Re: Cyrus 2.1.11 on BSDi 4.3.1

[Echo Online Development Team]

Does anyone have any experience doing this migration (From Berkeley to Skiplist)? We have aprox. 12,000 active mailboxes - what potential issues could we run into? What impact will this have on the performance of our IMAP server?

Thanks in advance,

M. Gamble

On Monday, February 10, 2003, at 10:03 AM, Rob Siemborski wrote:

On Sun, 9 Feb 2003, Echo Online Development Team wrote:

Greetings, I hope I am posting the problem to the right list, if not,
please direct me to the appropriate list.

We are having a serious issue with Cyrus on BSDi 4.3.1.  Over time
(aprox 24 hours) Cyrus begins to slow down to the point where IMAP
clients begin to time out.  Restarting Cyrus fixes the problem for
another 24-36 hours.

The one error message we suspect is "DBERROR db4: 475 lockers"

I'm assuming you're using the default Berkeley DB for the mboxlist
database? If so, you should try converting to a "skiplist" format
database. (dump mailbox list, recompile with --with-mboxlist-db=skiplist,
undump mailbox list).

-Rob

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Rob Siemborski * Andrew Systems Group * Cyert Hall 207 * 412-268-7456
Research Systems Programmer * /usr/contributed Gatekeeper