> What I find interesting about that trace is the large proportion of > writes. That appears to me to indicate that it's *not* a matter of > vacuum delays, or at least not just a matter of that. The process seems > to be getting involved in having to dump dirty buffers to disk. Perhaps > the background writer is malfunctioning?
You appear to be correct in that it's write-related. Will be testing on what specificially is producing it. Note that this is one of two ostensibly duplicate servers, and the issue has never appeared on the other server. -- -- Josh Berkus PostgreSQL Experts Inc. http://www.pgexperts.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers