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HDP Developer: Java
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HDP Developer: Java
WHAT YOU WILL LEARN
This advanced course provides Java
programmers a deep-dive into Hadoop application development. Students will
learn how to design and develop efficient and effective MapReduce applications
for Hadoop using the Hortonworks Data Platform, including how to implement
combiners, practitioners, secondary sorts, custom input and output formats,
joining large datasets, unit testing, and developing UDFs for Pig and Hive.
Labs are run on a 7-node HDP 2.1 cluster running in a virtual machine that students
can keep for use after the training.
AUDIENCE
This course is excellent for Experienced
Java software engineers who need to develop Java MapReduce applications for
Hadoop.
PREREQUISITES
Students must have experience developing
Java applications and using a Java IDE. Labs are completed using the Eclipse
IDE and Gradle. No prior Hadoop knowledge is required.
CERTIFICATION
Hortonworks offers a comprehensive
certification program that identifies you as an expert in Apache Hadoop.
COURSE OBJECTIVES
Upon completion of this program,
participants should be able to:
- Describe Hadoop 2 and the Hadoop Distributed File System
- Describe the YARN framework
- Develop and run a Java MapReduce application on YARN
- Use combiners and in-map aggregation
- Write a custom partitioner to avoid data skew on reducers
- Perform a secondary sort
- Recognize use cases for built-in input and output formats
- Write a custom MapReduce input and output format
- Optimize a MapReduce job
- Configure MapReduce to optimize mappers and reducers
- Develop a custom RawComparator class
- Distribute files as LocalResources
- Describe and perform join techniques in Hadoop
- Perform unit tests using the UnitMR API
- Describe the basic architecture of HBase
- Write an HBase MapReduce application
- List use cases for Pig and Hive
- Write a simple Pig script to explore and transform big data
- Write a Pig UDF (User-Defined Function) in Java
- Write a Hive UDF in Java
- Use JobControl class to create a MapReduce workflow
- Use Oozie to define and schedule workflows
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