ZooKeeper

As explained in Quarkus in Action

Apache ZooKeeper is a distributed coordination service that provides shared configuration, naming, synchronization, and metadata-management primitives.

ZooKeeper is a coordination service used by the Strimzi Kafka platform for metadata management in a production-style car-rental deployment. It appears as an additional infrastructure container when Redpanda is replaced with Strimzi Kafka. section 11.1.1

Production infrastructure deployment

A Docker Compose deployment starts separate Kafka and ZooKeeper containers alongside application databases, messaging, identity, tracing, metrics, and dashboard services. The infrastructure can be started with docker compose -f docker-compose-files/docker-compose-infra.yml up and removed with the corresponding down command. section 11.1.1

Figure 11.2 The Acme Car Rental production with all dependent services

Use the deployment figure to locate ZooKeeper within the complete production topology and understand its relationship to Kafka and dependent services. section 11.1.1

How Quarkus in Action covers it

How deep it goes

Identifies ZooKeeper’s deployment role and container placement but does not explain its coordination internals or configuration.

Examples

Uses a separate zookeeper container in a Docker Compose topology containing Kafka and supporting infrastructure services.

What you can do after

Operate a local production-style Kafka infrastructure deployment that includes ZooKeeper as a supporting container.

How it connects

Connects ZooKeeper with Apache Kafka, the Strimzi Kafka platform, Docker Compose, and Kafka metadata management.

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Also explained in

• 

  liveBookmanning.com
  Apache Kafka in ActionA ZooKeeper ensemble is a group of ZooKeeper nodes that collectively provide distributed coordination and metadata services.
• 

  liveBookmanning.com
  Kafka for ArchitectsApache ZooKeeper is a distributed coordination service historically used by Kafka to manage cluster metadata and controller coordination.

Compare how 3 books explain ZooKeeper →

Related concepts

• Apache Kafkaused by · Apache Kafka is a distributed event-streaming platform for publishing, storing, processing, and consuming streams of records.
• KRaftalternative to · KRaft is Apache Kafka’s Raft-based metadata-management mode, using an internal controller quorum instead of ZooKeeper.
• Zabused by · ZooKeeper Atomic Broadcast is a distributed coordination protocol that orders and replicates state changes consistently among ZooKeeper servers.
• Strimziused by · Strimzi is an open-source Kubernetes operator and set of resources for deploying and managing Apache Kafka clusters and related components.
• leader electionuses · Leader election is a distributed coordination process that selects one eligible participant to act as leader or coordinator.

This explainer was generated by Manning's knowledge graph from the text of Quarkus in Action. The section links point to the parts of the book it draws on.