[Dovecot] lock files causing time outs with Thunderbird

[CJ Keist]

Okay,
    I think I got a test that can recreate the .lock file staying around 
so long.  I have trash folder with about 3500 messages in it. I went in 
and deleted two messages from the Trash folder.  I then clicked back to 
my inbox.  There was a long pause where Thunderbird was saying " Closing 
folder"  Then another long pause as it said "Opening folder".  After 
about two minutes thunderbird looks to have stopped processing and 
displayed my inbox.  But the Trash.lock file stuck around for about 
another 5 minutes.
    Ran ptruss on the pid that still had the Trash folder open. There 
was no pid for the Trash.lock file during this time.  It looks to be 
doing seeks, stats, reads and writes over and over again.  Attached is a 
partial listing of the ptruss command till the lock file went away.

Dovecot 1.1.16
Thunderbird 2.0.0.16



Timo Sirainen wrote:
> On Fri, 2009-07-24 at 16:25 -0600, CJ Keist wrote:
>> Yes, I'm talking about Trash.lock files, not seeing any errors in the 
>> log files related with lock files.
> 
> Can you look at what Dovecot is doing while those .lock files exist? You
> can get the process pid from the .lock file and then do:
> 
> truss -d -p <pid>
> 
> And what process is it that's keeping those .lock files long? The same
> imap process that's trying to open the mailbox?
> 
>> Yes, I am using dovecot deliver.  So does that mean I should not set 
>> mbox_very_dirty_syncs to yes?
> 
> It means it shouldn't make a difference if it's set or not. But I guess
> you could try if enabling it happens to help for some reason..
> 

-- 
C. J. Keist                     Email: cj.keist at colostate.edu
UNIX/Network Manager            Phone: 970-491-0630
Engineering Network Services    Fax:   970-491-5569
College of Engineering, CSU
Ft. Collins, CO 80523-1301

All I want is a chance to prove 'Money can't buy happiness'
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