Unit tests in hadoop in 2.2.0 (and further)

[Rajat Jain]

Hello,

What is the unit test status on the 2.2.0 branch of Apache? I get a lot of
test failures while running those tests. I run it using mvn clean package
(which runs all the tests). Am I doing something wrong? Is there a
documented way of running the tests? Are there many failures in the 2.2.0
branch?

Thanks and Regards,
Rajat