What will be overridden by retry_budget in config.cluster.v3.CircuitBreakers.Thresholds

[YvesZHI]

I'm reading the doc about the circuit breaker: https://www.envoyproxy.io/docs/envoy/latest/api-v3/config/cluster/v3/circuit_breaker.proto.html#envoy-v3-api-msg-config-cluster-v3-circuitbreakers-thresholds

There is a note for retry_budget:

If this field is set, the retry budget will override any configured retry circuit breaker.

I can't understand what it means. What will be overridden exactly?

[KBaichoo]

I think this this refers to

max_retries:
(UInt32Value) The maximum number of parallel retries that Envoy will allow to the upstream cluster. If not specified, the default is 3.

See original PR: #9069.

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