Github user ilooner commented on the issue:
https://github.com/apache/drill/pull/945
@paul-rogers PR https://github.com/apache/drill/pull/923 accidentally got
merged before I finished fixing jenkins test issues. This PR fixes the tests
that were failing on jenkins as a result of the PR, it also fixes a
pre-existing issue with the ClientFixture that would make other tests flakey.
The pre existing issue was that the the Drillbit would hunt for a user port,
but the client would not be configured with port which was found by hunting,
instead the client would be configured with the default user port. As a result,
some tests could talk to a drill bit that was started in another test or a
drill bit that is already running on the test machine.
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