RE: [vchkpw] High server load with large number of files in maildir

2004-11-03 Thread Nick Harring
> Jesse Guardiani wrote: > > On Tuesday 02 November 2004 1:55 pm, Casey Zacek wrote: > > > > I do *NOT*, under any circumstances, recommend reiserfs on a > > production machine. One good system crash/power outage and > you can kiss > > your data good-bye. I know from personal experience. Reiserfs

Re: [vchkpw] High server load with large number of files in maildir

2004-11-03 Thread Jesse Guardiani
On Wednesday 03 November 2004 5:00 am, Fabrizio Frosali - Impulso Srl wrote: > > > > >I currently have a 2Gb personal maildir quota, and I'm currently using > >1Gb. I use IMAP. Full IMAP subfolder queries ("check all folders for > >new mail", etc...) are a CPU hog for large mailboxes, and changing

Re: [vchkpw] High server load with large number of files in maildir

2004-11-03 Thread Fabrizio Frosali - Impulso Srl
I currently have a 2Gb personal maildir quota, and I'm currently using 1Gb. I use IMAP. Full IMAP subfolder queries ("check all folders for new mail", etc...) are a CPU hog for large mailboxes, and changing your filesystem isn't going to help that much. For those of you familiar with Big-O notatio

Re: [vchkpw] High server load with large number of files in maildir

2004-11-02 Thread Rick Macdougall
Jesse Guardiani wrote: On Tuesday 02 November 2004 1:55 pm, Casey Zacek wrote: I do *NOT*, under any circumstances, recommend reiserfs on a production machine. One good system crash/power outage and you can kiss your data good-bye. I know from personal experience. Reiserfs4 *may* change all of tha

Re: [vchkpw] High server load with large number of files in maildir

2004-11-02 Thread Jesse Guardiani
On Tuesday 02 November 2004 1:55 pm, Casey Zacek wrote: > Jason Wilkinson wrote (at Tue, Nov 02, 2004 at 12:24:24PM -0600): > > > > > > Some examples of non-ancient filesystems: > > > reiserfs > > > UFS with DIR_HASH > > > xfs > > > > > > -Jeremy > > > > What version of reiserfs are you most com

Re: [vchkpw] High server load with large number of files in maildir

2004-11-02 Thread Rick Macdougall
Bill Wichers wrote: use a non-ancient filesystem that doesn't slow down with more than a few thousand files in a directory. I have 22000 emails in one imap folder on my server (and tens of thousands on other folders) and have zero slowdown with reiserfs. Sounds like you have had good luck with r

Re: [vchkpw] High server load with large number of files in maildir

2004-11-02 Thread Casey Zacek
Jason Wilkinson wrote (at Tue, Nov 02, 2004 at 12:24:24PM -0600): > > > > Some examples of non-ancient filesystems: > > reiserfs > > UFS with DIR_HASH > > xfs > > > > -Jeremy > > What version of reiserfs are you most comfortable using at the moment? > I run 3.6. It's still slow (mostly readdi

Re: [vchkpw] High server load with large number of files in maildir

2004-11-02 Thread Bill Wichers
> in fact, you'd probably see a huge decrease in load simply by removing the > catchall. One of our customers had, I estimated (simply by how long it > took > to remove the directory) over 15 million emails in their catchall account. > I > disabled the catchall and their 200k message queue cleane

RE: [vchkpw] High server load with large number of files in maildir

2004-11-02 Thread Jason Wilkinson
Jeremy Kitchen wrote: > On Tuesday 02 November 2004 11:21 am, Bill Wichers wrote: >> I recently have been moving user domains from an old qmail+vpopmail >> server to a new one due in large part to hugely increased spam >> filter load (grumble). Anyway, I found one user with some 5+ GB of >> presuma

Re: [vchkpw] High server load with large number of files in maildir

2004-11-02 Thread Jeremy Kitchen
On Tuesday 02 November 2004 11:21 am, Bill Wichers wrote: > I recently have been moving user domains from an old qmail+vpopmail server > to a new one due in large part to hugely increased spam filter load > (grumble). Anyway, I found one user with some 5+ GB of presumably all spam > in their postma

Re: [vchkpw] High server load with large number of files in maildir

2004-11-02 Thread Rick Macdougall
Bill Wichers wrote: I recently have been moving user domains from an old qmail+vpopmail server to a new one due in large part to hugely increased spam filter load (grumble). Anyway, I found one user with some 5+ GB of presumably all spam in their postmaster account (which was a catch all). The new