Partial revert of #12369 for celery visibility timeout #12442
Merged
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We are noticing all builds restarting at 17.25m (15m * 115%), reverting this back to 5hours for now. In theory, tasks are being executed with ack_late=False so they should immediately acknowledge the task and avoid the visibility timeout entirely. But in practice this doesn't seem to happen and the build task acts like ack_late=True with a 17.25min visibility timeout, duplicating the build task on another builder.
ACKS_LATE
for long builds #12393