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  1. AMQ Broker
  2. ENTMQBR-9035

Inconsistent and Negative Message Counts when the Broker is Paging with Mirrors

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
    • None
    • AMQ 7.12.0.GA
    • broker-core
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      General steps for reproducing:

      • Configure and start the broker
      • Create a multicast address with 2 durable (offline) subscriptions
      • Start a producer to the multicast address and let it run for a few minutes to drive the broker into paging
      • Connect the subscribers and start consumption
      • Restart the broker at intervals of 90 seconds or so
      • Check the queue stat output for the broker and observe the strange / negative counts
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      General steps for reproducing: Configure and start the broker Create a multicast address with 2 durable (offline) subscriptions Start a producer to the multicast address and let it run for a few minutes to drive the broker into paging Connect the subscribers and start consumption Restart the broker at intervals of 90 seconds or so Check the queue stat output for the broker and observe the strange / negative counts
    • Customer Escalated

      We are seeing inconsistent counts that sometimes go negative when the broker is paging and is restarted. This is with the candidate release for AMQ 7.12.0.

      Example:

      Connection brokerURL = tcp://mqperf-broker-ss-0:61616
|NAME                     |ADDRESS                  |CONSUMER_COUNT|MESSAGE_COUNT|MESSAGES_ADDED|DELIVERING_COUNT|MESSAGES_ACKED|SCHEDULED_COUNT|ROUTING_TYPE|
|DLQ                      |DLQ                      |0             |0            |0             |0               |0             |0              |ANYCAST     |
|ExpiryQueue              |ExpiryQueue              |0             |0            |0             |0               |0             |0              |ANYCAST     |
|activemq.management.7c...|activemq.management.7c...|1             |1            |1             |1               |0             |0              |MULTICAST   |
|activemq.management.7e...|activemq.management.7e...|1             |1            |1             |1               |0             |0              |MULTICAST   |
|activemq.management.9b...|activemq.management.9b...|1             |0            |0             |0               |0             |0              |MULTICAST   |
|sub1.amqp-demo-topic:g...|amqp-demo-topic          |5             |-19712405    |1517415343    |520             |11891         |0              |MULTICAST   |
|sub2.amqp-demo-topic:g...|amqp-demo-topic          |5             |-7218885     |1538896391    |520             |11370         |0              |MULTICAST   |

              Unassigned Unassigned
              rhn-support-dhawkins Duane Hawkins
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                Created:
                Updated:
                Resolved: