Preface

Architecting and building a distributed system is not a trivial job, and implementing coordination systems for the distributed applications is even harder. They are often prone to errors such as race conditions and deadlocks, and such bugs are not easily detectable. Apache ZooKeeper has been developed with this objective in mind, to simplify the task of developing coordination and synchronization systems from scratch. ZooKeeper is an open source service, which enables high performance and provides highly available coordination services for distributed applications.

Apache ZooKeeper is a centralized service, which exposes a simple set of primitives that distributed applications can build on, in order to implement high-level services such ...

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