Graham McIntire
c545672efe
Some MikroTik models report `mtxrGaugeValue` (mtxrGaugeUnit=1, °C) in deci-degrees, while others — like the CRS317 in upstream test data — return whole degrees. The MIB doesn't disclose which, so the YAML profile can't pick one literal divisor. Result: a sensor that should read 56.92 °C was being stored and alerted on as 5,692 °C. - Towerops.Snmp.SensorScale.normalize/2: divide-by-10 a temperature reading until it falls below 150 °C, capped at 3 iterations. Other sensor types pass through untouched. - DevicePollerWorker.poll_simple_sensor wires the normaliser in after the YAML divisor is applied, so live polling stops storing bogus values immediately. - DeviceOverheating rule now bounds the query at 150 °C as defense in depth so a future scaling glitch never produces a 5,000 °C alert. - mix towerops.fix_mikrotik_temperature_scaling backfills any rows already in the DB by re-running normalize/2 over them. - routeros.yaml profile gets a comment pointing at the runtime normaliser instead of a wrong unconditional divisor. |
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