Zookeeper

ZooKeeper is a distributed hierarchical key-value database system. It is often used as a fault-tolerant storage for meta-data in large-scale distributed systems.

History

ZooKeeper was originally developed at Yahoo as centralized repository for meta-data in Hadoop clusters. It became a standalone Apache Foundation project in 2008.

Data Model

Hierarchical

Isolation Levels

Not Supported

Query Interface

Custom API

Storage Architecture

Disk-oriented

Storage Organization

Heaps

Stored Procedures

Not Supported

System Architecture

Shared-Nothing

Zookeeper Logo
Website

https://zookeeper.apache.org/

Source Code

https://github.com/apache/zookeeper

Tech Docs

https://zookeeper.apache.org/doc/current/

Developer

Apache Foundation

Country of Origin

US

Start Year

2008

Project Type

Open Source

Written in

Java

Operating Systems

All OS with Java VM

Licenses

Apache v2

Wikipedia

https://en.wikipedia.org/wiki/Apache_ZooKeeper