On Fri, Mar 23, 2012 at 7:39 AM, <[email protected]> wrote:
> On Wed, 21 Mar 2012 09:56:12 -0600, James Devine <[email protected]> > wrote: > > Anyone know how to setup dovecot with mdbox so that it can be used > through > > shared storage from multiple hosts? I've setup a gluster volume and am > > sharing it between 2 test clients. I'm using postfix/dovecot LDA for > > delivery and I'm using postal to send mail between 40 users. In doing > > this, I'm seeing these errors in the logs > > > > Mar 21 09:36:29 test-gluster-client2 dovecot: lda(testuser34): Error: > Fixed > > index file /mnt/testuser34/mdbox/storage/dovecot.map.index: > messages_count > > 272 -> 271 > > Mar 21 09:36:30 test-gluster-client2 dovecot: lda(testuser28): Error: > Log > > synchronization error at seq=4,offset=3768 for > > /mnt/testuser28/mdbox/storage/dovecot.map.index: Append with UID 516, > but > > next_uid = 517 > > Mar 21 09:36:30 test-gluster-client2 dovecot: lda(testuser28): Error: > Log > > synchronization error at seq=4,offset=4220 for > > /mnt/testuser28/mdbox/storage/dovecot.map.index: Extension record update > > for invalid uid=517 > > Mar 21 09:36:30 test-gluster-client2 dovecot: lda(testuser28): Error: > Log > > synchronization error at seq=4,offset=5088 for > > /mnt/testuser28/mdbox/storage/dovecot.map.index: Extension record update > > for invalid uid=517 > > Mar 21 09:36:30 test-gluster-client2 dovecot: lda(testuser28): Warning: > > fscking index file /mnt/testuser28/mdbox/storage/dovecot.map.index > > Mar 21 09:36:30 test-gluster-client2 dovecot: lda(testuser34): Warning: > > fscking index file /mnt/testuser34/mdbox/storage/dovecot.map.index > > > > > > This is my dovecot config currently: > > > > jdevine@test-gluster-client2:~> dovecot -n > > # 2.0.13: /etc/dovecot/dovecot.conf > > # OS: Linux 3.0.0-13-server x86_64 Ubuntu 11.10 > > lock_method = dotlock > > mail_fsync = always > > mail_location = mdbox:~/mdbox > > mail_nfs_index = yes > > mail_nfs_storage = yes > > mmap_disable = yes > > passdb { > > driver = pam > > } > > protocols = " imap" > > ssl_cert = </etc/ssl/certs/dovecot.pem > > ssl_key = </etc/ssl/private/dovecot.pem > > userdb { > > driver = passwd > > } > > I was able to get dovecot working across a gluster cluster a few weeks ago > and it worked just fine. I would recommend using the native gluster mount > option (need to install gluster software on clients), and using distributed > replicated as your replication mechanism. If you're running two gluster > servers you should have a replica count of two with distributed replicated. > You should test first to make sure you can create a file in both mounts > and see it from every mount point in the cluster, as well as interact with > it. It's also very important to make sure your servers are running with > synchronized clocks from an NTP server. Very bad things happen to a > (dovecot or gluster) cluster out of sync with NTP. > > What storage method are you using? I'm able to produce errors within seconds of starting postal with more than one thread
