Re: [ADMIN] Help understanding VACUUM info on 7.4.5

2005-04-01 Thread Chris White (cjwhite)
Thanks, for the input. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Lane Sent: Friday, April 01, 2005 1:49 PM To: [EMAIL PROTECTED] Cc: pgsql-admin@postgresql.org Subject: Re: [ADMIN] Help understanding VACUUM info on 7.4.5 "Chris

Re: [ADMIN] Help understanding VACUUM info on 7.4.5

2005-04-01 Thread Tom Lane
"Chris White \(cjwhite\)" <[EMAIL PROTECTED]> writes: > Does this mean it could be any transaction, even one that has not done > anything with large objects, but one that started prior to the large objects > being deleted? Exactly. > All access to the DB is done via JDBC, so has this JDBC issue b

Re: [ADMIN] Help understanding VACUUM info on 7.4.5

2005-04-01 Thread Chris White (cjwhite)
PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Lane Sent: Friday, April 01, 2005 1:07 PM To: [EMAIL PROTECTED] Cc: pgsql-admin@postgresql.org Subject: Re: [ADMIN] Help understanding VACUUM info on 7.4.5 "Chris White (cjwhite)" <[EMAIL PROTECTED]> writes: > Below I have in

Re: [ADMIN] Help understanding VACUUM info on 7.4.5

2005-04-01 Thread Tom Lane
"Chris White (cjwhite)" <[EMAIL PROTECTED]> writes: > Below I have info which shows a DB which has had all objects deleted and > then vacuumed. As can been seen it say it has "9014 dead rows that can't > been removed". What does that mean? That means there's an open transaction that is old enough

[ADMIN] Help understanding VACUUM info on 7.4.5

2005-04-01 Thread Chris White (cjwhite)
Hi,   I am running Postgres 7.4.5 and am storing binary objects in the largeobject table. We want to keep the size of the database and especially the large object table to a minimum, so we vacuum it (not full) on a regular basis. However, what we have seen is that even after deleting entries