Re: vacuumdb -a -f

Hi,

Thanks for the tips.

Unfortunatley for me, even after started doing vacuumdb -a 3 times a day
and increasing fsm dramatically , the size of the database won't go down
even 1 MB. It's stil at 5.6 GB, size after restore = 4 GB. I even did a
stop/start instead of a re-load to make sure the settings took affect. Would
a reboot help?

max_fsm_pages = 16000001
max_fsm_relations = 1000000

shared_buffers = 65536
work_mem = 32768
maintenance work mem = 786432

checkpoint_segments = 18

##/etc/sysctl.conf

nel.shmall = 524288
#kernel.shmall = 2097152
#kernel.shmmax = 2147483648
#kernel.shmmax = 1073741824
kernel.shmmax = 6979321856
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
vm.overcommit_memory = 2

~DjK

>From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
>To: "D Kavan" <bitsandbytes88(at)hotmail(dot)com>
>CC: pgsql-admin(at)postgresql(dot)org
>Subject: Re: [ADMIN] vacuumdb -a -f Date: Mon, 15 Aug 2005 21:31:01 -0400
>
>"D Kavan" <bitsandbytes88(at)hotmail(dot)com> writes:
> > Even though I run vacuumdb -a -f every night with no exceptions or
>problems,
> > my database size remains 5.6 GB. After I do a dump/restore, the new
> > database size is 4.0 GB. How could that be possible?
>
>The extra 1.6GB probably represents the amount of junk you generate in
>one day. So, forget the -f and instead do plain vacuums on a more
>frequent basis. Make sure your FSM settings are large enough, too.
>
> regards, tom lane