25867499672
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Ran 14 May 2026 03:03PM UTC

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Build # 25867499672

Build Type

push

github

Committed by

Slach

Commit Message

test(skipNotExistsTable): bisection controller for drop timing

Replace log-timestamp calibration with a simple bisection: on
"no tables for backup" push pause UP (drop fired too early),
on a clean success push it DOWN (drop missed the FREEZE window).
The previous algorithm matched substring "create_table_query"
against a system.columns probe (line is logged before the table
existence check), so under RUN_PARALLEL=8 contention pause
converged ~57ms — exactly the moment of the system.tables SELECT,
where drop won every race and produced 95/100 "no tables for backup"
with zero code:60 captured.

Also drop unconditionally in the consumer goroutine; the previous
"if pause > 0" guard skipped the drop entirely when the controller
sat at 0, preventing any signal from feeding back.

Verified locally with full RUN_PARALLEL=8 ./test/integration/run.sh
suite: TestSkipNotExistsTable PASS (4.45s), CODE 60 caught.

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