Hello,
Am 11.02.2019 um 09:12 schrieb Hajo Locke via dovecot:
Hello,
Am 08.02.2019 um 09:25 schrieb Hajo Locke via dovecot:
Hello List,
i have a problem with index-files which is separated in 2
subproblems. May be these problems are connected.
Currently we use Ubuntu 18.04 LTS which is bundled with dovecot 2.2.33.2
These servers are fresh installed machines and users are added to the
system after, there was no upgrade.
Sometimes it happens, that dovecot stops showing new mail. There is
no error in log, dovecot just seems to do his normal operations but
is not delivering new emails from /var/mail/myuser
emails are delivered again if i delete index-files from .imap folder.
So index is recreated and everything works again. I cant reproduce
this problem, but every 2 days i have one user who is reporting this
problem.
Iam surprised that no one has an opinion in this case. Nobody else
noticed this problem?
Yesterday i had a customer who was affected twice. First time we saw an
errormessage, which leads to an index problem:
Feb 13 15:46:58 hostname dovecot[30097]: imap(username): Error:
Corrupted record in index cache file
/home/popuser/username/mail/.imap/INBOX/dovecot.index.cache: UID 26876:
Broken physical size in mailbox INBOX: read(/var/mail/username) failed:
Cached message size smaller than expected (2118 < 8088, box=INBOX,
UID=26876)
Feb 13 15:46:58 hostname dovecot[30097]: imap(username): Error:
read(/var/mail/username) failed: Cached message size smaller than
expected (2118 < 8088, box=INBOX, UID=26876) (FETCH BODY[] for mailbox
INBOX UID 26876)
At this point no new incoming mail is delivered by imapd. We deleted
index files, dovecot reacreated them and all was working again.
a day later same user was affected again. But like all other cases
before there is no error or unusual logline. i turned mail_debug on, but
no further hint.
There are definitely new Mails in /var/mail/username but dovecot still
shows old state from cache. I deleted index-files again and imap-client
showed a lot of new unread mails.
In log i can see that people are active in imap-clients and managing
mails. If a new mail is coming in this period it seems to harm
index-files some times. We never noticed same behaviour with long used
dovecot 2.2.22
It seems that 2.2.33.2 which is bundled with Ubuntu18.04 LTS has a
special problem.
Please help. What is your advice?
Second problem is similiar. I Upgraded a server from Ubuntu 16.04 to
Ubuntu 18.04. This includes an upgrade from dovecot 2.2.22 to
2.2.33.2. After that i installed an self packaged dovecot 2.2.36.1
Now here is same problem, dovecot is not showing new mails, but the
difference is we have a Raw backtrace in Log just as expected:
i think this crash is a special problem of dovecot 2.2.36.1.
if i downgrade to 2.2.33.2 all is working well, upgrading again to
2.2.36.1 leeds to same crash.
Feb 8 08:45:37 hostname dovecot[14882]: imap(myuser): Error: Raw
backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xa1ee2)
[0x7f78b3b2cee2] -> /usr/lib/dovecot/libdovecot.so.0(+0xa1fda)
[0x7f78b3b2cfda] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0)
[0x7f78b3abb8a8] ->
/usr/lib/dovecot/libdovecot-storage.so.0(index_mail_parse_header+0x78a)
[0x7f78b3e7940a] -> /usr/lib/dovecot/libdovecot.so.0(+0x83592)
[0x7f78b3b0e592] ->
/usr/lib/dovecot/libdovecot.so.0(i_stream_read+0x74) [0x7f78b3b38814]
-> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_data+0x3d)
[0x7f78b3b392fd] ->
/usr/lib/dovecot/libdovecot-storage.so.0(index_mail_get_header_stream+0x4a)
[0x7f78b3e7a2ea] ->
/usr/lib/dovecot/libdovecot-storage.so.0(mail_get_header_stream+0x4a)
[0x7f78b3dfd8da] ->
/usr/lib/dovecot/libdovecot-storage.so.0(imap_msgpart_open+0x24a)
[0x7f78b3ebb57a] -> dovecot/imap [myuser ip.ip.ip.ip FETCH](+0x2081c)
[0x5581ac76d81c] -> dovecot/imap [m038422 ip.ip.ip.ip
FETCH](+0x1ea54) [0x5581ac76ba54] -> dovecot/imap [myuser ip.ip.ip.ip
FETCH](imap_fetch_more+0x39) [0x5581ac76cd69] -> dovecot/imap [myuser
ip.ip.ip.ip FETCH](cmd_fetch+0x31b) [0x5581ac75e1bb] -> dovecot/imap
[myuser ip.ip.ip.ip FETCH](command_exec+0x5c) [0x5581ac76a09c] ->
dovecot/imap [myuser ip.ip.ip.ip FETCH](+0x1b612) [0x5581ac768612] ->
dovecot/imap [myuser ip.ip.ip.ip FETCH](+0x1b6ac) [0x5581ac7686ac] ->
dovecot/imap [myuser ip.ip.ip.ip FETCH](client_handle_input+0x18d)
[0x5581ac768a6d] -> dovecot/imap [myuser ip.ip.ip.ip
FETCH](client_input+0xac) [0x5581ac768fbc] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x52)
[0x7f78b3b43482] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x12e)
[0x7f78b3b44b9e] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x36)
[0x7f78b3b43516] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f78b3b436c8]
-> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13)
[0x7f78b3ac6aa3] -> dovecot/imap [myuser ip.ip.ip.ip
FETCH](main+0x329) [0x5581ac75b159] ->
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)
[0x7f78b36bbb97] -> dovecot/imap [myuser ip.ip.ip.ip
FETCH](_start+0x2a) [0x5581ac75b2fa]
Feb 8 08:45:37 hostname dovecot[14882]: imap(myuser): Fatal: master:
service(imap): child 14135 killed with signal 6 (core dumped)
Over all dovecot and OS versions we use same old-fashioned setup.
Mails are delivered by procmail to classic mbox file.
This is output of doveconf -n
# 2.2.36.1 (5d621cf65): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.21 (92477967)
# OS: Linux 4.18.0-14-generic x86_64 Ubuntu 18.04.1 LTS
# Hostname: myhostname
auth_mechanisms = plain login
auth_username_chars =
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@üÜöÖäÄ
auth_worker_max_count = 60
disable_plaintext_auth = no
imap_capability = +XLIST
lock_method = flock
login_greeting = mailserver ready.
login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c
mail_cache_min_mail_count = 30
mail_location = mbox:~/mail:INBOX=/var/mail/%u
mail_max_userip_connections = 30
mbox_read_locks = dotlock
mbox_very_dirty_syncs = yes
namespace inbox {
inbox = yes
location =
mailbox Archiv {
auto = no
special_use =
}
mailbox Drafts {
auto = no
special_use =
}
mailbox Junk {
auto = no
special_use =
}
mailbox Sent {
auto = no
special_use =
}
mailbox Trash {
auto = no
special_use =
}
prefix =
}
passdb {
args = /etc/dovecot/dovecot-sql.conf
driver = sql
}
protocols = imap pop3
service auth-worker {
idle_kill = 1 mins
}
service auth {
idle_kill = 1 mins
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0660
user = postfix
}
user = root
}
service imap-login {
executable = /usr/lib/dovecot/imap-login
process_min_avail = 4
service_count = 0
user = dovecot
}
service imap {
process_limit = 1024
}
service pop3-login {
executable = /usr/lib/dovecot/pop3-login
process_min_avail = 4
service_count = 0
user = dovecot
}
service pop3 {
executable = /usr/lib/dovecot/pop3
process_limit = 1024
}
shutdown_clients = no
ssl_ca = </path/cert.pem
ssl_cert = </path/cert.pem
ssl_cipher_list =
ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:!DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA
ssl_dh_parameters_length = 2048
ssl_key = # hidden, use -P to show it
ssl_prefer_server_ciphers = yes
userdb {
args = /etc/dovecot/dovecot-sql.conf
driver = sql
}
verbose_proctitle = yes
protocol imap {
imap_client_workarounds = delay-newmail
mail_plugins = mail_log notify
ssl = yes
}
protocol pop3 {
pop3_client_workarounds = oe-ns-eoh outlook-no-nuls
pop3_no_flag_updates = no
pop3_uidl_format = %08Xu%08Xv
ssl = yes
}
Whats going wrong here? Main problem is first one. dovecot stops
showing new mail during service without telling a reason. reason
looks like a broken index file.
What to do here? Please tell me your opinion.
Thanks,
Hajo
Thanks,
Hajo
Thanks,
Hajo
