What is Apache ZooKeeper?
Apache ZooKeeper ist ein Open-Source-Apache-Projekt, das es Clustern ermöglichen soll, Informationen wie Konfiguration, Benennung und Gruppendienste über große Cluster zu verteilen. Das Projekt war ursprünglich ein Teilprojekt von Apache Hadoop, wurde aber selbst zu einem großen Projekt, das von der Apache Software Foundation verwaltet wird.
Apache ZooKeeper is a service for providing configuration information, naming, synchronization, and group services across distributed systems, including Hadoop. The basic idea of the project is to manage distributed systems more easily, since many applications do without services that make propagating changes reliable. ZooKeeper uses a key-value store in a hierarchical manner. It is used for high availability environments.
Apache ZooKeeper is written in Java and licensed under the Apache License 2.0. It is used by some big companies like Rackspace, Yahoo, eBay, and Reddit.
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