Check out this latest thread (New Build Issues) on the devel list:
http://news.gmane.org/gmane.mail.qmail.toaster.devel
We haven't determined recommended settings for dovecot on large hosts yet.
EricB pointed out these links:
http://wiki2.dovecot.org/LoginProcess
http://wiki2.dovecot.org/Services
I suspect that you're running up against the default_process_limit.
Please let us know what you end up using for any settings you change.
P.S. <rant on swap> I realize disk is cheap, but you've got way more
swap than you need. The old rule of thumb of "swap should be 2x ram"
isn't applicable to servers, especially these days. I usually use 256M
or 512M for swap on a server. Also, it's much easier to manage swap
using files instead of partitions. Not worth changing existing hosts,
but something to keep in mind on new builds.
</rant>
On 03/17/2014 11:36 PM, Linux wrote:
I am facing the same issue with TB. Its working fine on android phones and
webmail.
1. [root@webmail ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol01
1.8T 368G 1.3T 22% /
/dev/md0 190M 24M 157M 14% /boot
tmpfs 3.8G 0 3.8G 0% /dev/shm
2. [root@webmail ~]# free
total used free shared buffers cached
Mem: 7760288 7478480 281808 0 536948 5058064
-/+ buffers/cache: 1883468 5876820
Swap: 16777208 108 16777100
3. [root@webmail ~]# uptime
12:04:46 up 5 days, 18:26, 1 user, load average: 1.21, 1.15, 1.02
4. [root@webmail ~]# ps -eF | grep dovecot | sort
dovecot 27243 27242 0 3203 988 0 11:59 ? 00:00:00
dovecot/anvil
dovecot 27249 27242 0 18251 2992 0 11:59 ? 00:00:00 dovecot/auth
dovenull 27248 27242 0 10740 2332 0 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27258 27242 0 10740 2336 1 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27260 27242 0 10740 2332 0 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27261 27242 0 10740 2332 3 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27262 27242 0 10740 2332 1 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27265 27242 0 10740 2336 0 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27270 27242 0 10740 2336 2 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27271 27242 0 10740 2336 1 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27289 27242 0 10740 2336 1 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27290 27242 0 10740 2336 0 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27291 27242 0 10740 2336 2 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27294 27242 0 10740 2340 0 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27296 27242 0 10740 2332 1 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27298 27242 0 10741 2332 2 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27329 27242 0 10740 2332 0 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27338 27242 0 10741 2332 2 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27355 27242 0 10741 2336 2 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27357 27242 0 10741 2336 0 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27359 27242 0 10741 2332 2 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27361 27242 0 10741 2336 1 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27364 27242 0 10740 2332 0 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27366 27242 0 10741 2332 2 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27367 27242 0 10741 2344 1 11:59 ? 00:00:00
dovecot/imap-login
dovenull 27407 27242 0 10741 2340 2 11:59 ? 00:00:02
dovecot/imap-login
dovenull 27527 27242 0 10741 2332 3 12:00 ? 00:00:00
dovecot/imap-login
dovenull 27583 27242 0 10741 2332 1 12:00 ? 00:00:00
dovecot/imap-login
dovenull 27607 27242 0 10740 2332 0 12:00 ? 00:00:00
dovecot/imap-login
dovenull 27677 27242 0 10741 2336 3 12:01 ? 00:00:00
dovecot/imap-login
dovenull 27985 27242 0 10740 2336 2 12:01 ? 00:00:00
dovecot/imap-login
dovenull 28099 27242 0 10741 2332 2 12:01 ? 00:00:00
dovecot/imap-login
dovenull 28158 27242 0 10741 2336 2 12:01 ? 00:00:00
dovecot/imap-login
dovenull 28245 27242 0 10741 2336 2 12:01 ? 00:00:00
dovecot/imap-login
dovenull 28251 27242 0 10741 2332 1 12:02 ? 00:00:00
dovecot/imap-login
dovenull 28262 27242 0 10741 2332 2 12:02 ? 00:00:00
dovecot/imap-login
dovenull 28263 27242 0 10708 2224 1 12:02 ? 00:00:00
dovecot/imap-login
dovenull 28268 27242 0 10741 2336 2 12:02 ? 00:00:00
dovecot/imap-login
dovenull 28270 27242 0 10741 2328 0 12:02 ? 00:00:00
dovecot/imap-login
dovenull 28273 27242 0 10741 2332 3 12:02 ? 00:00:00
dovecot/imap-login
dovenull 28278 27242 0 10741 2328 1 12:02 ? 00:00:00
dovecot/imap-login
dovenull 28324 27242 0 10741 2336 1 12:02 ? 00:00:00
dovecot/imap-login
dovenull 28327 27242 0 10740 2336 1 12:02 ? 00:00:00
dovecot/imap-login
dovenull 28342 27242 0 10741 2336 2 12:02 ? 00:00:00
dovecot/imap-login
dovenull 28415 27242 0 10741 2332 2 12:03 ? 00:00:00
dovecot/imap-login
dovenull 28416 27242 0 10740 2332 1 12:03 ? 00:00:00
dovecot/imap-login
dovenull 28427 27242 0 10741 2336 2 12:04 ? 00:00:00
dovecot/imap-login
dovenull 28429 27242 0 10740 2336 2 12:04 ? 00:00:00
dovecot/imap-login
dovenull 28431 27242 0 10741 2324 1 12:04 ? 00:00:00
dovecot/imap-login
dovenull 28458 27242 0 10708 2224 2 12:04 ? 00:00:00
dovecot/imap-login
dovenull 28484 27242 0 10741 2336 3 12:04 ? 00:00:00
dovecot/imap-login
dovenull 28486 27242 0 10741 2300 1 12:04 ? 00:00:00
dovecot/imap-login
dovenull 28487 27242 0 10741 2332 3 12:04 ? 00:00:00
dovecot/imap-login
dovenull 28488 27242 0 10741 2336 0 12:04 ? 00:00:00
dovecot/imap-login
dovenull 28490 27242 0 10741 2332 2 12:04 ? 00:00:00
dovecot/imap-login
root 27242 1 0 4222 664 0 11:59 ? 00:00:00
/usr/sbin/dovecot
root 27245 27242 0 3202 988 2 11:59 ? 00:00:00 dovecot/log
root 27247 27242 0 4240 3028 0 11:59 ? 00:00:00
dovecot/config
root 27250 27242 0 10105 1184 2 11:59 ? 00:00:00
dovecot/ssl-params
root 27252 27242 0 18227 2896 0 11:59 ? 00:00:00 dovecot/auth
-w
root 27457 27242 0 18227 2888 1 12:00 ? 00:00:00 dovecot/auth
-w
root 28494 22270 0 15301 768 2 12:04 pts/1 00:00:00 grep dovecot
vpopmail 27254 27242 0 4768 3852 2 11:59 ? 00:00:00 dovecot/imap
vpopmail 27259 27242 0 4007 1572 0 11:59 ? 00:00:00 dovecot/imap
vpopmail 27263 27242 0 4010 1652 1 11:59 ? 00:00:00 dovecot/imap
vpopmail 27264 27242 0 4072 1900 1 11:59 ? 00:00:00 dovecot/imap
vpopmail 27267 27242 0 4009 1588 3 11:59 ? 00:00:00 dovecot/imap
vpopmail 27268 27242 0 4188 2144 0 11:59 ? 00:00:00 dovecot/imap
vpopmail 27274 27242 0 4005 1628 1 11:59 ? 00:00:00 dovecot/imap
vpopmail 27278 27242 0 4299 2940 2 11:59 ? 00:00:00 dovecot/imap
vpopmail 27295 27242 0 4132 2268 2 11:59 ? 00:00:00 dovecot/imap
vpopmail 27297 27242 0 5711 3032 3 11:59 ? 00:00:00 dovecot/imap
vpopmail 27299 27242 0 4007 1632 0 11:59 ? 00:00:00 dovecot/imap
vpopmail 27301 27242 0 4008 1660 1 11:59 ? 00:00:00 dovecot/imap
vpopmail 27309 27242 0 4474 3764 2 11:59 ? 00:00:00 dovecot/imap
vpopmail 27336 27242 0 4014 1732 1 11:59 ? 00:00:00 dovecot/imap
vpopmail 27337 27242 0 4007 1636 0 11:59 ? 00:00:00 dovecot/imap
vpopmail 27341 27242 0 4026 1936 1 11:59 ? 00:00:00 dovecot/imap
vpopmail 27356 27242 0 4186 2568 2 11:59 ? 00:00:00 dovecot/imap
vpopmail 27358 27242 0 4235 2364 1 11:59 ? 00:00:00 dovecot/imap
vpopmail 27360 27242 0 4049 1956 3 11:59 ? 00:00:00 dovecot/imap
vpopmail 27362 27242 0 4301 2528 0 11:59 ? 00:00:00 dovecot/imap
vpopmail 27365 27242 0 4013 1660 3 11:59 ? 00:00:00 dovecot/imap
vpopmail 27368 27242 0 4113 2504 2 11:59 ? 00:00:00 dovecot/imap
vpopmail 27402 27242 0 6727 5128 2 11:59 ? 00:00:00 dovecot/imap
vpopmail 27408 27242 0 4171 2160 2 11:59 ? 00:00:00 dovecot/imap
vpopmail 27528 27242 0 4032 1804 2 12:00 ? 00:00:00 dovecot/imap
vpopmail 27594 27242 0 4085 2040 0 12:00 ? 00:00:00 dovecot/imap
vpopmail 27608 27242 0 4142 2156 2 12:00 ? 00:00:00 dovecot/imap
vpopmail 27727 27242 0 4149 2520 2 12:01 ? 00:00:00 dovecot/imap
vpopmail 27992 27242 0 4010 1640 0 12:01 ? 00:00:00 dovecot/imap
vpopmail 28133 27242 0 4163 2328 0 12:01 ? 00:00:00 dovecot/imap
vpopmail 28161 27242 0 4007 1624 0 12:01 ? 00:00:00 dovecot/imap
vpopmail 28246 27242 0 5754 4244 3 12:01 ? 00:00:00 dovecot/imap
vpopmail 28255 27242 0 4155 2208 2 12:02 ? 00:00:00 dovecot/imap
vpopmail 28265 27242 0 4689 4272 3 12:02 ? 00:00:00 dovecot/imap
vpopmail 28269 27242 0 4021 1904 0 12:02 ? 00:00:00 dovecot/imap
vpopmail 28271 27242 0 4022 1936 2 12:02 ? 00:00:00 dovecot/imap
vpopmail 28275 27242 0 4078 1900 3 12:02 ? 00:00:00 dovecot/imap
vpopmail 28280 27242 0 5519 7096 2 12:02 ? 00:00:00 dovecot/imap
vpopmail 28325 27242 0 4038 1680 1 12:02 ? 00:00:00 dovecot/imap
vpopmail 28330 27242 0 4011 1660 0 12:02 ? 00:00:00 dovecot/imap
vpopmail 28345 27242 0 4026 1752 1 12:02 ? 00:00:00 dovecot/imap
vpopmail 28417 27242 0 4005 1628 2 12:03 ? 00:00:00 dovecot/imap
vpopmail 28420 27242 0 4010 1632 0 12:04 ? 00:00:00 dovecot/imap
vpopmail 28428 27242 0 4009 1656 0 12:04 ? 00:00:00 dovecot/imap
vpopmail 28430 27242 0 4009 1644 1 12:04 ? 00:00:00 dovecot/imap
vpopmail 28432 27242 0 4011 1588 0 12:04 ? 00:00:00 dovecot/imap
vpopmail 28485 27242 0 4676 2352 1 12:04 ? 00:00:00 dovecot/imap
vpopmail 28489 27242 0 3956 1336 2 12:04 ? 00:00:00 dovecot/imap
vpopmail 28491 27242 0 4027 1908 1 12:04 ? 00:00:00 dovecot/imap
vpopmail 28492 27242 0 4043 1760 2 12:04 ? 00:00:00 dovecot/imap
-----Original Message-----
From: Eric Shubert [mailto:[email protected]]
Sent: Saturday, March 15, 2014 4:36 PM
To: [email protected]
Subject: [qmailtoaster] Re: Outlook goes offline
On 03/15/2014 12:37 AM, Linux wrote:
3. I used telnet on my QMT server as follow, but it suddenly closed my
connection.
# telnet localhost 143
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
login user pass
Connection closed by foreign host.
I think this is on the right track. When I do this, dovecot tells me to
put an 'a' before the command, so the command is:
a login user pass
which gets me logged in (substituting user and pass).
Note, I'm running the latest dovecot .qt. package
(dovecot-2.2.7-0.qt.el6.i686), but I wouldn't expect that to really matter.
You say this just started happening out of the blue and nothing changed?
Let's please see:
# df -h
# free
# uptime
# ps -eF | grep dovecot | sort
--
-Eric 'shubes'
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