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coalbase-message-broker

A setup for Kafka message broker based on confluent

Deployment

To start the cluster run following command:

docker-compose up

Alternatively docker stack can be used.

Environment Variables

Kafka

The following environment variables are used:

  • KAFKA_BROKER_ID The unique id for each kafka instance
  • KAFKA_ZOOKEEPER_CONNECT: List of all Zookeeper instances with client port
  • KAFKA_ADVERTISED_LISTENERS: Listener to publish for clients (default: INTERNAL://{service_name}:9092)
  • KAFKA_INTER_BROKER_LISTENER_NAME : Name of listener to be used (default: INTERNAL)
  • KAFKA_LISTENER_SECURITY_PROTOCOL_MAP : Map between listener an security protocols
  • KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR : Replication factor for offset topic (default: 1) Longer explanations can be found at the Kafka documentation

Zookeeper

The following environment variables are used:

  • ZOOKEEPER_SERVER_ID The unique id for each zookeeper instance
  • ZOOKEEPER_CLIENT_PORT Set the client port (default: 2181)
  • ZOOKEEPER_TICK_TIME Set the length of a tick, which is base for heartbeats and timeouts (default: 2000 ms)
  • ZOOKEEPER_INIT_LIMIT Amount of time to allow followers to connect (default: 5 ticks)
  • ZOOKEEPER_SYNC_LIMIT Amount of time to allow followers to sync (default: 2 ticks)
  • ZOOKEEPER_SERVERS List of all Zookeeper instances with ports Longer explanations can be found at the zookeeper documentation

License

The project is licensed under the Apache 2 license.