I know I don't have a lot of data right now (still looking for core dump) Any obvious thoughts or advice until I can get more info? Dec 30 17:41:57 db-1 postgres[28957]: [ID 748848 local0.crit] [34004622-1] 2009-12-30 17:41:57.825 CST 28957PANIC: right sibling 2019 of block 2018 is not next child of 1937 in index "sl_log_2_idx1" Dec 30 17:46:17 db-1 postgres[17576]: [ID 748848 local0.info] [34005240-1] 2009-12-30 17:46:17.279 CST 17576LOG: autovacuum process (PID 28957) was terminated by signal 6 Dec 30 17:46:17 db-1 postgres[17576]: [ID 748848 local0.info] [34005241-1] 2009-12-30 17:46:17.279 CST 17576LOG: terminating any other active server processes Database recovered itself...and autovacuum of sl_log_2 started up again with no obvious issue right afterwords. PostgreSQL 8.2.12 on i386-pc-solaris2.10, compiled by GCC gcc (GCC) 3.4.3 (csl-sol210-3_4-branch+sol_rpath) Oldish version of slony (1.2.10) -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general