IN HDP 2.2 it’s here (took me a while to find it, you’re welcome hw):
[root@sandbox hadoop-mapreduce]# pwd
/usr/hdp/2.3.0.0-2557/hadoop-mapreduce
[root@sandbox hadoop-mapreduce]# hadoop jar hadoop-mapreduce-client-jobclient-tests.jar TestDFSIO -clean
WARNING: Use “yarn jar” to launch YARN applications.
15/11/17 16:54:21 INFO fs.TestDFSIO: TestDFSIO.1.8
15/11/17 16:54:21 INFO fs.TestDFSIO: nrFiles = 1
15/11/17 16:54:21 INFO fs.TestDFSIO: nrBytes (MB) = 1.0
15/11/17 16:54:21 INFO fs.TestDFSIO: bufferSize = 1000000
15/11/17 16:54:21 INFO fs.TestDFSIO: baseDir = /benchmarks/TestDFSIO
15/11/17 16:54:23 INFO fs.TestDFSIO: Cleaning up test files