Impala Public Jenkins has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/21815 )

Change subject: IMPALA-13101: test_data_source_tables fails with Data source 
does not exist
......................................................................

IMPALA-13101: test_data_source_tables fails with Data source does not exist

The test failed with a "Data source does not exist" due
to name conflicts with pre-existing Data source objects.
To resolve this, each datasource name is made unique for
each concurrently running test dimension. The fix ensures
that the test runs smoothly without encountering errors
related to conflicting Data source names.

Testing: To test this change, it needs to be built with
-ubsan flag, post which a bash script is triggered to set
some environment variables, followed by './bin/run-all-tests.sh'
command to make sure all tests are run. Some important
environment variables of the bash script includes:

1. EXPLORATION_STRATEGY set to exhaustive to ensure all
possible scenarios are covered.
2. The specific test file to run is query_test/
test_ext_data_sources.py::TestExtDataSources
::test_data_source_tables and custom_cluster/
test_ext_data_sources.py, while frontend (FE), backend (BE),
and cluster tests are disabled. End-to-end tests are enabled
(EE_TEST=true), with iteration and failure limits also
specified.

Change-Id: I29822855da8136e013c8a62bb0489a181bf131ae
Reviewed-on: http://gerrit.cloudera.org:8080/21815
Reviewed-by: Wenzhe Zhou <[email protected]>
Reviewed-by: Riza Suminto <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
---
M testdata/workloads/functional-query/queries/QueryTest/data-source-tables.test
M tests/custom_cluster/test_ext_data_sources.py
M tests/query_test/test_ext_data_sources.py
3 files changed, 18 insertions(+), 14 deletions(-)

Approvals:
  Wenzhe Zhou: Looks good to me, but someone else must approve
  Riza Suminto: Looks good to me, approved
  Impala Public Jenkins: Verified

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I29822855da8136e013c8a62bb0489a181bf131ae
Gerrit-Change-Number: 21815
Gerrit-PatchSet: 7
Gerrit-Owner: Pranav Lodha <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Pranav Lodha <[email protected]>
Gerrit-Reviewer: Riza Suminto <[email protected]>
Gerrit-Reviewer: Wenzhe Zhou <[email protected]>

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