Re: [PERFORM] Vacuum full considered useful ;)

2007-07-14 Thread Vivek Khera
On Jul 14, 2007, at 11:50 AM, Patric de Waha wrote: Yesterday I switched from 8.1 to 8.2. So I needed to dump the dbase and reimport it. The dbase after 4 months of running without "vacuum full" reached 60 gigabyte of diskspace. Now after a fresh import it only has 5 gigabyte!

Re: [PERFORM] Vacuum full considered useful ;)

2007-07-14 Thread Guillaume Lelarge
Joshua D. Drake a écrit : No wonder, I got IO problems with such a fragmentation. For people not very familiar with postgres especially those coming from mysql, i'd recommend paying attention to this. Definitely. The problem here is that you just aren't vacuuming enough, not that

Re: [PERFORM] Vacuum full considered useful ;)

2007-07-14 Thread Tom Lane
Patric de Waha <[EMAIL PROTECTED]> writes: > Yesterday I switched from 8.1 to 8.2. So I needed to dump the dbase > and reimport it. The dbase after 4 months of running without "vacuum > full" > reached 60 gigabyte of diskspace. Now after a fresh import it only > has 5 gigabyte! >

Re: [PERFORM] Vacuum full considered useful ;)

2007-07-14 Thread Joshua D. Drake
No wonder, I got IO problems with such a fragmentation. For people not very familiar with postgres especially those coming from mysql, i'd recommend paying attention to this. Definitely. The problem here is that you just aren't vacuuming enough, not that you didn't vacuum full. I

[PERFORM] Vacuum full considered useful ;)

2007-07-14 Thread Patric de Waha
Hi, Something I'd like to share. I switched to postgres about 4 months ago. The perfomance after a while got worse. I posted a message here, where the result was that my IO was the problem. I run vacuum every night. I never used vacuum full because it is not explicitly reco

Re: [PERFORM] FORGOT TO CONFIGURE RAID! DELL POWEREDGE 2950

2007-07-14 Thread Hannes Dorbath
Gregory Stark wrote: >> From the DELL site it seems this `PERC 5/i' on board controller >> (assuming that's what you have) doesn't even have a BBU. If you don't >> plan to post here in a few weeks again about data corruption, go out and >> shop a serious controller. > > This is a bit of a strange

Re: [PERFORM] FORGOT TO CONFIGURE RAID! DELL POWEREDGE 2950

2007-07-14 Thread Gregory Stark
"Hannes Dorbath" <[EMAIL PROTECTED]> writes: > From the DELL site it seems this `PERC 5/i' on board controller > (assuming that's what you have) doesn't even have a BBU. If you don't > plan to post here in a few weeks again about data corruption, go out and > shop a serious controller. This is a

Re: [PERFORM] FORGOT TO CONFIGURE RAID! DELL POWEREDGE 2950

2007-07-14 Thread Steinar H. Gunderson
On Sat, Jul 14, 2007 at 10:29:05AM +0200, Hannes Dorbath wrote: > From the DELL site it seems this `PERC 5/i' on board controller > (assuming that's what you have) doesn't even have a BBU. If you don't > plan to post here in a few weeks again about data corruption, go out and > shop a serious contr

Re: [PERFORM] FORGOT TO CONFIGURE RAID! DELL POWEREDGE 2950

2007-07-14 Thread Hannes Dorbath
Joseph wrote: > We just got a DELL POWEREDGE 2950. So I was tasked with putting > Linux Redhat and dumped our software/packages on it. Contrary to > common sense, I didn't bother reading the manuals that came with te > 2950. I went right ahead and installed Redhat server on it, then went > and