By

Sriram Study Point

 

Introduction to Big Data Properties of Big Data Introduction to Hadoop Core components in Hadoop MapReduce Hadoop Ecosystem tools Conclusion

A data which is beyond storage capacity and beyond

processing power

Properties of Big Data

According to IBM

Volume

Velocity

variety

1. Structured Data

RDBMS

2. Semi Structured Data

Log Files

3. Unstructured Data

text, audio, video, image etc..

? ?

4.545

Name Node Master of the system Maintains and manages the blocks

of data nodes

Data Node salves and provides actual storage responsible for read and write operations

Highly fault-tolerant

High Throughput

Suitable for applications with large data dets

Write once and read many times

Can be built by commodity hardware

Replicating data across different data nodes

Low latency data access(quickly access small data) Lots of small files Multiple writes, arbitrary file modifications

Familiar with SQL use

Initially given by Facebook

Internally runs with MapReduce

HiveQL-Hive Query Language act as interpreter

Can load thousands of rows at a time

Importing data from RDBMS to HDFSExporting data from HDFS to RBMSUsed to Store data in HbaseUsed to upload data to Hive

No need of lot of knowledge in programming and

SQL

Simplifies the work done by mapreduce programs

Initially given by Yahoo

Own language “Pig Latin Scripting”

Works as a server

Coordinating more than one job at a time

No SQL

Column Oriented Format

Data can be stored and processed

Hadoop can handle any type of data

Open Source from Apache

Fault Tolerant

Provides tools for various domain knowledge

Works very fast compared to others