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Answer by Ravindra babu for Why do we need ZooKeeper in the Hadoop stack?
From zookeeper documentation page:ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. All of these...
View ArticleAnswer by Arnon Rotem-Gal-Oz for Why do we need ZooKeeper in the Hadoop stack?
Hadoop 1.x does not use Zookeeper. HBase does use zookeeper even in Hadoop 1.x installations.Hadoop adopted Zookeeper as well starting with version 2.0.The purpose of Zookeeper is cluster management....
View ArticleAnswer by xiaofeng.li for Why do we need ZooKeeper in the Hadoop stack?
Zookeeper solves the problem of reliable distributed coordination, and hadoop is a distributed system, right?There's an excellent paper Paxos Algorithm that you can read on this subject.
View ArticleWhy do we need ZooKeeper in the Hadoop stack?
I am new to Hadoop/ZooKeeper. I cannot understand the purpose of using ZooKeeper with Hadoop, is ZooKeeper writing data in Hadoop? If not, then why we do we use ZooKeeper with Hadoop?
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