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What is the difference between Kafka and reactive Kafka?

Pragya Keshap answered on February 11, 2023 Popularity 2/10 Helpfulness 1/10

answer What is the difference between Kafka and reactive Kafka?

What is the difference between Kafka and reactive Kafka?

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One key difference between Kafka and reactive stream is the view of infrastructure cost.

Kafka will buffer all data while reactive stream will use back pressure to coordinate sender and receiver. RSocket just extends reactive stream to network protocol level. Basically it is TCP sliding window at layer 6 end to end.

public class HttpClient {
    private WebClient webClient;

    public Mono<Void> send(Transaction transaction) {
        return Mono.just(transaction)
            .map(this::serialize)
            .transformDeferred(
                xmlStringMono ->
                    webClient
                        .post()
                        .body(xmlStringMono, String.class)
                        .retrieve()
                        .onStatus(
                            HttpStatus::isError,
                            clientResponse -> responseStatusErrorHandler(transaction, clientResponse))
                        // Response doesn't provide any data in this case
                        .bodyToMono(String.class))
            .then();
    }

    private String serialize(Transaction transaction) {
        // ... serialize to XML text
    }

    private Mono<Throwable> responseStatusErrorHandler(Transaction transaction, ClientResponse clientResponse) {
        return Mono.just(Tuples.of(transaction, clientResponse))
            .doOnNext(tuple -> responseStatusErrorMetrics(tuple))
            .flatMap(response -> Mono.error(new PushClientException("Sending failed, HTTP status code: " + clientResponse.statusCode())));
    }

    private void responseStatusErrorMetrics(Tuple2<Transaction, ClientResponse> tuple) {
        // ... record some metrics for observability
    }
}

https://tech.trivago.com/post/2021-03-16-java-reactive-programming-real-world/

Popularity 2/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: between difference java

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Contributed on Feb 11 2023

Pragya Keshap

0 Answers Avg Quality 2/10

What is the difference between Kafka and reactive Kafka?

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