TestMRJobs Timing Out

[Daniel Templeton <da...@cloudera.com>]

On my MacOS X 10.9.5 machine TestMRJobs consistently fails by timeout:

-------------------------------------------------------
  T E S T S
-------------------------------------------------------
Running org.apache.hadoop.mapreduce.v2.TestMRJobs
====> TEST TIMED OUT. PRINTING THREAD DUMP. <====
Timestamp: 2015-12-16 04:30:42,286
"Socket Reader #1 for port 62548"  prio=5 tid=102 runnable
java.lang.Thread.State: RUNNABLE
         at sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method)
         at sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:200)
...

The full thread dump is attached if anyone's interested.  Has anyone 
else encountered this issue?  I didn't find anything in the archives, 
and I didn't see similar failures in the Jenkins build, so it seems like 
it's just me.  Is it just that YARN no likey MacOS? Any hints or 
pointers appreciated.

Thanks,
Daniel