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Affected tests, execution time, and rationale for exhaustive constraint: 1. metadata.test_hms_integration (20mins) The tests checks basic Impala/Hive interop with the shared metadata in the HMS. Imo, we have sufficient coverage of this in 'core' via all the other tests. In other words, if something was broken, we'd probably find that out via another test in 'core'. 2. metadata.test_views_compatibility (18mins) Tests that Impala can read views created by Hive and vice versa. While this is an important test, I don't think it warrants 18mins in our 'core'. We've rarely seen it break and find issues. 3. stress.test_ddl_stress (35mins) Simple stress test for DDL operations. Attempts to create, cache, uncache, then drop many different tables in parallel. I don't think it warrants that much of our 'core' time. We've rarely seen it break since each thread operates on different tables, so there is no real concurrency conflict. Total time saving in core: 1h13m Change-Id: Ie58a7c926966540cff84a28283ee13e35b0ca76e Reviewed-on: http://gerrit.cloudera.org:8080/1794 Reviewed-by: Tim Armstrong <tarmstrong@cloudera.com> Tested-by: Internal Jenkins