- The before_send filter caught redis.exceptions.ConnectionError but
not redis.exceptions.TimeoutError — in redis-py the two are
siblings under RedisError, not parent/child, so a redis outage that
hangs the socket (rather than refusing) slipped through to Sentry
- Surfaced post-deploy as ANTHIAS-1B (Timeout connecting to server,
viewer resolution reporter) once the build-hash release tags made
it identifiable
- Match on both types; add the redis-stubs TimeoutError entry and a
regression test that also pins the sibling (not subclass) relation
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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