David Craigon wrote:
I am trying to use dovecot. I've got a GFS2 shared volume on two servers
with dovecot running on both. On one server at a time, it works.
Sorry to not answer your question directly, but do you have a good
reason to be using GFS instead of NFS? We experimented with GFS last
year (granted, not GFS2), and found its performance pretty horrible and
its stability comically bad... had we been paying for it, however, it
wouldn't have been funny. OCFS2 was better, but still unreliable. Lustre
was the best we found (it worked, at least), but it required a lot of
hardware/admin overhead. We tried other clustering filesystems as well,
and none of them was worth the trouble.
The test I am trying is to attach two mail programs (MUA) via IMAPS
(Thunderbird and Evolution as it happens). I've attached one mail
program to each IMAPS server. I am trying to move emails around in one
program (from folder to folder), and then checking it on the other
program. I'm testing in effect how it would work if my users log on
twice and end up on different servers.
I seem to suffer from never ending index file corruption:
Apr 4 16:55:49 mailstore-b dovecot:
IMAP([EMAIL PROTECTED]): Corrupted transaction log
file
/mnt/mailstore/e/everybody-loves.craigon.co.uk/d/david/.fish/dovecot.ind
ex.log:
end_offset (284) > current sync_offset (104) Apr 4 16:55:49 mailstore-b
dovecot:
IMAP([EMAIL PROTECTED]): broken sync positions in
index file
/mnt/mailstore/e/everybody-loves.craigon.co.uk/d/david/.fish/dovecot.ind
ex
Apr 4 16:55:49 mailstore-b dovecot:
IMAP([EMAIL PROTECTED]): fscking index file
/mnt/mailstore/e/everybody-loves.craigon.co.uk/d/david/.fish/dovecot.ind
ex
Apr 4 16:55:49 mailstore-b dovecot:
IMAP([EMAIL PROTECTED]): Fixed index file
/mnt/mailstore/e/everybody-loves.craigon.co.uk/d/david/.fish/dovecot.ind
ex:
log file sync pos 1,284 -> 1, 104
Apr 4 16:55:50 mailstore-b dovecot:
IMAP([EMAIL PROTECTED]): Unexpected transaction log
desync with index
/mnt/mailstore/e/everybody-loves.craigon.co.uk/d/david/.fish/dovecot.ind
ex
Apr 4 16:56:18 mailstore-b dovecot:
IMAP([EMAIL PROTECTED]): Transaction log file
/mnt/mailstore/e/everybody-loves.craigon.co.uk/d/david/.fish/dovecot.ind
ex.log:
marked corrupted
This happens pretty quickly. I can also get message duplication- if I
move a message from one server to another, I can get a message in the
original folder and the destination folder.
I am using RC28. I have tried using fcntl locking and dotlocking with
equal lack of success.
Can anyone offer any advice?
David
Griffin Information Systems Ltd
20 St Christopher's Way,
Pride Park,
Derby
DE24 8JY
www.griffin.com <http://www.griffin.com/>
Registered in England and Wales. Company Registration Number: 3676297.
VAT Number: 716604053
