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...mail clients will automatically attempt to connect to the other IP if they cannot get to the first address. Unfortunately mail applications don?t really do this like web browsers do ? > > ~ Laz Peterson > Paravis, LLC > >> On Jul 20, 2015, at 10:29 AM, Chad M Stewart <cms at balius.com> wrote: >> >> >> I'm trying to determine which dovecot components to use and how to order them in the network path from client to mail store. >> >> >> If I have say 1,000 users, all stored in MySQL (or LDAP) and have 4 mail stores, configured into...

On Aug 12, 2015, at 11:04 AM, Andrzej A. Filip <andrzej.filip at gmail.com> wrote: > > <..snip..> > Could you provide the following info: > a) mailbox type (maildir/mbox/dbox/...) maildir > [mail_location in dovecot's config] /srv/mail/<domain>/<user-mailbox>/ > b) file system type (ext2/ext3/ext4/fat32/...) > [provided by "df -T"

I'm trying to determine which dovecot components to use and how to order them in the network path from client to mail store. If I have say 1,000 users, all stored in MySQL (or LDAP) and have 4 mail stores, configured into 2, 2 node pods. MS1 and MS2 are pod1 and are configured with replication (dsync) and host users 0-500. MS3 and MS4 are pod2 and are configured with replication between

...ithout using BGP or having control over the IP space (so, no anycast). Just a simple way to get the clients redirected to the other Dovecot server when I lose an entire datacenter network for whatever reason. ~ Laz Peterson Paravis, LLC > On Jul 20, 2015, at 5:32 PM, Chad M Stewart <cms at balius.com> wrote: > > > Round-robin DNS last I checked can be fraught with issues. > > While doing something else I came up with this idea: Clients --> Load Balancer(HAProxy) --> Dovecot Proxy(DP) --> Dovecot Director(DD) --> MS1 / MS2. > > > When DP checks...

...ving control over the IP space (so, no anycast). Just a simple way to get the clients redirected to the other Dovecot server when I lose an entire datacenter network for whatever reason. > > ~ Laz Peterson > Paravis, LLC > >> On Jul 20, 2015, at 5:32 PM, Chad M Stewart <cms at balius.com> wrote: >> >> >> Round-robin DNS last I checked can be fraught with issues. >> >> While doing something else I came up with this idea: Clients --> Load Balancer(HAProxy) --> Dovecot Proxy(DP) --> Dovecot Director(DD) --> MS1 / MS2. >> >>...

...ke round robin DNS that mail clients will automatically attempt to connect to the other IP if they cannot get to the first address. Unfortunately mail applications don?t really do this like web browsers do ? ~ Laz Peterson Paravis, LLC > On Jul 20, 2015, at 10:29 AM, Chad M Stewart <cms at balius.com> wrote: > > > I'm trying to determine which dovecot components to use and how to order them in the network path from client to mail store. > > > If I have say 1,000 users, all stored in MySQL (or LDAP) and have 4 mail stores, configured into 2, 2 node pods. > &g...

Chad M Stewart <cms at balius.com> wrote: > Dovecot 2.2.18 on CentOS 6 > > I have a pair of servers setup with MySQL, Postfix, and Dovecot. Replication is setup and working between the two dovecot instances. > > The problem I'm running into is that a single mailbox receives a lot > of messages, at tim...

Chad M Stewart <cms at balius.com> wrote: > On Aug 12, 2015, at 11:04 AM, Andrzej A. Filip <andrzej.filip at gmail.com> wrote: >> >> > > <..snip..> > >> Could you provide the following info: >> a) mailbox type (maildir/mbox/dbox/...) > > maildir > >> [mail_loca...

On Aug 14, 2015, at 1:01 PM, Andrzej A. Filip <andrzej.filip at gmail.com> wrote: > > > Are docecot and postfix located on the same server? > Can postfix access (deliver) directly maildir file directory dovecot uses? > For the moment yes they are on the same server. I designed it to be modular, the various components can be placed on different systems with no

Chad M Stewart <cms at balius.com> wrote: > On Aug 14, 2015, at 1:01 PM, Andrzej A. Filip <andrzej.filip at gmail.com> wrote: > >> >> >> Are docecot and postfix located on the same server? >> Can postfix access (deliver) directly maildir file directory dovecot uses? >> > > F...

Dovecot 2.2.18 on CentOS 6 I have a pair of servers setup with MySQL, Postfix, and Dovecot. Replication is setup and working between the two dovecot instances. The problem I'm running into is that a single mailbox receives a lot of messages, at times the rate is multiple messages per second. Delivery from Postfix to Dovecot is via tcp based LMTP. When I do 'ps -aef|grep lmtp|wc

...battlefield for nine days. > I have http://thanasis.com/achilles.htm Achilles ignored Hector's dying wish to have his body returned to his father Priam for ransom. Instead he fastened leather straps to the body of Hector, secured them on his chariot and whipping up his immortal horses Balius, Xanthus and Pedasus, dragged the corpse three times around the walls of Troy, much to the dismay of the devastated Trojans. -- O__ ---- Peter Dalgaard ?ster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University o...

The problem happened again this morning. Removing fsync calls helped, but I'm not sure about leaving that enabled long term. I still believe the problem is multiple dovecot processes trying to write to a single folder at the same time. (If I could run dtrace I might be able to cobble together a script to prove it.) I tried writing a sieve script to direct the messages to a set of folders,

On Aug 12, 2015, at 11:58 AM, Daniel Tr?der <troeder at univention.de> wrote: > On 08/12/2015 17:19, Chad M Stewart wrote: >> What I'm seeing is very high load on the system (40) and queues building on the Postfix side. > High load means, that there are a lot of processes waiting to run. The > most likely cause for this is not CPU consumption, but I/O wait. > >