[Dovecot] 1.0-stable update

[Chris Wakelin]

On Tue, 26 Apr 2005 14:17:35 +0300 Timo Sirainen <tss at iki.fi> wrote:

> On Tue, 2005-04-26 at 12:01 +0100, Chris Wakelin wrote:
> > On Tue, 26 Apr 2005 12:57:26 +0300 Timo Sirainen <tss at iki.fi> wrote:
> > 
> > > On Mon, 2005-04-25 at 15:51 +0100, Chris Wakelin wrote:
> > > > I've not seen the UIDVALIDITY issue in the last few days since using 
> > > > dovecot-stable-20050422 but I've noticed it takes much longer to open a 
> > > > message. Looking at protocol dumps, it's taking 3 seconds to do "UID 
> > > > FETCH xxx (UID RFC822.SIZE BODY[])" and another 3 seconds to do "UID 
> > > > STORE xxx +Flags (\Seen)" (using Thunderbird). Is this expected as a 
> > > > result of changing the sync code? Has anybody noticed this with 
> > > > 1.0-test67/68? (I might try and build test68 and see!)
> > > 
> > > I did some changes to it and updated the tarball, maybe it works better
> > > now?
> > 
> > It seems worse. It's getting into a sync_loop (logging "sync_loop XX" 
> > where XX increases) for 20 minutes with my 7191-message INBOX (I 
> > believe in giving it a thorough test!). 
> 
> Oops, I forgot the debug message in there :) It's slow because master
> process starts slowing down the log writing and causing imap process to
> block on log output.
> 
> You could grep for i_info line in src/lib-storage/index/mbox/mbox-sync.c
> and remove it. I'll update the tarball also.

OK done, and it seems better. Mind you, I had mail delayed (and now 
delivered in random order) while it was syncing, which proves the 
locking works, I guess :)

It still seems to have the delay, though :(

> 
> > Then when a new message arrived, it's doing it again :o
> 
> Do you have mbox_dirty_syncs = yes, or did you change mailbox before
> that? Within same SELECT, it should normally just read just the first
> and last two messages when new mail arrives..

I've left it at the default, so I guess that means mbox_dirty_syncs = 
yes.

Best Wishes,
Chris

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Christopher Wakelin,                                c.d.wakelin at reading.ac.uk
IT Services Centre, The University of Reading,       Tel: +44 (0)118 378 8439
Whiteknights, Reading, RG6 2AF, UK                   Fax: +44 (0)118 975 3094