This morning I found the following in my logs. This is the first day the box has had heavy use:
Apr 12 07:09:18 saturn cyrus/master[19318]: imap has -36 workers?!?
Apr 12 07:09:18 saturn cyrus/master[19318]: lmtpunix has -74 workers?!?
Apr 12 07:09:18 saturn cyrus/master[19318]: can't fork process to run service imap: Resource temporarily unavailable
Apr 12 07:09:19 saturn last message repeated 50 times
Apr 12 07:09:19 saturn cyrus/master[19318]: can't fork process to run service sieve: Resource temporarily unavailable
I'm new to Debian, and I didn't realize there were ulimits set by default in Woody (256 max procs, 1024 open files). So I changed those limits to unlimited processes and 32000 open files, but I'm still having some problems; it looks like the master is losing track of how many processes are running. Any suggestions?
So far, the only thing that has allowed me to keep this box running for any length of time has been setting it up to prefork a crazy number of processes. For example, I changed the default 'imap' line in cyrus.conf from this:
imap cmd="imapd -U 30" listen="imap" prefork=15 maxchild=100
to this:
imap cmd="imapd" listen="imap" prefork=400
Even after setting up a ton of preforks, it eventually stops responding on the port in question. LMTP seems to die first. When I run
sendmail -q -v
I get the following:
Running /var/spool/mqueue/main/i3CKdniD031090 (sequence 1 of 1659) julesa... Deferred: Connection reset by localhost
After a restart of master, it works well for a while, then after an hour or so it stops responding again. Another oddity is that after restarting master, I get the following syslog errors:
Apr 12 13:24:05 saturn sm-mta[23121]: i3CIOhiD013667: SYSERR(root): Could not connect to socket /var/run/cyrus/socket/lmtp: Connection refused by localhost
Apr 12 13:25:02 saturn cyrus/master[28920]: unable to open imap socket: Address family not supported by protocol
Apr 12 13:25:03 saturn cyrus/master[28920]: unable to open imaps socket: Address family not supported by protocol
Apr 12 13:25:04 saturn cyrus/master[28920]: unable to open pop3 socket: Address family not supported by protocol
Apr 12 13:25:05 saturn cyrus/master[28920]: unable to open pop3s socket: Address family not supported by protocol
Apr 12 13:25:06 saturn cyrus/master[28920]: unable to open sieve socket: Address family not supported by protocol
Apr 12 13:28:11 saturn cyrus/imapd[29411]: Fatal error: tls_start_servertls() failed
Apr 12 13:30:30 saturn cyrus/master[28920]: non-busy child pid 29911, service sieve reported new connection
Apr 12 13:33:09 saturn cyrus/master[28920]: non-busy child pid 29002, service imap reported new connection
Any tips, ideas, or suggestions are greatly appreciated.
-Jules
-- Jules Agee System Administrator Pacific Coast Feather Co. [EMAIL PROTECTED] x284
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