On 10/10/18 7:26 AM, Aki Tuomi wrote:
>> Are you saying that there is a bug in this version that affects RHEL 7.5
>> but not RHEL 6 or just use the newest version and maybe the problem goes
>> away?
>
> We have very limited interest in figuring out problems with (very) old
> dovecot versions. At
The Courier IMAP backwards compatibility section in the Namespaces wiki
suggests that hidden aliased namespace can cause problems for some
clients but doesn't quantify the extent or likelihood of running into
these problems.
Does anyone with real world experience with similar configurations have
We've been running dovecot director setup using MAILDIR++ spools on NFS
served by 4 (aging) Netapp clustered filers and are considering
modernizing our storage. There's nothing particularly wrong with the
existing storage except the age, density and power consumption don't
compare well when
that are hard coded hopefully wont
trip up on themselves too bad.
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc.
System Architect 2260 Apollo Way
707.522.1000 Santa Rosa, CA 95407
helpful.
Same here. We use LVS with surealived and LUA scripting to do a
complete login/logout cycle as part of the health check. Even the
ancient Alteon's had similar functionality (and supported common
protocols like pop and imap out of the box.)
--
Kelsey Cummings - k...@corp.sonic.net
On 2013-05-03 19:13, Professa Dementia wrote:
When I specify that an email be
deleted from the server, I expect that it is *deleted*.
While I see the point you're trying to make, I don't think it is valid.
On our servers the deleted message could exist in filesystem snapshots,
disk-disk
On 2013-05-03 09:14, Timo Sirainen wrote:
GMail doesn't delete mails when POP3 client issues a DELE command for
it. Instead they just become invisible for future POP3 sessions, but
they still exist for IMAP/webmail. The same could be implemented
pretty easily for Dovecot:
How does the usage
On 2013-05-03 15:44, Timo Sirainen wrote:
I didn't ask what their main reason for this was, but for me it would
be: Oops, I accidentally configured my new email client as POP3
instead of IMAP, and now it deleted everything from my INBOX. With
lazy_expunge the user would have to explicitly go and
On 4/24/2013 12:05 PM, Kelsey Cummings wrote:
before or if they had tried and failed. Perhaps a hidden namespace with
folders linked to the real special folders or might that have unintended
consequences?
This seems to kinda work with the only oddity being that the ios client,
if not manually
On 2013-04-24 10:54, Robert Schetterer wrote:
Apple has a long history with bugs on imap, they are focused in using
their own services, so they might never fix outside stuff, but however
why not ask Apple for help, you paid a lot to them
I've never paid them a dime to them in my life but I
On 03/12/13 06:58, Axel Luttgens wrote:
started for seemingly unrelated reasons, but ended with some form of cacheing
of the results fetched with gethostbyname().
It is a bit odd that it would totally block unless DNS requests on your
hosts weren't working at all - and even then, the requests
.
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc.
System Architect 2260 Apollo Way
707.522.1000 Santa Rosa, CA 95407
On Fri, Nov 23, 2012 at 08:36:37AM +0200, Timo Sirainen wrote:
On 9.11.2012, at 2.49, Kelsey Cummings wrote:
One of our dovecot backend servers ran into a problem with it's auth
process a few days ago. This doesn't appear to be the error logged when
dovecot hits its internal limit so I'm
servers are/were handling virtually
identical load with the same service uptime and haven't had any issues
so far. (Crash happened 7 days ago.)
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc.
System Architect 2260 Apollo Way
707.522.1000
On Mon, Oct 22, 2012 at 03:39:34PM +0300, Timo Sirainen wrote:
On 26.9.2012, at 21.06, Kelsey Cummings wrote:
09:25:21 .. User X host lookup failed: Timeout - queued for 30 secs (Ring
synced for 5032 secs)
09:25:55 .. User X host lookup failed: Timeout - queued for 30 secs (Ring
messages?
I figured this was a probably a regression in the RHEL6.3 (Sl6.3)
(2.6.32-279.9.1.el6.x86_64) kernel. What are you running Cor?
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc.
System Architect 2260 Apollo Way
707.522.1000
Timo - I upgraded to 2.1.10 on our director servers two nights ago and
apart from errors associated with the directors processes restarting
everything looked great for ~24 hours until I failed our the real
servers last night to update the nfs mount options for the spools.
I followed the
On Wed, Sep 26, 2012 at 08:57:58PM +0300, Timo Sirainen wrote:
On 26.9.2012, at 20.34, Kelsey Cummings wrote:
The following errors on the directors that started after this went
unnoticed until this AM.
director: User bb host lookup failed: Timeout - queued for 30 secs (Ring
synced
On 09/26/12 11:06, Kelsey Cummings wrote:
No, there continued to be a mix of both. The pattern seems to look like
this. I'll run some stats later but it looks like a pretty significant
number of users where affected.
Timo, it looks like the total number of affected users was only about
250
We are seeing a few (0-15) proxy failures like the following out of ~3m
successful proxied connections a day. Average session creation load over
our peak hour is about 47/sec. The backend servers aren't logging
anything that would suggest any internal problem like insufficient
processes to
On 06/02/12 17:10, Daniel Parthey wrote:
Patrick Ben Koetter wrote:
following our discussion on dovecot stats at the LinuxTag 2012 my team and I
sat down and put together a list of stat items we think to be useful in daily
dovecot usage.
Besides pulling together all the data we also think it
On 09/03/12 12:06, Timo Sirainen wrote:
On 3.9.2012, at 21.26, Kelsey Cummings wrote:
I've had 2x director ring up and running with production load on 2.1.8 with
around 10,000 active connections for two weeks and everything has been working
great - until this morning.
There isn't anything
On 9/4/2012 5:58 PM, Timo Sirainen wrote:
On 3.9.2012, at 21.26, Kelsey Cummings wrote:
passdb {
args = proxy=y nopassword=y
driver = static
}
I wonder if someone was doing a ton of logins for different usernames? This
kind of setup where director doesn't verify the username can
to do with the OS
or the network is really having some issues.
I can't rule that out but there are not any signs that there are any
hardware, OS or network related issues.
Thanks for gettting the ring status into doveadm by the way. At least
our monitoring caught this quickly.
--
Kelsey
On 6/22/2012 6:34 AM, Timo Sirainen wrote:
Which Dovecot version? I thought I fixed this already..
I'm seeing these errors running 2.1.8
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc.
System Architect 2260 Apollo Way
707.522.1000
On 8/25/2012 12:14 PM, Kelsey Cummings wrote:
On 6/22/2012 6:34 AM, Timo Sirainen wrote:
Which Dovecot version? I thought I fixed this already..
I'm seeing these errors running 2.1.8
Examples below, let me know if I can provide any other info Timo.
In other news, we're finally migrated
On 06/28/12 05:56, Ed W wrote:
So given the statistics show us that 2 disk failures are much more
common than we expect, and that silent corruption is likely occurring
within (larger) real world file stores, there really aren't many battle
tested options that can protect against this - really
this is happening?
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc.
System Architect 2260 Apollo Way
707.522.1000 Santa Rosa, CA 95407
the lost message from Trash to the Inbox where it would
be fetched by their client again.
Has anyone already done this? Should this be possible via a plugin?
I see the deleted-to-trash imap plugin. We are using Maildir if it
makes a difference.
--
Kelsey Cummings - k...@corp.sonic.net
On 04/06/12 16:40, Kelsey Cummings wrote:
Has anyone already done this? Should this be possible via a plugin?
I see the deleted-to-trash imap plugin. We are using Maildir if it
makes a difference.
Of course, this is exactly what the Lazy Expunge plugin does, isn't it?
-K
On 03/16/12 06:07, Timo Sirainen wrote:
Maildir isn't very good for POP3, especially if the POP3 clients delete the
mails after download. With Dovecot you could look into switching to multi-dbox
format, which would have much better performance.
Timo, can you explain why Maildir isn't a good
On 03/16/12 08:30, Ed W wrote:
2) Extremely racey, but if you were on maildir you could use some kind
of pre-login scripting to kick off a scan on login. Touch some lock file
so that you can tell when last scanned and only scan if the definitions
have been updated since you last scanned?
I
On 03/16/12 10:54, Timo Sirainen wrote:
Another thing our existing POP3 servers did was batch all of the deletes until
after the +OK... was returned from quit. This doesn't reduce server load but
has the impression of creating faster response times to the clients.
You mean deleting the
the MXs to message retreval to snag a few more virues with updated
definitions before they reach customers.
Anyone doing anything similar?
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc.
System Architect 2260 Apollo Way
707.522.1000
On 03/05/12 17:33, Kelsey Cummings wrote:
I have a setup where I need to use a Master User account to login on
behalf of users normally authed via PAM. Is there any existing mechanism
that will allow master users to be wired down to specific ip address rather
Ah, found it.
http://wiki2
? It would be totally acceptable to be able to say that master
logins were only valid from a specific list of hosts rather than wiring
specific master users to specific hosts.
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc.
System Architect 2260 Apollo Way
with large files ( 2GB), but
for E-Mail i'd stick with ext3 (or maybe even reiser3)
as it works very well with small files.
XFS was designed for parallelism, whether with large files or small,
...
Anyone been using ZFS on FreeBSD for mail spool storage?
--
Kelsey Cummings - k...@corp.sonic.net
On Fri, Aug 05, 2011 at 11:12:03AM +0200, Jan-Frode Myklebust wrote:
On Thu, Jun 02, 2011 at 12:29:10PM -0700, Kelsey Cummings wrote:
I'm using a hacked up version of poolmon. The only important changes
are that it actually logs into the real server rather than just making a
connection
to Timo for fixing
this difficult problem.
That is always good to hear!
I'd be a lot happier if I was able to monitor the directors and make
sure that they were connected and correctly synced with eachother - even
as a protection from human error rather than anticipated software failure.
--
Kelsey
having to run agents on the dovecot
servers to get the info into some other transport like SNMP.
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc.
System Architect 2260 Apollo Way
707.522.1000 Santa Rosa, CA 95407
threshold, to assume that the director is otherwise able to
do its job and rely on external monitoring to pickup internal failures
where dovecot isn't able to successfully proxy the connection to one of
the real servers.
So, how are people doing this in the real world?
--
Kelsey Cummings - k
out the Right place to add it since client-user doesn't seem to
be available in client-common.c: get_var_expand_table(..). Perhaps I'm
missing something obvious?
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc.
System Architect 2260 Apollo Way
707.522.1000
On Fri, Jan 21, 2011 at 08:00:08PM +0200, Timo Sirainen wrote:
On Fri, 2011-01-21 at 19:59 +0200, Timo Sirainen wrote:
I can take a look at it, but it would help if you were able to reproduce
the problem.
More clearly: Reliably reproduce this in a test setup :)
Timo Cor, did you guys
for thunderbird.
That said, is anyone running any of the fts plugins in a large scale
environment? If so, what kind of scaling issues do you see? How do the
search servers compare hardware wise to users count/spool size?
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc.
System Architect
On Mon, May 03, 2010 at 05:33:12PM -0700, Kelsey Cummings wrote:
But I'm still curious for any tips or pointers on the other issue
w/regards adding an exterior maildir into a user's namespace.
Anyone? (I'll freely admit to missing something obvious...)
I'd rather not accomplish
altogether:
doveconf: Fatal: Error in configuration file
/opt/dovecot-test/etc/dovecot/conf.d/imap.conf line 7: Unknown setting:
executable
Similarly, it also suggests 'drop_priv_before_exec = no' which doesn't
appear to be valid either.
--
Kelsey Cummings - k...@corp.sonic.net sonic.net, inc
On Mon, May 03, 2010 at 03:25:48PM -0700, Kelsey Cummings wrote:
I'm trying to use an external program to set the location of user's
maildirs to match an existing hashing schema but the docs for how to do
this in 1.x do not seem to apply to 2.0 or I'm misinterpreting them.
...
I've confirmed
On Tue, May 04, 2010 at 03:41:04AM +0300, Timo Sirainen wrote:
On 4.5.2010, at 1.25, Kelsey Cummings wrote:
I'm trying to use an external program to set the location of user's
maildirs to match an existing hashing schema but the docs for how to do
this in 1.x do not seem to apply to 2.0
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