IMPALA-13201 adds test_coord_only_pool_exec_groups. This test failed in
TestAdmissionControllerWithACService due to unaccounted AdmissionD as
the extra statestore subscriber. This patch fix the issue by using
expected_subscribers and expected_num_impalads argument for
CustomClusterTestSuite._start_impala_cluster() and relies on wait
mechanism inside it.
This patch also does some adjustments:
1. Tweak __run_assert_systables_query to not use
execute_query_using_vector from IMPALA-13694.
2. Remove default_impala_client() call, first added by IMPALA-13668, and
use self.client instead.
3. Fixed minor flake8 issue at test_coord_only_pool_happy_path.
These make it possible to backport IMPALA-13201 and IMPALA-13761
together to older release/maintenance branch.
Testing:
Run the test with this command:
impala-py.test --exploration=exhaustive \
-k test_coord_only_pool custom_cluster/test_admission_controller.py
Change-Id: I00b83e706aca3325890736133b2d1dcf735b19df
Reviewed-on: http://gerrit.cloudera.org:8080/22486
Reviewed-by: Peter Rozsa <prozsa@cloudera.com>
Reviewed-by: Jason Fehr <jfehr@cloudera.com>
Tested-by: Jason Fehr <jfehr@cloudera.com>
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