PolyBase

Looking for a tutorial on how to setup and use PolyBase?  Look no further:
 - A listing of some PolyBase posts on Realized Design

How To Basics:

Getting Started with PolyBase in SQL Server 2016

Setting up PolyBase in SQL Server 2016

Setting up PolyBase for YARN in SQL Server 2016

Create an External Data Source to Hadoop in SQL Server 2016

Create a PolyBase CSV External File Format in SQL Server 2016

Create PolyBase External Table in SQL Server 2016

Best Practice for PolyBase Table Location - Use a Folder

Hive:

Connect PolyBase to your Hive database Table: SQL Server 2016

Connect PolyBase to your Hive ORC Table

PolyBase wants a strongly typed ORC Hive Table

Inserts

PolyBase - Insert data into a Hadoop Hue Directory

Have PolyBase INSERT create a new Directory for you

Inserts, Updates now supported (DML)

Errors, trouble-shooting and other items:

Use a web browser to verify the hadoop IPC port is accessible
"Login timeout expired" when creating External Data Source
Error connecting to Hadoop file
PolyBase Error ...app.MRAppMaster not found
Port Range Defaults
Settings Folder in SQL Server 2016

Configuration for Cloudera

Performance and Statistics
PolyBase and Views
PolyBase and HDInsight

Further Reading - PolyBase Resources

MSDN - PolyBase Guide
A Listing of other PolyBase Resources
All PolyBase Posts on Realized Design