Feign Ribbon client wait and retry

Question

I am using Feign Ribbon client to talk to a service. I have a client that fails immediately after configured maxAutoRetries in ribbon. Is there a property in feign or ribbon like "wait and retry" which can wait for configured time and retry.

Answer 1

You can define a Retryer Bean for this purpose.

@Configuration
public class RetryConfiguration {
    @Bean
    public Retryer retryer() {
        // default retryer will retry 5 times waiting waiting
        // 100 ms per retry with a 1.5* back off multiplier
        return Retryer.Default();
    }
}

You can create your own Retryer implementation if your needs are different from the default.

Once defined, this retry configuration will be used when a RetryableException is thrown during any Feign calls. You may need to also register an ErrorDecoder to ensure that the response from your endpoint is wrapped appropriately:

public class MyErrorDecoder implements ErrorDecoder {
    @Override
    public Exception decode(String methodKey, Response response) {
       // handle the error, wrap and return
       return new RetryableException(exception);
    }
}

@Bean
public ErrorDecoder errorDecoder() {
    return new MyErrorDecoder();
}