ZeppelinSparkClusterTest fails build on 10m timeout

PRs

• https://github.com/apache/incubator-zeppelin/pull/860
• https://github.com/apache/incubator-zeppelin/pull/850
• https://github.com/apache/incubator-zeppelin/pull/968 - logs
• https://github.com/apache/incubator-zeppelin/pull/1002 - logs and anothe run logs
• https://github.com/apache/zeppelin/pull/1041
• https://github.com/apache/zeppelin/pull/928 - logs
• https://github.com/apache/zeppelin/pull/1194 - logs
• https://github.com/apache/zeppelin/pull/1170 - logs
• https://github.com/apache/zeppelin/pull/1211 - logs
• https://github.com/apache/zeppelin/pull/1266 - logs

build failed because of test below.

12076 -------------------------------------------------------^M
12077 T E S T S^M
12078 -------------------------------------------------------^M
12079 Running org.apache.zeppelin.rest.ZeppelinSparkClusterTest^M
...
12390 17:25:22,650 INFO org.apache.zeppelin.notebook.Paragraph:235 - run paragraph 20160512-172522_1287820414 using pyspark org. apache.zeppelin.interpreter.LazyOpenInterpreter@14fda3e^M
12391
12392
12393 No output has been received in the last 10 minutes, this potentially indicates a stalled build or something wrong with the build itself.
12394
12395 The build has been terminated