Difference between HBase and Hadoop/HDFS

Question

This is kind of naive question but I am new to NoSQL paradigm and don\'t know much about it. So if somebody can help me clearly understand difference between the HBase and H

Answer 1

HDFS is a Java based distributed file system that allows you to store large data across multiple nodes in a Hadoop cluster. Whereas HBase is a NoSQL database (similar as NTFS and MySQL).

As Both HDFS and HBase stores all kind of data such as structured, semi-structured and unstructured in a distributed environment.

Differences between HDFS & HBase

• HBase provides low latency access to small amounts of data within large data sets while HDFS provides high latency operations.
• HBase supports random read and writes while HDFS supports WORM (Write once Read Many or Multiple times).
• HDFS is basically or primarily accessed through MapReduce jobs while HBase is accessed through shell commands, Java API, REST, Avro or Thrift API.

HDFS stores large data sets in a distributed environment and leverages batch processing on that data.

While HBase stores data in a column oriented manner where each column is stored together so that, reading becomes faster leveraging real time processing.