Simplifying Big Data ETL with Talend

www.edureka.co/talend-for-big-data
Simplifying Big Data USING Talend

 Understand how ETL is complementing Hadoop Ecosystem
 Adapt to ETL-Big Data industry
 Understand why Talend is used with Big Data
 Learn Big Data not in months but in Minutes
 Find out why Talend is important for Data Enthusiasts
 Understand the Use Case – Banking Industry
 Implement a Talend job with Hadoop
At the end of this session, you will be able to:
Objectives

A Graphical Abstraction Layer on top of Hadoop Applications – this makes life so much easy in the Big Data buzz
world
ETL with Big Data
» What no one seems to question in response to these sorts of comments is
the naive assumptions these statements are based on !!
» Is it realistic for most companies to move all of their data into Hadoop?
The typical assertion is that "Hadoop eliminates the need for ETL”…. Seriously ?

ETL with Big Data
Machine
Data
Transactional
Data
Business Apps
Data
ETL
Workflow
Big Data
Extra and Load

Is writing ETL scripts in
MapReduce code still ETL?
Is ETL running faster (in
few cases & slower in
others) on Hadoop
eliminating ETL?
Is introduction of Hadoop
changing when, where
and how ETL happens?
Yes No Yes
The question isn't really that are we eliminating ETL, but where does ETL take place & how are we changing its definition
ETL with Big Data (Contd.)

Defining ETL
E
• represents the ability to consistently and reliably extract data with
high performance and minimal impact to the source system
T
• represents the ability to transform one or more data sets in batch or
real-time into a consumable format
L • stands for loading data into a persistent or virtual data store

How learning ETL (along Big Data) is addressing major business problems ?
Why ETL + Hadoop?
BIG DATA
DATA
INTEGRATION
DATA QUALITY MDM ESB BPM
TALEND UNIFIED PLATFORM

One Stop Solution!!
Improves efficiency of big data job design with graphic interface
Abstract and generates code
Run transforms inside Hadoop
Native support for HDFS, Sqoop, HBase, Mahout, Pig, Hive &
MapReduce code generate
Apache License 2.0
Embedded in Hortonworks Data Platform
Certified with Cloudera, MapR and Grenplum
An open source ecosystem

Talend
Q. Why Talend?
Ans . Because the more connected the world becomes, the more quickly a business must adapt

Talend is the only Graphical User Interface tool which is capable enough to “translate” an ETL job to a
MapReduce job. Thus, Talend ETL job gets executed as a MapReduce job on Hadoop and get the big data work
done in minutes
This is a key innovation which helps to reduce entry barriers in Big Data technology and allows ETL job
developers (beginners and advanced) to carry out Data Warehouse offloading to greater extent
With its Eclipse-based graphical workspace, Talend Open Studio for Big Data enables the developer and data
scientist to leverage Hadoop loading and processing technologies like HDFS, HBase, Hive, and Pig without
having to write Hadoop application code
Hadoop Applications, Seamlessly gets Integrated within minutes using Talend
Why Talend?

By simply selecting graphical components from a palette, arranging and configuring them, you can create Hadoop jobs
For example:
1. Load data into HDFS (Hadoop Distributed File System)
2. Use Hadoop Pig to transform data in HDFS
3. Load data into a Hadoop Hive based data warehouse
4. Perform ELT (extract, load, transform) aggregations in Hive
5. Leverage Sqoop to integrate relational databases and Hadoop
Why Talend? (Contd.)

Talend Hadoop Integration

 For Hadoop applications to be truly accessible to your organization, they need to be smoothly integrated into your
overall data flows
 Talend Open Studio for Big Data is the ideal tool for integrating Hadoop applications into your broader data
architecture
 Talend provides more built-in connector components than any other data integration solution available, with more
than 800+ connectors that make it easy to read from or write to any major file format, database, or packaged
enterprise application
For Example, in Talend Open Studio for Big Data, you can use drag 'n drop configurable components to create data
integration flows that move data from delimited log files into Hadoop Hive, perform operations in Hive, and extract
data from Hive into a MySQL database (or Oracle, Sybase, SQL Server, and so on)
Talend Hadoop Integration (Contd.)

 More and more enterprise wanted to scale up in Hadoop/Big Data technologies with use of existing pool of
talent and reduce overspending on map-reduce programmer (which is pretty new and expensive)
 High rise of job trend in Data Scientist/Data Analysis (Talend also comes along with basic BI transformations
which reduces your dependency on simple excel dash board/ BI tools)
 Gartner is featuring Talend as the best technology in market for Data Integration and Big Data
 3 major players in Big Data industry, Hortonworks, Cloudera, MapR have already tied up with Talend for big data
solutions
 And mostly any level person in industry can quickly get started on this without much pre-requisites
Myth : I don’t know Java programming , how would this course help me learn and excel in Big Data? The biggest
advantage you get with Talend for Big Data is “there is no prerequisite” to learn this concept. Whether you come with
prior knowledge of Hadoop or not , this course has some or other best things to offer
Talend Hadoop Integration (Contd.)

Learn Big Data not in months but in Minutes!! Sounds too good ? But true
Big Data in 10 minutes
HADOOP
HORTONWORKSMAPR
CLOUDERA Go from zero to big data in under 10 minutes
Get big data without coding. The Talend Big Data
Sandbox is a ready-to-run virtual environment that
includes Talend Platform for Big Data, popular
Hadoop distributions and data examples

Who can use “Talend for Big Data”!!

Let us all see quickly, what Talend
can do in minutes, reducing the
man-hours in doing MapReduce
programming in Hadoop, shall we?
We are just about to see the Bigger Picture

A Banking industry use case :
“Addressing the challenges in growing the business with use of Big Data“ . We will use customer filled web-log data
(collected by bank) and with the help of Pig-ETL job will answer the question “where should bank hold marketing
campaigns for new product launch to get more business” , in ETL-Big Data Analytics style
In this section, you will be able to sense the true power of Talend+Big Data
Real time Use Case : ETL + Big Data

Slide 19Slide 19
Project
Use Case
A Leading bank has initiated a new product launch campaign across the cities.
Post campaign , the bank wants to analyze the collected data to increase
Business and attract more customer.
How quickly can the huge log files will be analysed and made some business
value out of it within seconds ?
Wanted to know , explore the “Talend for Big Data” and join us in the next
exciting webinar and see how beautifully talend does the trick without any
complex programming (because seeing is believing).
If that is not all enough , the same talend can generate graphical
interpretation of the business data giving tough time to Business Analytics
tools.

Our use case setup is using the below :
» Hortonworks Sandbox 1.3
» Talend Open Studio for Big Data 5.5
» Windows 7 (64 Bit OS)
» Machine : 4GB RAM , i3 processor
Environment Setup

Use-case Snapshot
Combination of Integration , HDFS , Pig and BI Graphs … yes its true.

Salary Trend

References
 https://www.talend.com/resource/hadoop-applications.html
 http://www.edureka.co/blog/big-data-and-etl-are-family/

Questions
Slide 24 www.edureka.co/talend-for-big-data

Simplifying Big Data ETL with Talend

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