Introduction to hbase
Download as PPTX, PDF1 like321 views
Hbase is a non-relational, distributed database that runs on top of HDFS. It uses Zookeeper for coordination between servers. Hbase has a master server that manages tables and region servers that store the distributed data. Data is stored in tables as rows and columns and can be queried using CRUD operations like put, get, scan, disable and drop.
Introduction to hbase
- 2. Agenda What is NoSQL and How it is differs from Traditional SQL? What is Hbase and which type of NoSQL DB it is? What is Zookeeper Hbase Architecture Anatomy of Region server Logical Data model in Hbase CURD Operations Example Java client app for Hbase
- 3. What is NoSQL? NoSQL stands for "Not only SQL" and usually means that the database is not a relational database, which have been very popular the last decades. The reason why NoSQL has been so popular the last few years is mainly because, when a relational database grows out of one server, it is no longer that easy to use.
- 4. What is Hbase and which type of NoSQL DB it is?
- 5. What is Zookeeper ? ZooKeeper is a centralized distributed coordination service for distributed applications. It exposes common services - such as naming, configuration management, synchronization, Serialization, Atomicity and group services. These services are used to solve common error prone like configuration, Race conditions, deadlocks, Partial failures and inconsistencies.
- 7. Anatomy of Region server
- 8. Logical Data model in Hbase
- 9. CURD Operations hbase(main) > create 'test', 'data‘ hbase(main) > put 'test', 'row1', 'data:1', 'value1' hbase(main) > put 'test', 'row2', 'data:2', 'value2' hbase(main) > put 'test', 'row3', 'data:3', 'value3‘ hbase(main) > get 'test', 'row1‘ hbase(main) > scan 'test‘ hbase(main) > disable 'test' hbase(main) > drop 'test'