Fixes#73973.
A finite one-shot whose dispatch was claimed (claim_dispatch increments
repeat.completed BEFORE execution) but whose run died before mark_job_run
was left permanently wedged: completed==times, last_run_at null, state
'scheduled'. The run-claim TTL blocked re-dispatch, and once it expired
the dispatch-limit guard silently removed the job with no output and no
error.
Two complementary fixes:
- cron/scheduler.py run_one_job: the outer handler now catches
BaseException, not just Exception. The inner run_job handler re-raises
CancelledError/KeyboardInterrupt/SystemExit after agent teardown, and
none of those are Exception subclasses, so the outer 'except Exception'
missed them and mark_job_run(False) was never called. Failures are now
recorded first (mark_job_run + finish_execution, each independently
guarded), then non-Exception BaseExceptions are re-raised to preserve
teardown semantics. Plain Exceptions keep the existing behavior
(recorded, return False, no re-raise). Empty str(e) (bare
CancelledError) falls back to the exception class name.
- cron/jobs.py: when either removal site (claim_dispatch or the
get_due_jobs dispatch-limit guard) drops a one-shot whose claimed run
never completed (last_run_at null), _write_wedged_oneshot_diagnostic
now writes an operator-visible .md into cron/output/<job_id>/ instead
of vanishing silently. Best-effort: diagnostics can never break the
removal. No diagnostic when last_run_at is set (normal completion
race).
cff9728587