[Dovecot] stalling on LOGIN

Brandon Keepers brandon at opensoul.org
Tue Apr 1 22:34:56 EEST 2008


I'm getting strange timeouts occasionally on Dovecot 1.0.rc15 on  
Debian 4.0, and haven't been able to figure out the cause.

$ ./src/imaptest user=test%d at imaptest.com host=localhost pass=foo  
mbox=~/dovecot-crlf - select=0
Logi Logo
100% 100%
    2    4   7/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
    0    0  10/ 10
  - 3 stalled for 16 secs in command: 2 LOGIN "test1 at imaptest.stage.dealerflow.com 
" "test"
  - 4 stalled for 16 secs in command: 2 LOGIN "test1 at imaptest.stage.dealerflow.com 
" "test"
  - 5 stalled for 16 secs in command: 2 LOGIN "test1 at imaptest.stage.dealerflow.com 
" "test"
  - 6 stalled for 16 secs in command: 2 LOGIN "test1 at imaptest.stage.dealerflow.com 
" "test"
  - 7 stalled for 16 secs in command: 2 LOGIN "test1 at imaptest.stage.dealerflow.com 
" "test"
  - 8 stalled for 16 secs in command: 2 LOGIN "test1 at imaptest.stage.dealerflow.com 
" "test"
  - 9 stalled for 16 secs in command: 2 LOGIN "test1 at imaptest.stage.dealerflow.com 
" "test"
  - 10 stalled for 16 secs in command: 2 LOGIN "test1 at imaptest.stage.dealerflow.com 
" "test"
  - 11 stalled for 16 secs in command: 2 LOGIN "test1 at imaptest.stage.dealerflow.com 
" "test"
  - 12 stalled for 16 secs in command: 2 LOGIN "test1 at imaptest.stage.dealerflow.com 
" "test"

Eventually, I get:

Error: test18 at imaptest.stage.dealerflow.com[6]: Unexpected BYE: * BYE  
Disconnected for inactivity.
Error: test43 at imaptest.stage.dealerflow.com[10]: Unexpected BYE: * BYE  
Disconnected for inactivity.
Error: test19 at imaptest.stage.dealerflow.com[9]: Unexpected BYE: * BYE  
Disconnected for inactivity.
Error: test40 at imaptest.stage.dealerflow.com[8]: Unexpected BYE: * BYE  
Disconnected for inactivity.
Error: test44 at imaptest.stage.dealerflow.com[3]: Unexpected BYE: * BYE  
Disconnected for inactivity.
Error: test26 at imaptest.stage.dealerflow.com[7]: Unexpected BYE: * BYE  
Disconnected for inactivity.
Error: test38 at imaptest.stage.dealerflow.com[4]: Unexpected BYE: * BYE  
Disconnected for inactivity.
Error: test32 at imaptest.stage.dealerflow.com[1]: Unexpected BYE: * BYE  
Disconnected for inactivity.
Error: test95 at imaptest.stage.dealerflow.com[5]: Unexpected BYE: * BYE  
Disconnected for inactivity.
Error: test25 at imaptest.stage.dealerflow.com[2]: Unexpected BYE: * BYE  
Disconnected for inactivity.


$ sudo /usr/sbin/dovecot -n
# /etc/dovecot/dovecot.conf
protocols: imap
listen: *:143
ssl_disable: yes
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/lib/dovecot/imap-login
first_valid_uid: 8
last_valid_uid: 8
mail_location: maildir:/var/mail/%1d/%d/%1n/%n
mail_debug: yes
auth default:
   mechanisms: plain login
   debug: yes
   passdb:
     driver: ldap
     args: /etc/dovecot/dovecot-ldap.conf
   userdb:
     driver: ldap
     args: /etc/dovecot/dovecot-ldap.conf
   socket:
     type: listen
     client:
     master:
       path: /var/run/dovecot/auth-master
       mode: 432
       user: mail
       group: mail

# dovecot-ldap.conf
hosts = localhost:389
dn = cn=admin,dc=example,dc=com
dnpass = secret
auth_bind = yes
auth_bind_userdn = uid=%n,ou=people,associatedDomain= 
%d,o=accounts,dc=example,dc=com
ldap_version = 3
base = dc=example.com,dc=com
user_filter = (mail=%u)
user_global_uid = mail
user_global_gid = mail


I've tried enabling all the debugging, but there don't seem to be any  
errors.

Any ideas?

Thanks,
Brandon
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