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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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Details

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

    • Reproduced in OpenShift.

    • CR1
    • CR2
    • Hide

      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.

    Description

      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.

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          relates to

          Bug - A problem that impairs or prevents the functions of the product. RHPAM-1149 Synchronization issue for concurrent registrations in Smart router

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

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