Compare Hadoop and RDBMS?

[DataFlair Team]

Apache Hadoop and Databases both handle the data, they store and process the data. What is the difference between Hadoop and RDBMS ?
What are the differences between traditional RDBMS and Hadoop?
Comparison between Hadoop vs RDBMS?

[DataFlair Team]

Hadoop is not a database but its framework to handle a large amount of data for processing.
It has 2 integral parts:

1.HDFS
2.Mapreduce

HDFS(distributed file system) which helps you to store large amount of data(in zeta byte, petabyte or more) in other machines.
Map Reduce helps you to process a large amount of data.

Hadoop would be used, when we have a massive amount of unstructured data and does not require any modeling.
It is mainly proposed for Batch processing (OLAP). Hadoop offers massive scale in processing power and storage at very low cost.

RDBMS is relational database management system where data is stored in the form rows and columns. It is a system where data is in the structured format and is mainly used in real time processing(OLTP).
RDBMS have ACID properties(Atomicity, Consistency, Isolation, and Durability). In RDBMS you must always model your data.

[Author]

Posts