[Gluster-users] Dovecot and glusterfs

[Volnei Puttini]

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 at example.net): Error: Corrupted
>> transaction log file /srv/mail/user1 at example.net/dovecot.index.log
>> seq 3: file_seq=3, min_file_offset (4768) > max_file_offset (3392)
>> (sync_offset=3392)
>>
>> node2 dovecot: imap(user1 at example.net): Error: Index
>> /srv/mail/user1 at example.net/dovecot.index: Lost log for seq=3
>> offset=2948
>>
>> node2 dovecot: imap(user1 at example.net): Warning: fscking index
>> file /srv/mail/user1 at example.net/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
>>
>>
>>
>> _______________________________________________ Gluster-users
>> mailing list Gluster-users at gluster.org
>> http://www.gluster.org/mailman/listinfo/gluster-users
>>
>
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> André Bauer
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