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  1. Red Hat Process Automation Manager
  2. RHPAM-1384

ConcurrentModificationException in Smart router when removing Kie servers with same URL

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
    • 7.0.2.GA
    • 7.0.2.GA
    • Kie-Server
    • None

    • Reproduced in OpenShift.

    • CR1
    • CR2
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      Create a Smart router cluster consisting of 2 Smart routers connected using shared config file.
      Start 3 Kie servers and connect them to Smart routers using same URL (reproducing WebSocket configuration and route URL in OpenShift).
      Deploy same container to all 3 Kie servers.
      Stop one Kie server.

      Show
      Create a Smart router cluster consisting of 2 Smart routers connected using shared config file. Start 3 Kie servers and connect them to Smart routers using same URL (reproducing WebSocket configuration and route URL in OpenShift). Deploy same container to all 3 Kie servers. Stop one Kie server.

      The issue happens in clustered Smart router when several Kie servers have same location URL and are connected to the Smart router cluster.
      In case one Kie server disconnects, the Smart router updates shared config file. When the other Smart router loads the updated config file it gets ConcurrentModificationException. The stacktrace from reproducer is in the attachment.

      The reproducer and proposed fix are in the PR.

        1. stacktrace.txt
          2 kB

            ksuta Karel Suta
            ksuta Karel Suta
            Karel Suta Karel Suta
            Karel Suta Karel Suta
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              Created:
              Updated:
              Resolved: