problem with cyrus and DB4

[Eric Doutreleau]

hi

i m using cyrus2.2.8 and berkeley DB 4.2.52 on a Fedora core 2 machine
and i have the following problem.
i always got the message in my cyrus logfile
Aug 23 04:36:14 molure lmtp[29038]: DBERROR db4: 1326 lockers
with the number increasing and not really decreasing. 
I have seen in the archive of the list that there s a bug with some
version of the db4 library and that the number is not reliable.

is the bug still present in db4?

Worse from time to time i got the following error
Aug 23 04:55:25 molure lmtp[29514]: DBERROR db4: Logging region out of
memory; you may need to increase its size
Aug 23 04:55:25 molure lmtp[29514]: DBERROR: opening
/var/lib/imap/deliver.db: Cannot allocate memory
Aug 23 04:55:25 molure lmtp[29514]: DBERROR: opening
/var/lib/imap/deliver.db: cyrusdb error

and the delivery doesn't work anymore.

I just restart cyrus and it s ok.

Should i delete too the deliver.db database?

Here is my DB_CONFIG file
set_cachesize 0 8192000 1
set_lg_regionmax 2097152
set_lg_bsize 2097152

is it ok?

Thanks in advance for any help

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