Re: [HACKERS] PostgreSQL performance issues

2007-10-22 Thread Deblauwe Gino
Tiago J. Adami schreef: Hi all, I'm working for a brazillian company developing and maintaining a ERP sw that uses PostgreSQL as it main OLTP database system. We're just to start the migration to IBM DB2 because of many performance issues. I searched the solution for these performance problems

Re: [HACKERS] First steps with 8.3 and autovacuum launcher

2007-10-12 Thread Deblauwe Gino
Simon Riggs schreef: On Fri, 2007-10-12 at 11:44 +0200, Michael Paesold wrote: Simon Riggs wrote: On Fri, 2007-10-12 at 01:24 -0400, Alvaro Herrera wrote: Yes, I think it is easy to mark the "is for xid wraparound" bit in the WorkerInfo struct and have the cancel work only if it

Re: [HACKERS] First steps with 8.3 and autovacuum launcher

2007-10-12 Thread Deblauwe Gino
Simon Riggs schreef: On Fri, 2007-10-12 at 07:17 +0100, Simon Riggs wrote: On Fri, 2007-10-12 at 01:24 -0400, Alvaro Herrera wrote: Michael Paesold escribió: Simon Riggs wrote: Hmm, I am not sure we are there, yet. Autovacuum does take extra care to vacuum tables neari

Re: [HACKERS] Possible bugreport 8.3 beta1 on Win32: Looking like a deadlock with AutoVacuum

2007-10-10 Thread Deblauwe Gino
Alvaro Herrera schreef: Deblauwe Gino wrote: OS: Windows XP Pro SP2 CPU: AMD Athlon 64 3500+ RAM: 2GB DB: PostgreSQL 8.3beta1, compiled by Visual C++ build 1400 I've come to the conclusion that it seems like a deadlock occurs when dropping a column in a table the same moment that tab

[HACKERS] Possible bugreport 8.3 beta1 on Win32: Looking like a deadlock with AutoVacuum

2007-10-09 Thread Deblauwe Gino
etail DROP COLUMN btw; (user=gino, 16252 records) deadlocks with VACUUM ANALYZE public.bondetail; (user=postgres) If you wait a very long time, it goes on, the quick method is to cancel the VACUUM command. If you need some more info, let me know. Greetings Deblauwe Gino --