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1 vote
0 answers
2k views

I have a Kafka Listener marked with @Controller: @KafkaListener(topics = "${binlookup.kafka.topic.insert}") public BinInfoJsonDTO listenAndInsert(String binInfoJson, Acknowledgment ack) { ...
11 votes
3 answers
9k views

Is it possible to create kafka topic in sarama? I know java API enables you do create topic but I couldn't find any information on how to do that in sarama. if it's possible, an example or explanation ...
1 vote
2 answers
13k views

I faced with some issue %3|1622567567.487|FAIL|rdkafka#consumer-2| [thrd:GroupCoordinator]: GroupCoordinator: kafka:9092: Failed to resolve 'kafka:9092': Temporary failure in name resolution (after ...
3 votes
2 answers
8k views

I'm using spring boot v2.2.4 and Apache Kafka in my project. Below is my pom.xml file: <dependencies> <dependency> <groupId>org.springframework.boot</groupId> ...
0 votes
0 answers
50 views

The Kafka documentation states that Kafka 4.x supports Java 11 for clients, including Kafka Streams, but not for brokers, which require Java 17. I'm running a Kafka Streams Scala 4.x consumer. ...
17 votes
5 answers
22k views

For testing purpose, I need to simulate client for generating 100,000 messages per second and send them to kafka topic. Is there any tool or way that can help me generate these random messages?
5 votes
2 answers
16k views

I'm trying to send multiple .mp4 files as kafka stream messages. I tried to follow the same approach as for text messages, but it did not work out. Does it mean I need a special Encoder/Decoder/...
0 votes
1 answer
58 views

I have a Spring Kafka application with a single consumer. The Kafka client authentication is configured using SASL/OAUTHBEARER over SSL, as shown below: authProps.put(SaslConfigs.SASL_MECHANISM,...
10 votes
1 answer
11k views

I'm new to Kafka, using confluent kafka and trying to write messages to existing kafka topic from AWS EC2 instance using python producer code with 'sasl.mechanism': 'PLAIN','security.protocol': '...
1 vote
0 answers
74 views

I am trying to secure an Apache Kafka cluster running in KRaft mode using SASL_SSL with OAUTHBEARER authentication and enforce ACLs. I have a multi-node setup - controller and broker run on different ...
1 vote
1 answer
81 views

I have a Camel, spring boot app that reads a message from a kafka topic. I have a spring boot test that places a message on an embedded kafka broker and add an open teleletry 'traceparent' header, ...
1 vote
2 answers
10k views

I'm trying to create multiple consumers with different consumer groups to a kafka topic using kafka-clients v.0.10.2.1. Although I'm not able to retrieve the last offset commited by a consumer group. ...
0 votes
1 answer
62 views

Running Confluent Kafka 7.9.0 on Ubuntu kernel 6.8.0 in AWS EC2. Zookeeper is already up. $ sudo systemctl restart confluent-server $ sudo journalctl -u confluent-server.service -e $ ... removing ...
-2 votes
0 answers
50 views

I want to process data through flink SQL, here is my code CREATE TABLE ohlc_source ( screener STRING, symbol STRING, `open` DOUBLE, `high` DOUBLE, `low` DOUBLE, `close` DOUBLE, `volume` ...
93 votes
4 answers
66k views

Why is Kafka pull-based instead of push-based? I agree Kafka gives high throughput as I had experienced it, but I don't see how Kafka throughput would go down if it were to pushed based. Any ideas on ...

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