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This article mainly introduces what kind of database hbase refers to. The introduction in this article is very detailed and has certain reference value. Interested friends must read it!

HBase is a distributed, column-oriented open source database based on Fay Chang's Google paper "Bigtable: A Distributed Storage System for Structured Data."

HBase is a distributed, column-oriented open source database based on Fay Chang's Google paper "Bigtable: A Distributed Storage System for Structured Data." Just as Bigtable leverages the distributed data storage provided by Google File System, HBase provides Bigtable-like capabilities on top of Hadoop. HBase is a subproject of Apache's Hadoop project. HBase differs from relational databases in that it is a database suitable for unstructured data storage. Another difference is HBase's column-based rather than row-based schema.

HBase - Hadoop Database, is a high-reliability, high-performance, column-oriented, scalable distributed storage system, using HBase technology to build large-scale structured storage clusters on low-cost PC servers.

Different from commercial big data products such as FUJITSU Cliq, HBase is an open source implementation of Google Bigtable, similar to Google Bigtable using GFS as its file storage system, HBase uses Hadoop HDFS as its file storage system;Google runs MapReduce to process massive data in Bigtable, and HBase also uses Hadoop MapReduce to process massive data in HBase;Google Bigtable uses Chubby as a collaborative service, and HBase uses Zookeeper as its counterpart. [1]

The diagram above depicts the layers in the Hadoop EcoSystem. HBase is located in the structured storage layer, Hadoop HDFS provides high-reliability underlying storage support for HBase, Hadoop MapReduce provides high-performance computing power for HBase, and Zookeeper provides stable services and failover mechanisms for HBase.

Pig and Hive also provide high-level language support for HBase, making statistical processing of data on HBase very easy. Sqoop provides convenient RDBMS data import function for HBase, which makes it very convenient to migrate traditional database data to HBase.

1) Logical model

The name Hbase comes from Hadoop database.

It is mainly considered from the user's point of view, that is, how to use Hbase.

(2) Physical model

Mainly discussed from the perspective of implementing Hbase

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