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Tilt mode

https://redis.io/docs/management/sentinel/

The TILT mode is a special "protection" mode that a Sentinel can enter when something odd is detected that can lower the reliability of the system. The Sentinel timer interrupt is normally called 10 times per second, so we expect that more or less 100 milliseconds will elapse between two calls to the timer interrupt.

I saw this under 30 RPS perf tests.

redis-sentinel1  | 10:X 01 May 2023 01:51:06.042 # +tilt #tilt mode entered
redis-sentinel2  | 10:X 01 May 2023 01:51:06.071 # +tilt #tilt mode entered

redis-sentinel2  | 10:X 01 May 2023 01:51:36.086 # -tilt #tilt mode exited
redis-sentinel1  | 10:X 01 May 2023 01:51:36.101 # -tilt #tilt mode exited