Author: Oliver Egginger Date: To: exim-users Subject: Re: [Exim] Strange problem whilst using Reiserfs
Thank you for your comment,
I will go aback to ext2fs.
I think, in a few years reiserfs is maybe old enough.
:)
regards
Oliver
message from 08 June 2001 09:58: > On Fri, 8 Jun 2001, Oliver Egginger wrote:
> > I have only a few thousand mailboxes (files) in the spool/mail
> > directory (but maybe I will set up an imap-service).
> > Our users store not more than 500 MB of data in there boxes.
> >
> > Is there a big advantage (in connection to exim) that justifies
> > switching to reiserfs ?
>
> i don't think so. i'm using ext2 on a plain simple u2w scsi disk for
> 38000 users (well they don't eat sg like 6 gigs alltogether [they
> tried but i'm cutting their fingers as i type this:)]), the machine
> also serves as a mysql server (partly for exim and
> courier-{pop3,imap}d and party as an authentication source for an
> offmachine ftpd which also is heavily loaded), and i don't have the
> slightest problem with it. i hashed the mail spool in two levels,
> underneath are the maildirs, and it's just fine (using maildir++,
> evel mailquota in exim didn't add noticeble extra load).
>
> my point is that exactly because ext2 is older, it's a safer bet. of
> course if you crash, you'll wait long for the fsck, but, don't crash
>
> :)
> :
> > Are there other topics related to e-mail (pop3, imap etc.) for which
> > reiserfs is a big win?
>
> you first need to decide what storage format you'll use and look at
> the matter from that standpoint. mbox, mh, maildir are all pretty
> different thus they behave very differently and their needs are
> different too.
>
> with mbox, you have one file, which you need to lock, you need to seek
> a hell a lot in. with maildir (maildir++ kicks ass!) you have several
> (thousand even) files, which you don't need to lock, don't need to
> seek in, but you need to readdir a lot, and you can easily have biiiig
> directories.
>
> i found ext2 to be adequate for my needs. i had some strange problems
> with reiser in the past (this is said to be changed since) so i
> converted to ext2 and i don't really see a reason why i should revert
> back as long as i'm not getting random os crashes every day. but then,
> if i will, that will be a whole different problem and switching fs
> won't solve it either..
>
> ymmv, of course :)
