Mark Sapiro wrote: >I have been running Dovecot 1.2.5 since Sept 14. Beginning at about >03:28 on Sept 21 for no apparent (to me) reason and continuing through >the present, I am seeing log messages like the following and am >experiencing delays logging in. > >Sep 22 19:07:15 sbh16 dovecot: dovecot: Temporary failure in creating >login processes, slowing down for now >Sep 22 19:07:15 sbh16 dovecot: pop3-login: Fatal: io_loop_handle_add: >epoll_ctl(1, 5): Operation not permitted >Sep 22 19:07:48 sbh16 dovecot: pop3-login: Login: user=<mark>, >method=APOP, rip=68.183.193.239, lip=72.52.113.16, TLS >Sep 22 19:07:48 sbh16 dovecot: POP3(mark): Disconnected: Logged out >top=0/0, retr=0/0, del=0/218, size=2550090 >Sep 22 19:08:15 sbh16 dovecot: dovecot: Created login processes >successfully, unstalling >Sep 22 19:08:15 sbh16 dovecot: dovecot: Temporary failure in creating >login processes, slowing down for now >Sep 22 19:08:15 sbh16 dovecot: dovecot: child 21735 (login) returned >error 89 (Fatal failure) >Sep 22 19:08:15 sbh16 dovecot: pop3-login: Fatal: io_loop_handle_add: >epoll_ctl(1, 5): Operation not permitted >Sep 22 19:08:21 sbh16 dovecot: pop3-login: Login: user=<mark>, >method=APOP, rip=68.183.193.239, lip=72.52.113.16, TLS >Sep 22 19:08:22 sbh16 dovecot: POP3(mark): Disconnected: Logged out >top=0/0, retr=1/57566, del=0/218, size=2550090 >Sep 22 19:09:15 sbh16 dovecot: dovecot: Created login processes >successfully, unstalling > >Is this a dovecot issue, some other issue or perhaps some kind of >denial of service attack? > >Here's my dovecot -n > ># 1.2.5: /usr/local/etc/dovecot.conf ># OS: Linux 2.6.18-8.1.14.el5 i686 CentOS release 5 (Final) >protocols: pop3 pop3s imap imaps >ssl_cert_file: /etc/postfix/sbh16-cert.pem >ssl_key_file: /etc/postfix/sbh16-key.pem >login_dir: /usr/local/var/run/dovecot/login >login_executable(default): /usr/local/libexec/dovecot/imap-login >login_executable(imap): /usr/local/libexec/dovecot/imap-login >login_executable(pop3): /usr/local/libexec/dovecot/pop3-login >mail_privileged_group: mail >mail_location: mbox:~/Mail:INBOX=/var/spool/mail/%u >mbox_write_locks: fcntl dotlock >mail_executable(default): /usr/local/libexec/dovecot/imap >mail_executable(imap): /usr/local/libexec/dovecot/imap >mail_executable(pop3): /usr/local/libexec/dovecot/pop3 >mail_plugin_dir(default): /usr/local/lib/dovecot/imap >mail_plugin_dir(imap): /usr/local/lib/dovecot/imap >mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 >lda: > postmaster_address: [email protected] >auth default: > mechanisms: plain apop login > worker_max_count: 5 > passdb: > driver: passwd-file > args: /usr/local/etc/dovecot.passwd > passdb: > driver: pam > userdb: > driver: passwd > socket: > type: listen > client: > path: /var/spool/postfix/private/auth > mode: 432 > user: postfix > group: postfix >[r...@sbh16 ~]#
It may be too soon to know for sure, but I restarted Dovecot and that seems to have solved the problem. However, I still don't know what may have started the problem in the first place. -- Mark Sapiro <[email protected]> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
