662fd1feb9
We're seeing a growing backlog of email events that all must funnel through the single thread allocated to sending email. We think this may be related to server slowness that we are observing. Bump the number of threads to 4 to see if that flushes the queues quicker and gives us a more responsive server. Change-Id: I730c8f657191cedb46f81f4abc0e1796ef847b27
Run Gerrit.