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HBase Essentials by Nishant Garg

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Understanding HBase cluster components

In fully distributed and pseudo-distributed modes, a HBase cluster has many components such as HBase Master, ZooKeeper, RegionServers, HDFS DataNodes, and so on, discussed as follows:

  • HBase Master: HBase Master coordinates the HBase cluster and is responsible for administrative operations. It is a lightweight process that does not require too many hardware resources. A large cluster might have multiple HBase Master components to avoid cases that have a single point of failure. In this highly available cluster with multiple HBase Master components, only once HBase Master is active and the rest of HBase Master servers get in sync with the active server asynchronously. Selection of the next HBase Master in case ...

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