On Mon, 26 Sep 2005, Aaron Glenn wrote:
There is replication code in the 2.3 branch; though from what I can tell it hasn't been touched in a few months and makes me wonder if it's being actively developed still. Nevertheless, in my exhaustive search for any and all information on IMAP replication, I came across a few list posts detailing the 2.3 replication code in production, without many issues, for over a year.
I wrote the code which was eventually merged into the 2.3 branch back in Autumn 2002. We've been using it on our production systems for a little over two years now, and all of our users have been replicated (rolling replication to hot spare system, plus nightly replication to tape spooling array) for about 18 months.
The last significant change to my code base was November last year. That's not a sign of neglect, the code just does everything we need right now.
Ken merged the code into 2.3 at the start of this year. He put in quite a lot of work to merge the code properly into Cyrus (I had deliberately left it to one side to make updates easier) and add support for features such as shared mailboxes and annotation that we just don't need right now. Its still conceptually the same code and the same design.
Invariably working on code introduces new bugs (including a particularly exciting one caused by a stray semicolon). People are also pushing the code in new and interesting ways. Ken fixed a bug involving account renaming (user.xxx -> user.yyy) a couple of weeks back: that's something our nightly useradmin scripts just never try to do.
Looking back at features which were introduced into earlier versions of Cyrus, I imagine that people will start to test the new code seriously when Cyrus 2.3 is released, and that there will be a period of fixing bugs which will tail off as 2.3 stabilises.
The complication is that there doesn't appear to be anyone left at CMU to release new versions of Cyrus at the moment. Poor Jeffrey Eaton seems to be the last man standing there. My own experience of running things single handed is that it doesn't leave much time for development work.
-- David Carter Email: [EMAIL PROTECTED] University Computing Service, Phone: (01223) 334502 New Museums Site, Pembroke Street, Fax: (01223) 334679 Cambridge UK. CB2 3QH. ---- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
