Flaky test: IngestionDockerTest.test_runIndexTask_andKillData #20431

This issue was generated automatically by Claude Code (Anthropic's AI coding agent) running a scheduled CI-triage routine on behalf of @FrankChen021. Analysis and suggested fixes are AI-produced; please verify before acting on them.

Status: Resolved by #20291
Subject: IngestionDockerTest.test_runIndexTask_andKillData (embedded-tests, docker-tests)
Failures: 1 · First seen: 2026-09-10 · Last seen: 2026-09-10

Root cause

After the kill task, the test waits 240 s for a single segment/schemaCache/dataSource/removed event from the Broker, so one missed or late emission fails the test. The test's sys.segments check was already moved to polling in #19416; this metric wait was not.

Suggested fix

#20291 (merged 2026-09-26) emits segment/schemaCache/dataSource/removed from the Broker's last-segment callback, so the metric no longer depends on a background refresh. Close after 7 days with no recurrence; if it recurs, poll the Broker schema or sys.segments instead of waiting for one metric event.

Occurrences

Failed push-triggered master jobs only. The daily triage routine adds one row per new failed job.