Careful!

You are browsing documentation for a version of Kuma that is not the latest release.

Looking for even older versions? Learn more.

CircuitBreaker

  • sources (required, repeated)

    List of selectors to match dataplanes that are sources of traffic.

    • match (optional)

      Tags to match, can be used for both source and destinations

  • destinations (required, repeated)

    List of selectors to match services that are destinations of traffic.

    • match (optional)

      Tags to match, can be used for both source and destinations

  • conf (required)

    • interval (optional)

      Time interval between ejection analysis sweeps

    • baseEjectionTime (optional)

      The base time that a host is ejected for. The real time is equal to the base time multiplied by the number of times the host has been ejected

    • maxEjectionPercent (optional)

      The maximum percent of an upstream cluster that can be ejected due to outlier detection, has to be in [0 - 100] range

    • splitExternalAndLocalErrors (optional)

      Enables Split Mode in which local and external errors are distinguished

    • detectors (optional)

      • totalErrors (optional)

        Errors with status code 5xx and locally originated errors, in Split Mode - just errors with status code 5xx

        • consecutive (optional)
      • gatewayErrors (optional)

        Subset of ‘total’ related to gateway errors (502, 503 or 504 status code)

        • consecutive (optional)
      • localErrors (optional)

        Takes into account only in Split Mode, number of locally originated errors

        • consecutive (optional)
      • standardDeviation (optional)

        • requestVolume (optional)

          Ignore hosts with less number of requests than ‘requestVolume’

        • minimumHosts (optional)

          Won’t count success rate for cluster if number of hosts with required ‘requestVolume’ is less than ‘minimumHosts’

        • factor (optional)

          Resulting threshold = mean - (stdev * factor)

      • failure (optional)

        • requestVolume (optional)

          Ignore hosts with less number of requests than ‘requestVolume’

        • minimumHosts (optional)

          Won’t count success rate for cluster if number of hosts with required ‘requestVolume’ is less than ‘minimumHosts’

        • threshold (optional)

          Eject host if failure percentage of a given host is greater than or equal to this value, has to be in [0 - 100] range

    • thresholds (optional)

      • maxConnections (optional)

        The maximum number of connections that Envoy will make to the upstream cluster. If not specified, the default is 1024.

      • maxPendingRequests (optional)

        The maximum number of pending requests that Envoy will allow to the upstream cluster. If not specified, the default is 1024.

      • maxRetries (optional)

        The maximum number of parallel retries that Envoy will allow to the upstream cluster. If not specified, the default is 3.

      • maxRequests (optional)

        The maximum number of parallel requests that Envoy will make to the upstream cluster. If not specified, the default is 1024.

Last Updated: 11/4/2022, 19:20:08 PM