What is Hbase

Hbase is an open source column oriented NO-SQL i.e. non-relational database which is built on the top of the Hadoop eco system.

Difference between Hbase and RDBMS

• 1. Hbase is column oriented database but RDBMS is Row Oriented Database.
• 2. Hbase is flexible schema database on the other hand RDBMS is fixed schema database.
• 3. Hbase doesn’t support triggers, secondary indexes etc.
• 4. Hbase is suitable for large amount of data on the other hand we RDBMS is best suitable for small data.

What are the component of Hbase

A. HMaster
B. HRegion Server
C. Zookeeper

What is the importance of Zookeeper in HBase

Zookeeper is the most important component of Hbase. . It maintains all the configuration information and keep track on region server.