How do you consume a Kafka event?

How do you consume a Kafka event?

To consume events/messages:

1. Specify the path to the JAAS configuration file as one of your JVM parameters. For example:
2. kinit with the principal’s keytab.
3. Launch kafka-console-consumer.sh with the following configuration settings.

How do I consume specific messages from Kafka topic?

Consume Messages from an Apache Kafka Topic

1. Consume records from a Kafka topic.
2. Specify the consumer group to attach.
3. Specify Read latest as the option for consuming messages.
4. Specify the message structure to use (for this example, an XML schema (XSD) document) and the headers to use for the message.

How do you throttle a queue?

Throttling that darn queue

1. Create a consumer instance. 1const { ConsumerGroup } = require(‘kafka-node’);
2. Set max size of the batch.
3. Stop auto committing of the messages.
4. Pause the queue on data reception.
5. Setting up a local, throttled queue.
6. Commit the messages.
7. Resume the queue.

Why Kafka messages are not consumed?

Its because I was publishing event first and then starting a consumer. By default, consumer only consumes events published after it started because auto. offset. reset=latest by default.

How do you consume multiple topics in kafka?

In order to consume messages from kafka topic, you need to create a kafka consumer, and subscribe it into the topic. Every kafka consumer is grouped by consumer group name. It allows you to consume the whole topic using multiple physical instances of the application, and process distinct messages on each instance.

How do you consume messages from kafka topic using spring boot?

1. Step 1: Generate our project. First, let’s go to Spring Initializr to generate our project.
2. Step 2: Publish/read messages from the Kafka topic. Now, you can see what it looks like.
3. Step 3: Configure Kafka through application.
4. Step 4: Create a producer.
5. Step 5: Create a consumer.
6. Step 6: Create a REST controller.

How do you consume messages from Kafka topic using spring boot?

What is Kafka throttling?

Motivation. Kafka currently supports quotas by data volume. Clients that produce or fetch messages at a byte rate that exceeds their quota are throttled by delaying the response by an amount that brings the byte rate within the configured quota.

Why throttling is done?

Throttling process is a thermodynamic process which is used to reduce or decrease the pressure of a fluid. In this process a liquid having high pressure is converted into low pressure fluid. So the process can’t be reversible.

Can Kafka consumer consume from multiple topics?

Apache Kafka allows a single consumer to subscribe to multiple topics at the same time and process both in a combined stream of records.