Excerpts from Josh Berkus's message of jue ene 20 18:05:15 -0300 2011: > > One of our clients is seeing an unusual issue with statements which are > waiting going into sleep forever and never completing. This first > e-mail is for a "has anyone else seen this problem before?" while we try > to collect additional information for a diagnosis.
I have seen it -- on 8.1 too. On our case it was caused by an insert that was doing lots of toast insertions, so it needed to grab the extension lock frequently for the toast table; and this was slowed down by a largish shared_buffers setting, somehow (8.1 doesn't have lock partitioning, so this was expensive). I don't recall details on why these were related. If this is your case too, I doubt you'd be able to reproduce it in 9.0 (not even in 8.2 which is when lock partitioning was introduced). -- Álvaro Herrera <alvhe...@commandprompt.com> The PostgreSQL Company - Command Prompt, Inc. PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
