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Zookeeper

Zookeeper. The main design goals of Zookeeper Simple Replicated Zookeeper Guarantees: Sequential Consistency - Updates from a client will be applied in the order that they were sent. Atomicity - Updates either succeed or fail. No partial results.

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Zookeeper

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  1. Zookeeper • The main design goals of Zookeeper • Simple • Replicated • Zookeeper Guarantees: • Sequential Consistency - Updates from a client will be applied in the order that they were sent. • Atomicity - Updates either succeed or fail. No partial results. • Single System Image - A client will see the same view of the service regardless of the server that it connects to. • Reliability - Once an update has been applied, it will persist from that time forward until a client overwrites the update. • Timeliness - The clients view of the system is guaranteed to be up-to-date within a certain time bound.

  2. Data model of Zookeeper Node types: Persistent Node and Ephemeral node

  3. Cluster Management of NTA Master /NTA Watching /queries /master /leafservers ara1.korea.ac.kr:9001 node1.kore…:9100 …..

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