[CASSANDRA-16196] Fix flaky test test_disk_balance_after_boundary_change_lcs - disk_balance_test.TestDiskBalance

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 4.0
• Component/s: Test/dtest/python
• Bug Category: Correctness - Test Failure
• Severity: Normal
• Complexity: Normal
• Discovered By: Unit Test
• Platform: All
• Since Version: 4.0

Source Control Link

https://github.com/apache/cassandra-dtest/commit/9500cb982b579dba95e0765aa1c13b436777c3be

Test and Documentation Plan

ran CI
No doc update

• Assignee: Adam Holmberg
• Reporter: David Capwell

Authors

Adam Holmberg

Reviewers

Berenguer Blasi, Brandon Williams

• Created: 06/Oct/20 22:16
• Updated: 03/Nov/23 16:43
• Resolved: 26/Oct/20 04:23

Description

https://app.circleci.com/pipelines/github/dcapwell/cassandra/622/workflows/adcd463c-156a-43c7-a9bc-7f3e4938dbe8/jobs/3514

        error_message = '' if 'error_message' not in kwargs else kwargs['error_message']
        assert vmin > vmax * (1.0 - error) or vmin == vmax, \
>           "values not within {:.2f}% of the max: {} ({})".format(error * 100, args, error_message)
E       AssertionError: values not within 10.00% of the max: (8022760, 9192165, 4575645, 9235566, 9091014) (node2)

tools/assertions.py:206: AssertionError

Marking as distinct issue after chat in CASSANDRA-14030

Issue Links

• is related to: CASSANDRA-18947 Test failure: dtest-novnode.disk_balance_test.TestDiskBalance.test_disk_balance_stress