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  1. ActiveMQ Classic
  2. AMQ-3274

duplicate messages on Temporary Topics in network of brokers

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Details

    • Bug
    • Status: Resolved
    • Critical
    • Resolution: Fixed
    • 5.4.2
    • 5.6.0
    • Broker
    • None
    • Patch Available

    Description

      Creating a network of brokers, duplicate messages are being seen on Temporary Topics.

      The network configuration used is as follows:

      <networkConnectors>
      <networkConnector name="nw1_queues_from_nw2" uri="static:(tcp://127.0.0.1:60002)"
      duplex="true" conduitSubscriptions="false" dynamicOnly="true"
      networkTTL="7" suppressDuplicateQueueSubscriptions="true"
      decreaseNetworkConsumerPriority="true"

      bridgeTempDestinations="true"
      >
      <excludedDestinations>
      <topic physicalName=">" />
      </excludedDestinations>
      </networkConnector>

      <networkConnector name="nw1_topics_from_nw2" uri="static:(tcp://127.0.0.1:60002)"
      duplex="true" conduitSubscriptions="true" dynamicOnly="true"
      networkTTL="7" suppressDuplicateQueueSubscriptions="true"
      decreaseNetworkConsumerPriority="true"

      bridgeTempDestinations="true"
      >
      <excludedDestinations>
      <queue physicalName=">" />
      </excludedDestinations>
      </networkConnector>
      </networkConnectors>

      Note there are 2 duplex connections between the brokers. Changing to non-duplex connections, the problem goes away with 2 brokers in the network, but reappears when a 3rd broker is added.

      The problem only affects temporary Topics; normal Topics work fine.

      A patch will be attached. Also, a test case will be attached when it is available.

      Attachments

        1. AMQ3274Test.java
          20 kB
          Arthur Naseef
        2. tempTopicDups.patch
          3 kB
          Arthur Naseef

        Activity

          People

            rajdavies Robert Davies
            artnaseef Arthur Naseef
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            Dates

              Created:
              Updated:
              Resolved: