Apache Kafka

File dan Direktori Penting

• Direktori instalasi utama Kafka: /opt/kafka
• File konfigurasi broker Kafka: /opt/kafka/config/server.properties
• Direktori log Kafka (log broker, event yang disimpan): /opt/kafka/logs
• Binari Kafka dan alat CLI (kafka-topics.sh, kafka-console-producer.sh, etc.): /opt/kafka/bin
• Unit layanan Systemd untuk mengelola Kafka: /etc/systemd/system/kafka.service

Kafka Service

sudo systemctl restart kafka
sudo systemctl enable kafka
sudo systemctl status kafka

Create a Topic

/opt/kafka/bin/kafka-topics.sh --create --topic quickstart-events --bootstrap-server localhost:9092

Periksa detail topik:

/opt/kafka/bin/kafka-topics.sh --describe --topic quickstart-events --bootstrap-server localhost:9092

Produksi Event (Pesan)

/opt/kafka/bin/kafka-console-producer.sh --topic quickstart-events --bootstrap-server localhost:9092

Ketik satu event per baris.

Press Ctrl+C to exit.

Consume Events

/opt/kafka/bin/kafka-console-consumer.sh --topic quickstart-events --from-beginning --bootstrap-server localhost:9092

Press Ctrl+C to stop reading.

Event dapat dikonsumsi berkali-kali oleh beberapa klien.

Logs & Troubleshooting

• Kafka logs: /opt/kafka/logs
• Systemd journal: sudo journalctl -u kafka -f
• Ensure ports 9092 (broker) and 9093 (controller) sudah terbuka.