Nikita Shupletsov created AMQ-9595:
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             Summary: Durable subscriber receives acknowledge messages if there 
are farther than the pageIn size
                 Key: AMQ-9595
                 URL: https://issues.apache.org/jira/browse/AMQ-9595
             Project: ActiveMQ Classic
          Issue Type: Bug
            Reporter: Nikita Shupletsov
         Attachments: DurableSubscriptionPartialAckTest_test.patch

Let's say we have a topic with 2 durable subscribers:
 *  we send 10000 messages to the topic.
 * First subscriber receives all messages, and acknowledges every second of 
them(0th,  2nd, 4th and so on)
 * Second subscriber doesn't acknowledge anything
 * we restart the broker
 * first subscriber connects to the broker and starts receiving messages
 * at first it receives correct messages(1st, 3rd, 5th and so on), but at some 
point it starts receiving all messages(400th, 401st, 402nd and so on).

See a test in the attachment



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