Re: [GENERAL] WAL Archiving frequency
On March 31, 2006 10:39 pm, Brendan Duddridge <[EMAIL PROTECTED]> wrote: > Thanks Tom, > > I just didn't know if that was normal or not. I actually saw 4 WAL > files / minute today. I set checkpoint_segments = 128, so maybe that > will help. That's normal, if your database is busy. I get up to 6 a minute during busy times. They compress quite well, fortunately. -- "None are more hopelessly enslaved than those who falsely believe they are free." -- Johann W. Von Goethe ---(end of broadcast)--- TIP 6: explain analyze is your friend
Re: [GENERAL] WAL Archiving frequency
Thanks Tom, I just didn't know if that was normal or not. I actually saw 4 WAL files / minute today. I set checkpoint_segments = 128, so maybe that will help. Thanks, Brendan Duddridge | CTO | 403-277-5591 x24 | [EMAIL PROTECTED] ClickSpace Interactive Inc. Suite L100, 239 - 10th Ave. SE Calgary, AB T2G 0V9 http://www.clickspace.com On Mar 31, 2006, at 8:47 PM, Tom Lane wrote: Brendan Duddridge <[EMAIL PROTECTED]> writes: I've noticed that it's archiving the 16 MB wal files about once every minute. Is this normal? There's a huge number of files in my wal_archives directory now. Is there a parameter to tell it not to archive so frequently? Or is this nothing to be too concerned about? If you've got a reasonably active database, 16MB/minute is not an unlikely rate of WAL generation. You can probably slow it down a bit by increasing the checkpoint-spacing parameters, but you can't just say "don't generate so much WAL please". Either you want a log or you don't. Basically, you have to take base backups often enough that the total number of WAL archive files needed stays under your threshold of pain... regards, tom lane ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster smime.p7s Description: S/MIME cryptographic signature
Re: [GENERAL] WAL Archiving frequency
Brendan Duddridge <[EMAIL PROTECTED]> writes: > I've noticed that it's archiving the 16 MB wal files about once every > minute. Is this normal? There's a huge number of files in my > wal_archives directory now. > Is there a parameter to tell it not to archive so frequently? Or is > this nothing to be too concerned about? If you've got a reasonably active database, 16MB/minute is not an unlikely rate of WAL generation. You can probably slow it down a bit by increasing the checkpoint-spacing parameters, but you can't just say "don't generate so much WAL please". Either you want a log or you don't. Basically, you have to take base backups often enough that the total number of WAL archive files needed stays under your threshold of pain... regards, tom lane ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster
[GENERAL] WAL Archiving frequency
Hi,I've setup WAL file archiving to my SAN storage over the network (using an NFS mount to the file server).I've noticed that it's archiving the 16 MB wal files about once every minute. Is this normal? There's a huge number of files in my wal_archives directory now.Is there a parameter to tell it not to archive so frequently? Or is this nothing to be too concerned about?Thanks, Brendan Duddridge | CTO | 403-277-5591 x24 | [EMAIL PROTECTED] ClickSpace Interactive Inc. Suite L100, 239 - 10th Ave. SE Calgary, AB T2G 0V9 http://www.clickspace.com smime.p7s Description: S/MIME cryptographic signature
