similar to: Dovecot cluster using GlusterFS

We ran a load test using glusterfs and were able to deliver mail (I can't remember specifically how much per second, maybe 100 messages per second?) without any issues. We did use the glusterfs fuse client and not nfs, and used regular maildir. We developed a mail bot cluster that would deliver mail, and simultaneously receive and delete it with pop and IMAP and we ran into zero issues. We

Hello Alessio and Gordon, thank you for answers. Dsync-based architecture looks promising, but I would preffer to stay with GlusterFS for now as I also use it as a storage for other components. So director is the way to go, I don't want to setup more than two nodes to keep this setup as simple as possible - so I will probably update to 2.2.19 and have director and backend on the same servers

Il 05.12.2015 10:42 Filip Pytloun ha scritto: > Hello, > > I have recently setup mailserver solution using 2-node master-master > setup (mainly based on MySQL M-M replication and GlusterFS with 2 > replica volume) on Ubuntu 14.04 (Dovecot 2.2.9). > > Unfortunately even with shared-storage-aware setting: > > mail_nfs_index = yes > mail_nfs_storage = yes >

Dear gluster experts, I want to ask a question about how to monitor active mounted client for glusterfs. Since I want to known how many clients mount a volume and I also want to known the clients hostname/ip. I walk through the glusterfs admin guide and don't know how. Any one helps? -- Yongtao Fu -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi everyone, short version: Is there no built in failover mechanism for the director service to handle a backend failure? Long version: I have a frontend server running the director service and two backends. Due to maintenance I had to shut down one of the backends which caused connection errors for the users being directed to this backend. I was very surprised as I expected the director to

Hi, First, my version: [root at centos1 conf.d]# dovecot --version 2.2.15 [root at centos1 conf.d]# I have already configured dovecot that way (on one single VM, so everythinh is stored on the same machine) - A post fix server sending out to LMTP - LMTP is the dovecot LMTP server, configured with "lmtp-proxy= no", - LMTP checks the users receiving

On Thu, Feb 23, 2017 at 3:45 PM, Zhang Huangbin <zhb at iredmail.org> wrote: > > > On Feb 24, 2017, at 6:08 AM, Mark Moseley <moseleymark at gmail.com> wrote: > > > > * Do you use the perl poolmon script or something else? The perl script > was > > being weird for me, so I rewrote it in python but it basically does the > > exact same things. >

Hello, I have discovered a strange behaviour with director proxying... I have a user, its assigned server is 155.54.211.164. The problem is that I don't know why director sent him yesterday to a different server, because my server was up all the time. Moreover, I'm using poolmon in director servers to check availability of final servers and it didn't report any problem with the

As someone who is about to begin the process of moving from maildir to mdbox on NFS (and therefore just about to start the 'director-ization' of everything) for ~6.5m mailboxes, I'm curious if anyone can share any experiences with it. The list is surprisingly quiet about this subject, and articles on google are mainly just about setting director up. I've yet to stumble across an

Hello list, I built an email system using a proxy / director pair (IMAP, POP3, LMTP) and a backend pair. To have an HA system, I would like to understand if it is better to use an NFS export or replication to save emails and index files NFS is provided by a NAS (in HA), while for replication I would use the local backend disks Which of the two systems is more reliable? Are there any drawbacks

I'm working the kinks of a new director based setup for the eventual migration away from courier. At this point, with everything basically working I'm trying to ensure that things are properly monitored and I've run into an issue. There doesn't appear to be a way to get dovecot to tell if it is (or is not) connected and properly synced with the other director servers in the ring

Hi I have two server directors in ring and 5 dovecot servers (2.2.36) IP for IMAP and POP3 is a VIP (keepalived) What is the best solutions to get realy HA for 5 dovecot servers ? Maby corosync+pacemeker ? But this solution is too problematic and hardcore Why I need HA ? Doveadmin is too lazy and doveadm director does not know that one machine broke down and still sends traffic

Hi, I did some experiments with dovecot on a glusterfs on the active nodes without a director. So I had concurrent access to the files. With the help of the available documentation about NFS and fcntl locks I managed to find out the following: With the plain mbox format dovecot seems to apply and to honor the fcntl locks. But since this format is not used any more in real setups, it is

Hi My servers are Ubuntu 14.04 and I'm needing to make a Upstart script for Poolmon. Does someone already made this and could to share with us ? Thanks! -- Thiago henrique

In data marted? 11 settembre 2018 10:46:30 CEST, Timo Sirainen ha scritto: > On 11 Sep 2018, at 10.57, Simone Lazzaris <s.lazzaris at interactive.eu> wrote: > > Sep 11 03:25:55 imap-front4 dovecot: director: Panic: file > > doveadm-connection.c: line 1097 (doveadm_connection_deinit): assertion > > failed: (conn->to_ring_sync_abort == NULL) Sep 11 03:25:55 imap-front4

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"

In data venerd? 7 settembre 2018 10:06:00 CEST, Sami Ketola ha scritto: > > On 7 Sep 2018, at 11.00, Simone Lazzaris <s.lazzaris at interactive.eu> > > wrote: > > > > > > The only suspect thing is this: > > > > Sep 6 14:45:41 imap-front13 dovecot: director: doveadm: Host > > 192.168.1.142 > > vhost count changed from 100 to 0 >

We have a Dovecot installation of several nodes that share an NFS mount for the user data. We are trying to configure Dovecot Proxy with Director in order to have Director select the appropriate IMAP server for a given user on behave of Dovecot Proxy. So far all examples I've seen on the dovecot site require the proxy to know the exact mail server to pass the user to by way of an LDAP

Thank you all for replies!!! Some missing infos... - As load balancer I'm using a pair of keepalived with simple setup and not the DNS - Load balancer algorithm is "Weighted Least-Connection" - About 20 domains and 3000 email - I'm monitoring my backend servers with poolmon - The backend servers are virtual machine (vmware) with datastore on "all flash" storage based

Hello, Has anyone used GlusterFS as storage file system for dovecot or any other email system..? It says that it can be presented as a NFS, CIFS and as GlusterFS using the native client, technically using the client would allow the machine to read and write to it, therefore, I think that Dovecot would not care about it. Correct? Anyone out there used this setup?? Thanks.