Mastering Kafka: A Comprehensive Cheat Sheet and Tips for Interview Success
<p>Certainly! Here's a concise Kafka cheat sheet that covers the essential concepts and commands:</p>
<p>Kafka Cheat Sheet:</p>
<p>1. Kafka Basics:<br />
- Apache Kafka: A distributed streaming platform.<br />
- Topics: Streams of records that Kafka organizes data into.<br />
- Partitions: Divisions of a topic for scalability and parallelism.<br />
- Producers: Applications that write data to Kafka topics.<br />
- Consumers: Applications that read data from Kafka topics.<br />
- Brokers: Kafka server instances that store and replicate messages.</p>
<p>2. Kafka Command Line Tools:<br />
- Create a topic:<br />
```<br />
kafka-topics.sh --create --topic <topic_name> --bootstrap-server <bootstrap_servers> --partitions <num_partitions> --replication-factor <replication_factor><br />
```<br />
- List topics:<br />
```<br />
kafka-topics.sh --list --bootstrap-server <bootstrap_servers><br />
```<br />
- Produce messages:<br />
```<br />
kafka-console-producer.sh --topic <topic_name> --bootstrap-server <bootstrap_servers><br />
```<br />
- Consume messages:<br />
```<br />
kafka-console-consumer.sh --topic <topic_name> --bootstrap-server <bootstrap_servers> [--from-beginning]<br />
```</p>
<p>3. Kafka Configuration:<br />
- server.properties: The main Kafka configuration file.<br />
- zookeeper.connect: ZooKeeper connection string.<br />
- listeners: Network listeners for Kafka.<br />
- log.dirs: Directory where Kafka stores log data.<br />
- num.partitions: Default number of partitions for new topics.</p>
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