similar to: sql dict: commit failed: MySQL server has gone away

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, 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

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 there, I'm using dovecot 2.0.16 with a mysql user database. From time to time when we have a big influx of messages (perhaps more than 30 concurrent rcpt to:<> sessions at the same time so no auth-workers free?) or when we have a transient issue connecting to the database server, we see the message: Jan 25 16:38:23 mailbox dovecot: auth-worker: sql(foo at bar.com,1.2.3.4):

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

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

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 there, We're trying to convert users from Maildir to sdbox at present; I'm using dsync to achieve this (2.0.16) however when the user's have been converted we only get minimal information in the caching files. Is there some way to preserve all the caching decisions that were previously made so that when the user logs in to the new mailbox we don't have to cause an io storm

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

Hi there, I'm running Dovecot 2.0.16 just set up the director with cut&paste from the wiki. It's working & running fine for pop/imap connections (as verified by doveadm director status user), however when I specify 'RCPT TO' for a (tcp) lmtp connection straight away I get: 451 4.3.0 <xxx at yyy.com> Temporary user lookup failure and in the logs:

Hi all, This is just an idea I had over the weekend; I was wondering if instead of storing the indexes/caches on disk, it would be possible to have an option to store them in a remote database (eg mysql). There are several issues that we currently have with scaling dovecot, and I think that if it could store indexes in an external database we could alleviate most of these issues. In no particular

Hi there, I was doing some testing on sdbox yesterday. Basically I did the following procedure: 1) Create new sdbox; deliver 2 messages into it (u.1, u.2) 2) Create a copy of the index file (no cache file created yet) 3) deliver another message to the mailbox (u.3) 4) copy back index file from stage (2) 5) deliver new mail Then the message delivered in stage 3 ie u.3 gets replaced with the

Hi there, I've just been experimenting with the latest courier-dovecot-migrate.pl script and I notice that it favours keeping pop3 UIDL ordering rather than IMAP UID preservation. There is this comment (line 312): # POP3 clients may want to get POP3 UIDLs in the same order always. # Preserve the order even if it causes IMAP UIDs to change. Does anyone have details as to which

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, I'm in the process of upgrading from dovecot v1.1 to dovecot 2. We fetch uid/gid user information from a database and also use post-login scripting with mail_drop_priv_before_exec = yes which means the postlogin script is executed with the permissions of the user we have found in the database. According to the dovecot2 wiki page, to get this behaviour in version 2 we have to set the

Hi all, I'm currently changing some systems to use the redirector service, which means that to get local deliveries going I need to get lmtp set up so it can be redirected as well. This is working fine, however we have a number of different ports running on our servers depending on which brand a customer is using. When the time comes to do the user look up, we use (port, user, domain) to