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Mentor Requests: add randomness to the Exercism track polling interval #150

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Nov 1, 2025
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Mentor Requests: add randomness to the Exercism track polling interval #150

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4 changes: 4 additions & 0 deletions cogs/mentor_requests.py
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Original file line number Diff line number Diff line change
Expand Up @@ -231,6 +231,10 @@ def queue_query_exercism(self, track: str) -> None:
"""Queue a task to query Exercism for a track."""
interval = self.exercism_poll_interval(track)
PROM_EXERCISM_INTERVAL.labels(track).set(interval)
# Fuzz the delay. Wait at least the min. Wait 50-100% of the additional time.
half_over = (interval - EXERCISM_TRACK_POLL_MIN_SECONDS) // 2
interval = EXERCISM_TRACK_POLL_MIN_SECONDS + half_over + random.randint(0, half_over)

task_time = int(time.time()) + interval
logger.debug("Queue TASK_QUERY_EXERCISM %s in %d seconds", track, interval)
self.queue.put_nowait((task_time, TaskType.TASK_QUERY_EXERCISM, track, None))
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