Apache ZooKeeper

Highly available distributed coordination service.

Highlights:
Centralized coordination for distributed systems
Leader election and locking
Watch/notification functionality
High-performance and reliable
Core to Hadoop, Kafka, HBase

More Details

About this Item

What is Apache ZooKeeper?

Apache ZooKeeper is a high-performance, open-source coordination service designed to manage and synchronize distributed applications. Developed by the Apache Software Foundation, ZooKeeper provides a centralized infrastructure for maintaining configuration information, naming, synchronization, and group services across large clusters of machines. In distributed systems, where multiple nodes must work together reliably, ZooKeeper acts as a trusted coordinator, ensuring consistency, reliability, and fault tolerance. Its simple yet powerful API allows developers to build robust distributed applications that can handle failures and dynamic changes in the environment.

Key Features

  • Configuration Management:ZooKeeper offers a reliable way to store and manage configuration data for distributed applications. By centralizing configuration information, it ensures that all nodes in a cluster have access to the latest settings, reducing the risk of inconsistencies and configuration drift. Applications can watch for changes and automatically update their behavior in response to configuration updates.
  • Leader Election:In distributed systems, it is often necessary to designate a single node as the leader to coordinate tasks or make decisions. ZooKeeper provides built-in primitives for leader election, allowing nodes to compete for leadership in a fair and fault-tolerant manner. If the current leader fails, ZooKeeper quickly elects a new leader, ensuring continuous operation without manual intervention.
  • Naming Service:ZooKeeper acts as a distributed naming registry, allowing applications to register and discover services dynamically. This is especially useful in microservices architectures, where services may scale up or down and change locations frequently. ZooKeeper’s naming service helps clients locate and connect to the right service instances at any time.
  • Synchronization and Coordination:ZooKeeper provides mechanisms for distributed synchronization, such as locks and barriers, enabling multiple processes to coordinate their actions safely. This is essential for tasks like distributed queues, shared resource management, and consistent state transitions.

Use Cases

  • Microservices:In microservices environments, ZooKeeper is used for service discovery, configuration management, and distributed coordination. It helps microservices communicate reliably and adapt to changes in the system.
  • Hadoop Ecosystem:ZooKeeper is a critical component in the Hadoop ecosystem, where it manages coordination tasks for Hadoop Distributed File System (HDFS), YARN, HBase, and other big data tools. It ensures high availability and consistent operation across large clusters.
  • Distributed Systems:Any distributed application that requires reliable coordination, leader election, or shared configuration can benefit from ZooKeeper. It is widely used in cloud platforms, messaging systems, and large-scale web services.

In summary, Apache ZooKeeper is an essential tool for building resilient, scalable, and manageable distributed systems. Its robust coordination features simplify the complexities of distributed computing, making it a foundational technology for modern cloud-native and big data architectures.

Code Snippet
App Type and Industry Use Cases

Take a look at the diverse range of application types and industries that can leverage this solution. Understanding these potential uses can help identify how this can integrate into different business models and digital solutions across various sectors.

Tech Stack Compatibility

We've outlined the compatible tech stacks for this solution, encompassing various development areas like frontend, backend, and database, alongside specific stack environments. This provides you with the crucial information needed for seamless integration into your preferred frameworks and programming environments.

Apache ZooKeeper
$
Try for FreeView Pricing
30-Day Money-Back Guarantee

Pricing Tiers

Community
Coordination service/distributed systems (leader election, naming, etc.)
Free
Coordination
Java
Leader election
Distributed
Docs
Managed
Managed ZK services, Amazon Elastic Zookeeper, MSPs.
Usage
Managed
SLA
Monitoring
Scaling
Support
Enterprise
Tuning, consulting, SLA, scaling, compliance, support.
Varies
SLA
Support
Tuning
Compliance
Analytics

Related Cloud Hub Solutions

No items found.

Explore Scrums.com Products

Scrums.com Dedicated

Build a custom team that works exclusively on your project, fully integrated into your processes. You control the team composition, while we handle the logistics and infrastructure.

Scrums.com Product Development as a Service

Turnkey agile teams delivering production-ready features. Ideal for building new products with no tech stack preference. Cost-efficient, scalable, and results-driven.

Scrums.com On-Demand

Solve tech challenges fast with services like prototyping or code audits. Flexible, low-risk, and tailored to deliver results in weeks not months.

Scrums.com Augmented

Scale quickly with pre-vetted talent integrated into your team. Perfect for filling roles or building offshore development centers efficiently.

Scrums.com Developer Analytics

Track DevOps performance with real-time insights. Boost deployment speed, reduce downtime, and improve efficiency through actionable data and metrics.

Scrums.com Managed Services

Optimize platform performance with SLA-based support for Platform Maintenance, QA, cloud management, and more. Reliable, scalable, and designed to streamline your operations.