[IMPALA-10195] TestAdmissionControllerStress test_mem_limit run_admission_test looks flaky again

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: Impala 4.0.0
• Component/s: Backend
• Epic Color: ghx-label-4
• Assignee: Bikramjeet Vig
• Reporter: Laszlo Gaal
• Created: 28/Sep/20 15:24
• Updated: 14/Oct/20 00:15
• Resolved: 14/Oct/20 00:15

Description

custom_cluster.test_admission_controller.TestAdmissionControllerStress.test_mem_limit fails with a familiar assertion:

custom_cluster/test_admission_controller.py:1856: in test_mem_limit
    {'request_pool': self.pool_name, 'mem_limit': query_mem_limit})
custom_cluster/test_admission_controller.py:1754: in run_admission_test
    assert metric_deltas['admitted'] >= expected_admitted
E   assert 0 >= 5

The failure looks eerily similar to IMPALA-8342. That one was closed 18 months ago, so I'm hesitant to reopen it, but it is linked as related.
Tagging bikramjeet.vig and [e-mail] as the they looked at the same flakiness at that time.

Issue Links

• duplicates: IMPALA-9884 TestAdmissionControllerStress.test_mem_limit failing occasionally
• is related to: IMPALA-8342 TestAdmissionControllerStress test_mem_limit run_admission_test failure