This course teaches you how to use SAS programming methods to read, write, and manipulate Hadoop data. Base SAS methods that are covered include reading and writing raw data with the DATA step and managing the Hadoop file system and executing Map-Reduce and Pig code from SAS via the HADOOP procedure. In addition, the SAS/ACCESS Interface to Hadoop methods that allow LIBNAME access and SQL pass-through techniques to read and write Hadoop Hive tables structures is part of this course. Although not covered in any detail, a brief overview of additional SAS and Hadoop technologies, including DS2, high-performance analytics, SAS LASR Server, and in- memory Statistics, as well as the computing infrastructure and data access methods that support these, is also part of this course. This course is included in the Expert Exchange on Hadoop: Using SAS/ACCESS service offering to configure SAS/ACCESS Interface to Hadoop or SAS/ACCESS Interface to Impala to work with your Hadoop environment.

Learn how to

• read and write Hadoop files with the FILENAME statement
• execute and use Hadoop commands with PROC HADOOP
• invoke execution of MapReduce programs and Pig programs in Hadoop within a SAS program
• access Hadoop distributions using the LIBNAME statement and the SQL pass-through facility
• create and use SQL procedure pass-through queries
• use options and efficiency techniques for optimizing data access performance
• join data using the SQL procedure and the DATA step
• use Base SAS procedures with Hadoop
• write programs to create source data for SAS High Performance Analytics programs and execute SAS High Performance Analytics programs to analyze the data in parallel
• write SAS programs to start up a SAS LASR server grid, load data into memory in parallel and process that data in parallel with the IMSTAT procedure.

Who should attend

SAS programmers that need to access data in Hadoop from within SAS

Formats available	Duration
Live Web Classroom:	4 half-day session(s)

Before attending this course, you should be comfortable programming in SAS and Structured Query Language (SQL). You can gain this experience from the SAS SQL 1: Essentials course. You can gain knowledge of SAS from the SAS Programming 1: Essentials course. A working knowledge of Hadoop is helpful.

This course addresses SAS/ACCESS Interface to Hadoop.

Introduction

• what is Hadoop?
• how SAS interfaces with Hadoop

Accessing HDFS and Invoking Hadoop Applications from SAS

• overview of methods available in Base SAS for interacting with Hadoop
• reading and writing Hadoop files using Base SAS
• methods
• executing MapReduce code
• executing Pig code using PROC HADOOP

Using the SQL Pass-Through Facility

• understand the SQL procedure pass-through facility
• connecting to a Hadoop Hive database
• learning methods to query Hive tables
• investigating Hadoop Hive metadata
• creating SQL procedure pass-through queries
• creating and loading Hive tables with SQL pass-through EXECUTE statements
• handling Hive STRING data types

Using the SAS/ACCESS LIBNAME Engine

• using the LIBNAME statement for Hadoop
• using data set options
• creating views
• combining tables
• benefits of the LIBNAME method
• using PROC HDMD to access delimited data, XML data, and other non-Hive formats
• performance considerations for the SAS/ACCESS LIBNAME statement
• copying data from a SAS library to a Hive library

Partitioning and Clustering Hive Tables

• identifying partitioning, clustering, and indexing methods in Hive
• understand how partitioning and clustering can increase query performance
• creating and loading partitioned and clustered Hive tables

Overview of SAS In-Memory Analytics and the Code Accelerator for Hadoop

• using high-performance procedures and the SASHDAT library engine
• creating a LASR Analytic server session
• using the SASIOLA engine
• executing DS2 threads in the Hadoop cluster to summarize data
• using PROC HDMD to access HDFS files