Tom, > I think you are probably looking at the same problem previously reported > by Josh Berkus among others. Does the rate of context swaps shown by > vmstat go through the roof when this happens? If you strace or ktrace > one of the backends, do you see lots of semop()s and little else?
That would be interesting. Previously we've only demonstrated the problem on long-running queries, but I suppose it could also affect massive concurrent query access. -- Josh Berkus Aglio Database Solutions San Francisco ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
