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The primary requirement of course, is the core-site.xml to have the fs implementations called out (for something like S3, it would be the key fs.s3a.impl).
Azure/AWS Solution
Solution (in Tez 0.8)
Specifically for For Azure and AWS, the Hadoop versions after 2.7.0 include the HCFS jars as part of the hadoop install. This can be adopted into the build by rebuilding Tez with mvn package -Paws -Pazure .
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Solution (in Tez 0.5 - 0.7)
There are 3 class loader contexts for Tez, which all need to have these JARs accessible to work correctly.
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