David Knupp 894bb77855 IMPALA-4839: Remove implicit 'localhost' for KUDU_MASTER_HOSTS ...

The Kudu query tests were failing on a remote cluster because the Kudu
master was always set to '127.0.0.1', with no way to override it.

This patch corrects the issue with a number of changes:

- Add a pytest command line option to specify an arbitrary Kudu master

- Consolidate the place where the default Kudu master is derived. It
  had been stored both in the env and in tests/common/__init__.py,
  with different files looking to different places. For now, just look
  to the env, and remove the value from __init__.py.

- The kudu_client test fixture in conftest.py was using the connect()
  method from impala.dbapi (part of the Impyla library), without
  specifying the host param. In the absence of that, the default value
  is 'localhost', so add the host param to the connect() call.

- Define the various defaults for pytest config as constants at the top
  of conftest.py.

Change-Id: I9df71480a165f4ce21ae3edab6ce7227fbf76f77
Reviewed-on: http://gerrit.cloudera.org:8080/5877
Reviewed-by: Matthew Jacobs <mj@cloudera.com>
Tested-by: Impala Public Jenkins

2017-02-14 21:51:39 +00:00

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