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  1. WildFly
  2. WFLY-7267

[Proxy] No failover on empty response from node

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Details

    • Bug
    • Resolution: Done
    • Major
    • 11.0.0.Alpha1
    • None
    • Web (Undertow)
    • None
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      1. Start worker with servlet that has System.exit(1) call inside
      2. Start Eap as balancer
      3. Make request to servlet via balancer (curl BALANCER_ADDRESS:BALANCER_PORT/SERVLET)
      Expected :
      response with 50x response code
      Actual:
      No response, curl hang

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      1. Start worker with servlet that has System.exit(1) call inside 2. Start Eap as balancer 3. Make request to servlet via balancer (curl BALANCER_ADDRESS:BALANCER_PORT/SERVLET) Expected : response with 50x response code Actual: No response, curl hang

    Description

      Undertow balancer do not recognizes empty response as an error.
      Can happen when JVM got killed when handling request (System.exit())

      @Override
        public void failed(final HttpServerExchange exchange) {
            final long time = System.currentTimeMillis();
            if (tries++ < maxRetryAttempts) { 
            ...

      Undertow make curl hang.
      Apache httpd correctly recognizes empty response as error and starts fail over method. If unsuccessful, 50x is returned in response.

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          Bug - A problem that impairs or prevents the functions of the product. JBEAP-6005 [Proxy] No failover on empty response from node

          • 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.
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              sdouglas1@redhat.com Stuart Douglas
              sdouglas1@redhat.com Stuart Douglas
              Jan Kašík Jan Kašík
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                Created:
                Updated:
                Resolved: