Mathserv Down-ish Wed. Evening

Mathserv was extrememly slow between 7:00 pm and 11:00 pm on Wednesday evening, often to the point of being unresponsive; this affected email, web and msprime workstation services. I rebooted mathserv at 11:00 in order to let it shake itself out after spending an hour isolating the source of the problem (during which hour mathserv was sometimes just fine and sometimes miserably slow).

For those who are interested: mathserv was swamped by a huge file transfer. It should not have reacted quite so badly as it did, so I'll be investigating further.