As far as having the 2.2 GB of xlogs, someone more knowledgeable of this would need to answer that.
Hi Stefan,
These pg_xlog files are, as you said, 16MB files that store all the transactions made to your database – if you're doing regular SQL dump backups, and you know you won't need Point-In-Time (PITR) recovery, you won't need these files.
However, you will need to arrange for old files to be automatically archived into a separate folder outside of your pg_xlog directory, by setting an archive_command in the WAL configuration in postgresql.conf. A dead simple command looks like this:
Archive_command = "mv %p /your/backup/directory/%f"
This tells PGSQL to move ("mv") the file no longer in use "%p" to the directory "/your/backup/directory/" with the filename "%f". %f is the original filename of the file being archived.
Once you've put that in, killall –HUP postmaster, and you should notice your files being moved out. Note: the postgresql Unix user (from /etc/passwd) will need write access to /your/backup/directory.
Tip: if you're absolutely sure you will never need these transaction logs, you can use the following command to delete them when they're finished with:
Archive_command = "rm –f %p"
Or
Archive_command = "mv %p /dev/null"
This is for PostgreSQL 8.0 above, I believe it should be the same for 7.2.
Hope this helps!
Andy
From: pgsql-admin-owner@xxxxxxxxxxxxxx [mailto: pgsql-admin-owner@xxxxxxxxxxxxxx] On Behalf Of Stefan.Schmidt@xxxxxxxxxxx
Sent: 20 June 2006 11:31 am
To: pgsql-admin@xxxxxxxxxxxxxx
Subject: [ADMIN] 2,2gb of pg_xlog ??
Hi,
I'm new to pgsql, so please be kind ;-)
ok here my problem:
I have a linux box with Debian Woody and pgsql 7.2.
The problem is in the pg_xlog hold about 137 files with 16 MB each, the oldest file is from 2005.
I read the WAL docu but as far as I'm understandig it, it should be auto cleand as long as isn't configured otherwise.
But it is not, all options mentioned in the WAL doku are not set..
Any suggestions?
here is my postgres.conf
------
fsync = offdebug_level = 0
log_connections = off
log_pid = on
log_timestamp = on
syslog = 1
# if syslog is 0, turn silent_mode off!
silent_mode = off
syslog_facility = LOCAL0
trace_notify = off
max_connections = 64
# shared_buffers must be at least twice max_connections, and not less than 16
shared_buffers = 128
# TCP/IP access is allowed by default, but the default access given in
# pg_hba.conf will permit it only from localhost, not other machines.
tcpip_socket = on
sort_mem = 512
------
cu
!DSPAM:14,449a31b6256849416340232!
