Bridge reconnect failure

Question

          I have setup a durable, exactly-once messaging bridge between two WLS7 (sp4)
          servers:
          <MessagingBridge
          AsyncEnabled="true"
          Name="MyMessaging Bridge 2"
          QOSDegradationAllowed="false"
          SourceDestination="RemoteTopic"
          Started="true"
          TargetDestination="LocalTopic"
          Targets="devel-server"/>
          The source destination is located on a remote machine, while the
          target destination is located on the same machine as the bridge.
          If I unplug the network cable on the server hosting the bridge for a
          few seconds, the bridge cannot reconnect once I plug it back in:
          InvalidClientIDException: Client id,MessagingBridge.MyMessaging Bridge
          2, is in use.
          The only way to fix the problem is by restarting one of the servers.
          I have tried waiting over an hour, still nothing happens.
          The problem seems to be that the remote server does not detect that
          the connection is dead and therefore regards the "old" subscription as
          active. If I monitor the bridge subscription on the remote server
          while the network cable is unplugged, its "active" field remains
          "true".
          So something is fishy here. Any ideas what I might have done wrong?
          Regards,
          Mattias
          

Answer 1

Hi Mattias,
          Your diagnosis seems correct. There may be a
          problem at the RMI layer, not the JMS layer (JMS
          layers on top of RMI), as RMI is responsible for
          detecting network failures. So you might try posting
          to the RMI newsgroup - but I further suggest
          contacting customer support. The failure should
          have been detected within a couple of minutes -
          (unless you deliberately configured large timeout
          values for WL's internal networking heartbeats -
          which would be unusual).
          Tom
          Mattias wrote:
          > I have setup a durable, exactly-once messaging bridge between two WLS7 (sp4)
          > servers:
          >
          > <MessagingBridge
          > AsyncEnabled="true"
          > Name="MyMessaging Bridge 2"
          > QOSDegradationAllowed="false"
          > SourceDestination="RemoteTopic"
          > Started="true"
          > TargetDestination="LocalTopic"
          > Targets="devel-server"/>
          >
          > The source destination is located on a remote machine, while the
          > target destination is located on the same machine as the bridge.
          >
          > If I unplug the network cable on the server hosting the bridge for a
          > few seconds, the bridge cannot reconnect once I plug it back in:
          >
          > InvalidClientIDException: Client id,MessagingBridge.MyMessaging Bridge
          > 2, is in use.
          >
          > The only way to fix the problem is by restarting one of the servers.
          > I have tried waiting over an hour, still nothing happens.
          >
          > The problem seems to be that the remote server does not detect that
          > the connection is dead and therefore regards the "old" subscription as
          > active. If I monitor the bridge subscription on the remote server
          > while the network cable is unplugged, its "active" field remains
          > "true".
          >
          > So something is fishy here. Any ideas what I might have done wrong?
          >
          > Regards,
          > Mattias