problem with ltmp and cyrus (lmtp read timeout)

[Eric Doutreleau]

Hi

i have two server that are running postfix 2.1.4 and one cyrus imap
server that is running 2.2.8 version

and from time to time i got the infamous lmtp read timeout for lmtp
delivery.
on the same time on the cyrus server i got the following messages
Sep 20 16:53:06 molure lmtp[12356]: DBERROR db4: 167 lockers
Sep 20 17:07:45 molure lmtp[13569]: DBERROR db4: 161 lockers
Sep 20 17:07:45 molure lmtp[13568]: DBERROR db4: 164 lockers
Sep 20 17:07:45 molure lmtp[13569]: DBERROR db4: 164 lockers
Sep 20 17:07:46 molure lmtp[13580]: DBERROR db4: 165 lockers

the number can increase more and i see more than 600 lockers.

here is the format i use for the database
CONFIG_DB_DUPLICATE=berkeley
CONFIG_DB_MBOX=skiplist
CONFIG_DB_SEEN=skiplist
CONFIG_DB_SUBS=flat
CONFIG_DB_TLS=berkeley
CONFIG_DB_ANNOTATION=skiplist
CONFIG_DB_SIEVE=2.2.3

It seems to me that the verification of duplicate delivery is a bit too
long for certain mail.

I have seen that some people on the liste had that kind of problem but
never seen a solution posted.

Does someone knows how to adress that problem?

Thanks in advance for any help

P.S
the DB4 version is 4.2.52



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