Hi,
In my experiences, I didn't had success
in active/active configurations.
Several issues happened. I think that
this happened because isn't possible
that both Dovecotes works totally synchronized.
On 23-12-2014 07:55, André Bauer wrote:
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Hi,
do you have both dovecot servers active?
Im not completly sure if this will work.
Imho you should try an active / passive setup...
Regards
André
Am 21.12.2014 um 08:34 schrieb Michael Schwartzkopff:
Hi,
I wanted t test gluster a little bit for the usage in Dovecot
Postbox Serves.
I set up two servers with a replicated gluster and mounted the
bricks via gluster client. On these two nodes I installed dovecot.
So I created a high available test szenario.
I configured dovecdot to usr maildir format and mainly copied the
dovecot options for NFS setup:
mail_fsync = always mail_nfs_storage = yes mail_nfs_index = yes
mmap_disable = yes
Basically that tells dovecot to use fcntl() locks.
With the thunderbird IMAP client I accessed te two postboxes on
the two node. One client the first dovecot node, the other client
the second node. Both used the same user, so did access the same
maildir files.
First everything looked good, but within ten minutes of creating,
moving and deleting mails and folders I produced the following
log:
node2 dovecot: imap(user1@xxxxxxxxxxx): Error: Corrupted
transaction log file /srv/mail/user1@xxxxxxxxxxx/dovecot.index.log
seq 3: file_seq=3, min_file_offset (4768) > max_file_offset (3392)
(sync_offset=3392)
node2 dovecot: imap(user1@xxxxxxxxxxx): Error: Index
/srv/mail/user1@xxxxxxxxxxx/dovecot.index: Lost log for seq=3
offset=2948
node2 dovecot: imap(user1@xxxxxxxxxxx): Warning: fscking index
file /srv/mail/user1@xxxxxxxxxxx/dovecot.index
The mailbox was not accessible any more and dovecot did not accept
any new mails for the user.
Any ideas what went wrong? I this a legitimate use case for
gluster? Could I prevent this from happening if I restrict oew
user access only o one gluster node?
Mit freundlichen Grüßen,
Michael Schwartzkopff
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Mit freundlichen Grüßen
André Bauer
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André Bauer
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