I'm experiencing the same thing with 9.0.4 running on win server 2003. Reams of messages like this... (I've changed the database names in the following log snipit) 2013-11-22 09:37:42 CST ERROR: canceling autovacuum task 2013-11-22 09:37:42 CST CONTEXT: automatic vacuum of table "x1.pg_catalog.pg_shdepend" 2013-11-22 09:37:42 CST ERROR: canceling autovacuum task 2013-11-22 09:37:42 CST CONTEXT: automatic vacuum of table "x2.pg_catalog.pg_shdepend" 2013-11-22 09:37:43 CST ERROR: canceling autovacuum task 2013-11-22 09:37:43 CST CONTEXT: automatic vacuum of table "x3.pg_catalog.pg_shdepend" 2013-11-22 09:37:44 CST ERROR: canceling autovacuum task 2013-11-22 09:37:44 CST CONTEXT: automatic vacuum of table "x4.pg_catalog.pg_shdepend" 2013-11-22 09:37:45 CST ERROR: canceling autovacuum task 2013-11-22 09:37:45 CST CONTEXT: automatic vacuum of table "x5.pg_catalog.pg_shdepend" 2013-11-22 09:37:45 CST ERROR: canceling autovacuum task 2013-11-22 09:37:45 CST CONTEXT: automatic vacuum of table "x6.pg_catalog.pg_shdepend" 2013-11-22 09:37:46 CST ERROR: canceling autovacuum task 2013-11-22 09:37:46 CST CONTEXT: automatic vacuum of table "x7.pg_catalog.pg_shdepend" 2013-11-22 09:37:47 CST ERROR: canceling autovacuum task 2013-11-22 09:37:47 CST CONTEXT: automatic vacuum of table "x8.pg_catalog.pg_shdepend" 2013-11-22 09:37:48 CST ERROR: canceling autovacuum task 2013-11-22 09:37:48 CST CONTEXT: automatic vacuum of table "x9.pg_catalog.pg_shdepend" 2013-11-22 09:37:48 CST ERROR: canceling autovacuum task 2013-11-22 09:37:48 CST CONTEXT: automatic vacuum of table "x10.pg_catalog.pg_shdepend" 2013-11-22 09:37:49 CST ERROR: canceling autovacuum task 2013-11-22 09:37:49 CST CONTEXT: automatic vacuum of table "x11.pg_catalog.pg_shdepend" 2013-11-22 09:37:50 CST ERROR: canceling autovacuum task 2013-11-22 09:37:50 CST CONTEXT: automatic vacuum of table "x12.pg_catalog.pg_shdepend" 2013-11-22 09:37:51 CST ERROR: canceling autovacuum task 2013-11-22 09:37:51 CST CONTEXT: automatic vacuum of table "x13.pg_catalog.pg_shdepend" 2013-11-22 09:37:52 CST ERROR: canceling autovacuum task 2013-11-22 09:37:52 CST CONTEXT: automatic vacuum of table "x15.pg_catalog.pg_shdepend" 2013-11-22 09:37:52 CST ERROR: canceling autovacuum task 2013-11-22 09:37:52 CST CONTEXT: automatic vacuum of table "x14.pg_catalog.pg_shdepend" 2013-11-22 09:37:53 CST ERROR: canceling autovacuum task The messages travel across ALL the databases that we have but only seem to involve the pg_shdepend table. They even involve the template databases, and databases that have virtually no activity. 2013-11-22 09:38:03 CST CONTEXT: automatic vacuum of table "template0.pg_catalog.pg_shdepend" 2013-11-22 08:25:14 CST CONTEXT: automatic analyze of table "template1.pg_catalog.pg_shdepend" The errors repeat approximately every minute. -- View this message in context: http://postgresql.1045698.n5.nabble.com/pg-shdepend-vacuum-tp5744209p5779785.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
