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Josh Rosen 012839807c [HOTFIX] Bind web UI to ephemeral port in DriverSuite 
The job launched by DriverSuite should bind the web UI to an ephemeral port, since it looks like port contention in this test has caused a large number of Jenkins failures when many builds are started simultaneously.  Our tests already disable the web UI, but this doesn't affect subprocesses launched by our tests.  In this case, I've opted to bind to an ephemeral port instead of disabling the UI because disabling features in this test may mask its ability to catch certain bugs.

See also: e24d3a9

Author: Josh Rosen <joshrosen@databricks.com>

Closes #3873 from JoshRosen/driversuite-webui-port and squashes the following commits:

48cd05c [Josh Rosen] [HOTFIX] Bind web UI to ephemeral port in DriverSuite.
2015-01-01 15:03:54 -08:00
..
java/org/apache/spark SPARK-4297 [BUILD] Build warning fixes omnibus 2014-12-24 13:32:51 -08:00
resources [SPARK-3748] Log thread name in unit test logs 2014-10-01 01:03:49 -07:00
scala/org/apache [HOTFIX] Bind web UI to ephemeral port in DriverSuite 2015-01-01 15:03:54 -08:00