Hello, Background: I am conducting an audit of metadata tests.
A particular manifestation of IMPALA-3947 [0] is that the test module test_ddl_stress.py isn't runnable via any buildall.sh option. I expect this means test_ddl_stress.py isn't being run regularly except by conscientious developers running it locally. Note that this test was not disabled as part of the commit "IMPALA-2605: Omit the sort and mini stress tests". I'm interested to know any history around this. Could any community members who have been around for several years, especially those who work on the Catalog, shed light on this? Were you assuming test_ddl_stress.py was being run regularly? Or do you know to run it by hand? Do you know it to be reliable and useful, and it should be included in regular runs, or do you know it to be flaky and needing work? It's fine if no one knows any such answers, but they would lend context to getting test_ddl_stress running regularly. Thanks. [0] https://issues.cloudera.org/browse/IMPALA-3947
