Lockers keeps going higher...

[Derek Chen-Becker]

> 
> My suggestion would be to switch to skiplist and get rid of those
> "lockers". I never heard anyone complaining after switching to skiplist.
> The listarchives can tell you more about it.
> 
> Regards,
> Simon
> 

As far as I know I did switch to skiplist. I upgraded to 2.3 from a 2.1
install and one of the steps was:

rm -f /var/imap/db/*
cp /var/imap/mailboxes.db /var/imap/mailboxes.db.old
cvt_cyrusdb /var/imap/mailboxes.db berkeley /var/imap/mailboxes.db.new
skiplist
mv /var/imap/mailboxes.db.new /var/imap/mailboxes.db
rm -f /var/imap/db/*
touch /var/imap/db/skipstamp
chown -R cyrus:other /var/imap
for fl in `find /var/imap/user name \*.seen`; do
/usr/cyrus/bin/cvt_cyrusdb $fl flat ${fl}.new skiplist; mv ${fl}.new
$fl; done

Is there something besides mailboxes.db and the user .seen files that
should be converted? Also, the load on the box in terms of connections
and messages is roughly equivalent as other days when this doesn't
happen. I looked through postfix and I noticed these errors:

Jul 15 08:10:58 ssmail postfix/lmtp[23685]: [ID 197553 mail.info]
10C722DB6E0: to=<xxxxxxx at cpicorp.com>,
relay=cpimail.cpicorp.com[/var/imap/socket/lmtp], delay=29096,
delays=19403/5509/3583/600, dsn=4.4.2, status=deferred (conversation
with cpimail.cpicorp.com[/var/imap/socket/lmtp] timed out while sending
end of data -- message may be sent more than once)

Jul 15 08:10:58 ssmail postfix/lmtp[23915]: [ID 197553 mail.info]
1D1AA2DB845: to=<s41270 at studios.cpicorp.com>,
relay=cpimail.cpicorp.com[/var/imap/socket/lmtp], delay=29038,
delays=19345/6092/3001/600, dsn=4.4.2, status=deferred (conversation
with cpimail.cpicorp.com[/var/imap/socket/lmtp] timed out while sending
end of data -- message may be sent more than once)

Postfix is configured with a hard limit of 10 concurrent lmtp processes.
Is that too high? If it happens again, does anyone have some dtrace
scripts for figuring out what lmtpd is doing?

Thanks,

Derek

-- 
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Derek Chen-Becker
Senior Network Engineer, Security Architect
CPI Corp, Inc.
1706 Washington Ave
St. Louis, MO 63103
Phone: 314-231-7711 x6455
Fax:   314-613-6724
dbecker at cpicorp.com
PGP Key available from public key servers
Fingerprint: E4C4 26C0 8588 E80A C29F  636D 1FBE 0FE3 2871 4AE8
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