Incorrect key file for table mysql errors

[NeverBored]

Thanks for the reply. There is only about 9000 threads currently (don't know if that would be considered a lot). It has good purpose to get random results every page load, but I understand it may not be efficient. From a performance stand point, would it make any difference if I limited it to threads within a small date range rather than picking from all the threads?

Interestingly the error emails seemed to have now changed over the past 24 hours to mostly "Got error -1 from storage engine"