problems after upgrade from 2.2.27 to 2.3.4.1
Lampa
lampacz at gmail.com
Wed Dec 9 09:36:34 EET 2020
Hello,
sorry, forget put my configuration
Default client limit is 1024
dovecot -n:
# 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.5.4 ()
# OS: Linux 4.19.0-12-amd64 x86_64 Debian 10.7
# Hostname: vhermes.local
auth_mechanisms = plain login
default_client_limit = 1024
deliver_log_format = from=<%f>: %$
dict {
quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext
}
disable_plaintext_auth = no
first_valid_gid = 114
first_valid_uid = 111
last_valid_gid = 114
last_valid_uid = 111
lda_mailbox_autocreate = yes
listen = *
mail_fsync = never
mail_location = maildir:~/Maildir
mail_plugins = quota
mail_privileged_group = mail
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character
vacation subaddress comparator-i;ascii-numeric relational regex imap4flags
copy include variables body enotify environment mailbox date index ihave
duplicate mime foreverypart extracttext vacation-seconds
mmap_disable = yes
namespace inbox {
inbox = yes
location =
mailbox Drafts {
auto = subscribe
special_use = \Drafts
}
mailbox Junk {
special_use = \Junk
}
mailbox Sent {
auto = subscribe
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
auto = subscribe
special_use = \Trash
}
prefix =
}
passdb {
args = /etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
plugin {
quota = dict:User quota::proxy::quota
quota_exceeded_message = User quota exceed
quota_grace = 20%%
quota_warning = storage=99%% quota-warning 99 %u
quota_warning2 = storage=95%% quota-warning 95 %u
quota_warning3 = storage=90%% quota-warning 90 %u
quota_warning4 = storage=80%% quota-warning 80 %u
quota_warning5 = storage=75%% quota-warning 75 %u
sieve = file:~/sieve;active=~/.dovecot.sieve
sieve_extensions = +vacation-seconds
sieve_vacation_default_period = 0
sieve_vacation_max_period = 1d
sieve_vacation_min_period = 0
}
protocols = " imap lmtp sieve pop3"
service anvil {
client_limit = 3448
}
service auth {
client_limit = 10100
unix_listener /var/spool/postfix/private/auth {
mode = 0666
}
unix_listener auth-userdb {
mode = 0666
}
vsz_limit = 512 M
}
service dict {
unix_listener dict {
group = vmail
mode = 0600
user = vmail
}
}
service imap-login {
client_limit = 2048
process_limit = 1000
service_count = 0
vsz_limit = 1 G
}
service imap {
client_limit = 1
process_limit = 8192
process_min_avail = 8
service_count = 100
}
service lmtp {
executable = lmtp -L
process_min_avail = 5
unix_listener /var/spool/postfix/private/dovecot-lmtp {
group = postfix
mode = 0600
user = postfix
}
user = vmail
}
service managesieve-login {
inet_listener sieve {
port = 4190
}
process_min_avail = 0
service_count = 0
vsz_limit = 100 M
}
service pop3-login {
process_limit = 512
service_count = 0
}
service pop3 {
client_limit = 1
process_limit = 1024
service_count = 1
}
service quota-warning {
executable = script /etc/dovecot/quota-warning.sh
unix_listener quota-warning {
user = vmail
}
user = vmail
}
service stats {
unix_listener stats-reader {
group = vmail
mode = 0666
user = vmail
}
unix_listener stats-writer {
user = vmail
}
}
ssl_cert = </etc/dovecot/ssl/dovecot.crt
ssl_cipher_list =
ECDHE-RSA-AES256-SHA384:AES256-SHA256:AES256-SHA256:RC4:HIGH:MEDIUM:+TLSv1:+TLSv1.1:+TLSv1.2:!MD5:!ADH:!aNULL:!eNULL:!NULL:!DH:!ADH:!EDH:!AESGCM
ssl_client_ca_dir = /etc/ssl/certs
ssl_dh = # hidden, use -P to show it
ssl_key = # hidden, use -P to show it
syslog_facility = local0
userdb {
args = /etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
verbose_proctitle = yes
protocol lmtp {
mail_fsync = optimized
mail_plugins = quota sieve
}
protocol imap {
imap_capability = +XLIST
}
local 1.2.3.13 {
ssl_cert = </etc/dovecot/ssl/ssl13.crt
ssl_key = # hidden, use -P to show it
}
local 1.2.3.14 {
ssl_cert = </etc/dovecot/ssl/ssl14.crt
ssl_key = # hidden, use -P to show it
}
local 1.2.3.15 {
ssl_cert = </etc/dovecot/ssl/ssl15.crt
ssl_key = # hidden, use -P to show it
}
local 1.2.3.16 {
ssl_cert = </usr/local/ssl/ssl16.pem
ssl_key = # hidden, use -P to show it
}
local 1.2.3.12 {
protocol sieve {
mail_max_userip_connections = 20
}
}
local 1.2.3.13 {
protocol imap {
mail_max_userip_connections = 20
mail_plugins = quota imap_quota
}
}
local 1.2.3.13 {
protocol pop3 {
mail_plugins = quota
}
}
local 1.2.3.14 {
protocol imap {
mail_plugins = quota imap_quota
}
}
local 1.2.3.14 {
protocol pop3 {
mail_plugins = quota
}
}
local 1.2.3.15 {
protocol imap {
mail_plugins = quota imap_quota
}
}
local 1.2.3.15 {
protocol pop3 {
mail_plugins = quota
}
}
local 1.2.3.16 {
protocol imap {
mail_plugins = quota imap_quota
}
}
local 1.2.3.16 {
protocol pop3 {
mail_plugins = quota
}
}
st 9. 12. 2020 v 8:27 odesílatel Aki Tuomi <aki.tuomi at open-xchange.com>
napsal:
>
> > On 09/12/2020 09:24 Lampa <lampacz at gmail.com> wrote:
> >
> >
> > Hello,
> >
> > after debian version from 9 to, also dovecot was upgraded. There was
> problems with right imap and imap-login connection settings. I adjusted
> process_limit, service count increased /proc/sys/net/core/somaxconn from
> 128 to 1024 for imap
> >
> > It's a system with 1000+ imap and 200+ pop3 connections. When imap
> connections are over 1000 problems begins.
> >
> > Problem one:
> > 2020-12-07T12:46:39.575586+01:00 vhermes dovecot: master: Error:
> service(pop3): Initial status notification not received in 30 seconds,
> killing the process
> > 2020-12-07T12:46:39.576448+01:00 vhermes dovecot: pop3: Fatal: master:
> service(pop3): child 13975 killed with signal 9
> > 2020-12-07T12:46:42.015726+01:00 vhermes dovecot: master: Error:
> service(lmtp): Initial status notification not received in 30 seconds,
> killing the process
> > 2020-12-07T12:46:42.016680+01:00 vhermes dovecot: lmtp: Fatal: master:
> service(lmtp): child 13985 killed with signal 9
> > 2020-12-07T12:46:42.061963+01:00 vhermes dovecot: master: Error:
> service(lmtp): Initial status notification not received in 30 seconds,
> killing the process
> > 2020-12-07T12:46:42.062973+01:00 vhermes dovecot: lmtp: Fatal: master:
> service(lmtp): child 13987 killed with signal 9
> >
> > problem two:
> > 2020-12-07T13:55:43.106017+01:00 vhermes dovecot: pop3: Error:
> net_connect_unix(/var/run/dovecot/stats-writer) failed: Resource
> temporarily unavailable
> > 2020-12-07T13:56:22.300893+01:00 vhermes dovecot: lmtp: Error:
> net_connect_unix(/var/run/dovecot/stats-writer) failed: Resource
> temporarily unavailable
> > 2020-12-07T13:58:11.721892+01:00 vhermes dovecot: imap: Error:
> net_connect_unix(/var/run/dovecot/stats-writer) failed: Resource
> temporarily unavailable
> >
> > problem three - lot of
> > 2020-12-07T10:16:24.773347+01:00 vhermes dovecot: imap-login: Error:
> master(imap): net_connect_unix(imap) failed: Resource temporarily
> unavailable - http://wiki2.dovecot.org/SocketUnavailable
> >
>
>
> Your client_limit is too low. Try increasing it for these services.
>
> <snip/>
>
> > Seems that last problem is solved (if same)
> https://github.com/dovecot/core/commit/a668d767a710ca18ab6e7177d8e8be22a6b024fb
> >
> > Thank you for any help
> >
> > --
> >
> > Lampa
>
> Aki
>
--
Lampa
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