each message being instantly handled by the consumer.
Is your example modifiable to make it so that a message takes about 1 second to be handled and acknowledged, and the consumer doesn't receive the next message for the same queue before that happens? If so, I'm certain our use case can be handled by artemis. fre. 3. jul. 2020 kl. 13:02 skrev Domenico Francesco Bruscino < [email protected]>: > Hi Kristinn, > > I have just answered the same question on stackoverflow: > > https://stackoverflow.com/questions/62701025/activemq-artemis-handle-messages-sequentially/62705413#62705413 > > Regards, > Domenico > > Il giorno gio 18 giu 2020 alle ore 10:51 Kristinn Thor Johannsson < > [email protected]> ha scritto: > > > Hi, I've tried to ensure that a consumer on a queue (with message > grouping) > > will only receive one message at a time from each queue it's handling, > > until the consumer acknowledges said message. > > > > For a test I've set up ActiveMQ Artemis and have 3 consumers on a > wildcard > > EXAMPLE.* , and one publisher posting 10 messages to each of 5 queues: > > EXAMPLE.1 - EXAMPLE.5 . What I'm seeing is that each of the consumers > > receive messages from the queues immediately. I've tried using the > consumer > > window size setting (as 0) as I thought that would help me only deliver > one > > message at a time from each queue, but that doesn't seem to work. Have I > > misunderstood that setting? If so, are there any other settings I should > be > > looking at to help me get this working? > > > > The particular use case I'm trying to achieve is that I'll possibly have > > many queues and a couple of consumers. And it's important that messages > in > > each of the queues are handled sequentially, but all queues can be > handled > > in parallell > > > > -- > > -Kristinn Thor > > > -- -Kristinn Thor
