[Dovecot] Problems with dovecot using Maildir on JFS.

[Willem Riede]

On 02/12/2005 11:58:23 AM, Timo Sirainen wrote:
> On Sat, 2005-02-12 at 15:38 +0000, Willem Riede wrote:
> > > JFS doesn't update directory's mtime when files are added, removed or
> > > renamed in it. So Dovecot can't know when the maildir has changed
> > > without constantly reading its contents. With Linux's dnotify this could
> > > be kind of worked around, but I'm not really interested about doing
> > > that.
> > 
> > [wriede at serve ~]$ mount | grep jfs
> > /dev/mapper/VolGroup00-LogVol01 on /home type jfs (rw)
> ...
> > Comments? Willem Riede.
> 
> So, does Dovecot+Maildir work properly with it?

Actually, I'm still on mbox, but converting to Maildir is on my to-do list,
so I can't say (yet).

> I'm pretty sure I tested myself at some point that JFS didn't update it.
> Maybe there are different versions of it?

If you google for "jfs mtime patch linux" you can find patches to have mtime  
updated at the right points, so I guess it was broken once, so maybe your test  
was a long time ago?

> If the problem isn't mtime, I can't really think of what it could be.
> Guess I should build jfs support to my kernel some day.

And I'll report as and when I find the time to experiment with Maildir on JFS.

Regards, Willem Riede.