Forward warning that OOF may be unavailable over the next few days.
With the predicted extreme hot weather coming over the next few days we may have to temporarily turn off the physical servers that run OOF, which will result in OOF being completely unavailable.
We use standard (UK spec, not adverse conditions) HPE servers that will automatically shut down once the ambient temperature reaches 41C to protect itself. To protect data integrity, we always proactively monitor this temperature and gracefully shut down the servers once the ambient is in the high 30s, as we have already had to do to one of the servers a few times in the last week already (normally we run with resilience, so nobody has noticed this yet).
Given the outdoor temperatures are predicted to reach up to 40C over the next week in the southern part of the UK, its highly likely we will be in this situation. With the servers powered down, OOF simply won't respond - you will see timeout errors or Page Not Responding errors.
In addition, once the temperatures drop sufficiently to power the servers back on, we will only do so if we believe we can keep them on for at least 12-16 hours, due to the way our distributed storage system has to resync all the data.
We also have a 10Gb switch in the path between these servers and the Internet, which has been alerting high temperature alarms, but hasn't shut itself down or misbehaved as of yet...
As always, we apologise for the inconvenience it causes, but also know that the majority of our users are in Western Europe, and will be similarly suffering, and not doing anything major to their cars!
Stay safe, and remember to keep an eye out for elderly relatives during this time.