similar to: RFC: Storing indexes in a (remote) database to increase dovecot scalability

Hi, we're running dovecot 1.1.2 (centos5 32-bit rpm from atrpms) havn't had any real issues with it, but today it looks like an index has become badly corrupted. We're seeing this in the logs every time we log in to a particular account: 2008-09-10T11:56:07+01:00 mail8 dovecot: Panic: IMAP(xxx): Trying to allocate 2273345672 bytes 2008-09-10T11:56:07+01:00 mail8 dovecot: IMAP(xxx):

Hi there, I've been seeing this error in our logs quite frequently on our nfs storage (v3): 2008-11-10T13:24:26+00:00 mail8 dovecot: IMAP(XXX at YYY.com): nfs_flush_fcntl: fcntl(/var/spool/mail/XXX/Maildir/dovecot.index.cache, F_RDLCK) failed: No locks available Which is because we don't run lockd on our servers. Why is dovecot trying to use fcntl() ? I explicitly set it to use dotlocks

Hi there, I run a system that has a lot of virtual users. We invoke deliver from exim and pass the directory to deliver into using the HOME environment variable, so deliver doesn't do any database lookups during the delivery process. The exim pipe environment is described at http://exim.org/exim-html-current/doc/html/spec_html/index.html#toc0239, but basically I'd like to know the domain

Hi all, Lets say I have a maildir which doesn't contain any dovecot files but has some emails lying around in it. If I add a message to this mailbox using deliver, dovecot creates the uidlist file with a single entry (the message that was just delivered). When I then log in to the mailbox, all the other messages are added into the uidlist file in the normal order (directory list order I

Hi all, We updated to 1.1.7 a week or two back from 1.1.6 (both standard atrpms builds). Since doing so, twice now I've seen the imap services accept connections but they hang before the banner is printed (pop seems to be unaffected). I see this in the logs: Dec 23 14:02:15 mail9 dovecot: pipe() failed: Too many open files Dec 23 14:02:15 mail9 dovecot: Temporary failure in creating login

Hi guys, Anyone know what this error with deliver is (v1.1.1)? 2008-07-03T09:45:19+01:00 mail4 deliver(alexander): Panic: file mail-index-transaction.c: line 642 (mail_index_transaction_lookup): assertion failed: (seq >= t->first_new_seq && seq <= t->last_new_seq) Seen a few of these this morning. Mark -- Mark Zealey -- Shared Hosting Team Leader Product Development *

Hi guys, It would be really nice if there were an easy way to see how much space an individual imap account used when a user logged out; something like pop3_logout_format = size=%s. I appreciate that this isn't so easy in imap though - I was thinking of using the quota plugin with no limit or something like that. Mark -- Mark Zealey -- Shared Hosting Team Leader Product Development *

Hi all, We need to set our filestore to read-only for quite a while, and I want to mitigate the effects for our clients. First issue; dovecot. If we just change the nfs mounts to read-only, dovecot complains: 2009-02-19T14:03:19+00:00 mail2 dovecot: pop3-login: Login: user=<test2 at markandruth.co.uk>, method=PLAIN, rip=10.15.10.95, lip=10.15.10.102:11002 2009-02-19T14:03:19+00:00 mail2

Following on from this thread: http://www.dovecot.org/list/dovecot/2010-September/052704.html <https://owa2010.webfusion.com/owa/redir.aspx?C=a447887e3d204944a8c766142df41453&URL=http%3a%2f%2fwww.dovecot.org%2flist%2fdovecot%2f2010-September%2f052704.html> in 2.0.16 I am seeing the same issues. I believe this would be related to some timeouts set on our mysql servers which are pretty

Hi all, I''ve had a lot of fun over the last couple of days integrating Ferret with my Rails app. Many thanks to Dave Balmain for writing this. Everything seems to work well and my site now has full search capabilities. But I''m wondering how I can scale my site now? What would be the recommended approach in terms of sharing indexes across multiple servers? Is the

Hello All, We are struggling to find a solution to a problem we are encountering with a load-balanced email setup. Currently, we have a Coyote loadbalancer, and 3 Postfix/Dovecot nodes that then get their information from a mysql database. The problem is that after a couple weeks, we start seeing NFS locking issues occur, which then takes email completely down, requiring a site visit to

Hello. I would like to ask about having mysql data hosted on glusterfs. Please see my issue below. I have posted DEBUG log information on pastebin. I am using GlusterFS version: glusterfs 1.4.0rc7 FUSE Version :fuse-2.7.3glfs10 my ISSUE is: When hosting mysql data on glusterfs I have an issue: The first time I start the glusterfsd server using [root at mohan ~]#

Dear All, I'm having an intermittent problem, with dovecot slowing to a crawl. Restarting dovecot fixes the problem. Looking at the maillog, I see loads of these errors.... dovecot: pipe() failed: Too many open files dovecot: Temporary failure in creating login processes, slowing down for now dovecot: Created login processes successfully, unstalling looking at the processes, I can see

My existing pop3/imap environment is courier imap + vpopmail + qmail with MySQL backend. I'm looking at migrating this to Dovecot. Currently I have multiple instances of Courier bound to different loopback IPs (the IPs correspond with the virtual IPs on a server load balancer). When a user authenticates they don't have to specify a domain - if they don't, Courier will use a

Hi, I''ve tried running the mysql daemon on a few different servers running Xen, and seen two different sorts of problems. In one case, on two identically configured systems, the mysql daemon segv''s but restarts immediately. This happened with Xen 2.0.5, I haven''t yet seen it with 2.0.6. It seems to be the same problem as this one:

Hi, About a week ago I upgraded our reasonably heavily loaded mail servers from a pretty recent courier version to dovecot-1.1rc10. IMAP performance on dovecot is amazing, however POP3 performance is worse than courier :-( I have uploaded some munin graphs taken today to http://linweb.atlas.pipex.net/dovecot/; the dovecot server is handling about 2000 pop logins/sec and 300 imap sessions (but

I''m currently using Perl, Class::DBI, Template Toolkit on top of Mysql and I''m about to try my hand at a first Rails app. The power of Rails and Ruby has me very intrigued... The O-R mapping in Class::DBI seems to be covered by AR, so I''m hoping it is a workable proposition. I plan to build a simple test case to get up to speed before converting a large production

Hi, yesterday there was obviously a problem in one virtual server. Host centos uname -rm: 2.6.18-128.1.6.el5 x86_64 Guest: centos uname -rm: 2.6.18-128.4.1.el5 x86_64 Vmware server : VMware-server-2.0.1-156745.x86_64.rpm Logwatch in guest: --------------------- Kernel Begin ------------------------ WARNING: Kernel Errors Present [<ffffffff8005dde9>]

Hi, i''ve a big problem in a xenU (256M RAM, 2.6.11.12-xenU, in 3 LVM partition (/, swap and /home) This xenU freeze and crash with this messages in syslog. This xenU work very fine since 2005 september. Is it serious ? What could be the solution ? Regards Franck ############ SYSLOG ...................... Jun 18 08:45:21 lemodev kernel: oom-killer: gfp_mask=0x1d2 Jun 18 08:45:21

This is something I figured out a few months ago, mainly because this one guy at work (hi, Stu) kept telling me my multi-master replication plan sucked and we should use some existing scalable database. (I guess it didn't go exactly like that, but that's the result anyway.) So, my current plan is based on a couple of observations: * Index files are really more like memory dumps.