The EE test test_self_events seems flaky. In what follows the stacktrace is provided.
Since this test was recently added by https://issues.apache.org/jira/browse/IMPALA-9101 and reviewed by Quanlong Huang, maybe you could provide some insight into it? The JIRA is assigned to Vihang Karajgaonkar for now, but please feel free to re-assign it to others as appropriate. Thanks!