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  1. ActiveMQ
  2. AMQ-3274

duplicate messages on Temporary Topics in network of brokers

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 5.4.2
    • Fix Version/s: 5.6.0
    • Component/s: Broker
    • Labels:
      None
    • Patch Info:
      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. tempTopicDups.patch
          3 kB
          Arthur Naseef
        2. AMQ3274Test.java
          20 kB
          Arthur Naseef

          Activity

            People

            • Assignee:
              rajdavies Rob Davies
              Reporter:
              artnaseef Arthur Naseef
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              Dates

              • Created:
                Updated:
                Resolved: