> On Wed, 29 Mar 2006, Simon Matter wrote: > >>> On Tue, 28 Mar 2006, Sebastian Hagedorn wrote: >>> >>>> --On 28. März 2006 02:27:47 -0400 "Marc G. Fournier" <[EMAIL PROTECTED]> >>>> wrote: >>>> >>>>> master[62957]: process started >>>>> ctl_cyrusdb[62959]: DBERROR db4: /var/spool/imap/db/__db.001: No such >>>>> file or directory >>>>> master[62957]: process 62959 exited, status 75 >>>>> ctl_cyrusdb[62959]: DBERROR db4: /var/spool/imap/db/__db.001: No such >>>>> file or directory >>>>> ctl_cyrusdb[62959]: DBERROR db4: /var/spool/imap/db/__db.001: No such >>>>> file or directory >>>>> master[62957]: ready for work >>>>> ctl_cyrusdb[62959]: DBERROR db4: /var/spool/imap/db/__db.001: No such >>>>> file or directory >>>>> ctl_cyrusdb[62959]: DBERROR: dbenv->open '/var/spool/imap/db' failed: >>>>> No >>>>> such file or directory >>>>> ctl_cyrusdb[62959]: DBERROR: init() on berkeley >>>>> ctl_cyrusdb[62959]: DBERROR: writing /var/spool/imap/db/skipstamp: No >>>>> such file or directory >>>>> ctl_cyrusdb[62959]: DBERROR: init() on skiplist >>>>> ctl_cyrusdb[62959]: recovering cyrus databases >>>>> ctl_cyrusdb[62959]: IOERROR: creating directory /var/spool/imap: >>>>> Permission denied >>>>> ctl_cyrusdb[62959]: DBERROR: opening /var/spool/imap: cyrusdb error >>>> >>>> Looks like your permissions are wrong. >> >> I think there are no wrong permissions but you simply do verbose logging >> and when starting with not existing dbs, those logs appear and the dbs >> are >> created. However, are you sure you really are using /var/spool/imap for >> the databases? > > Definitely sure, its how I have it defined in my imapd.conf file ... > >> And, are you sure your cyrus group is "cyrus", not "mail", which is >> usually the case. > > Now, this one is how mkimap is setting it up, so I'm pretty sure this is > right ... not something I've ever set ... has never caused a problem, and > been using cyrus-imapd for, god, 8+ years now ... > >>> # ls -ld /var/spool/imap /var/spool/imap/* >>> drwxr-xr-x 10 cyrus cyrus 512 Mar 29 01:16 /var/spool/imap >>> -rw------- 1 cyrus cyrus 144 Mar 29 01:16 >>> /var/spool/imap/annotations.db >>> drwxr-xr-x 2 cyrus cyrus 512 Mar 29 01:16 /var/spool/imap/db >>> drwx------ 2 cyrus cyrus 512 Mar 29 01:16 >>> /var/spool/imap/db.backup1 >>> drwx------ 2 cyrus cyrus 512 Mar 29 00:30 >>> /var/spool/imap/db.backup2 >>> -rw------- 1 cyrus cyrus 8192 Mar 28 06:26 >>> /var/spool/imap/deliver.db >>> drwxr-xr-x 2 cyrus cyrus 512 Mar 28 06:12 /var/spool/imap/log >>> -rw------- 1 cyrus cyrus 328 Mar 29 01:16 >>> /var/spool/imap/mailboxes.db >>> drwxr-xr-x 2 cyrus cyrus 512 Mar 28 06:12 /var/spool/imap/msg >>> drwxr-xr-x 2 cyrus cyrus 512 Mar 28 11:52 /var/spool/imap/proc >>> drwxr-xr-x 2 cyrus cyrus 512 Mar 28 06:12 /var/spool/imap/ptclient >>> drwxr-xr-x 2 cyrus cyrus 512 Mar 28 06:13 /var/spool/imap/socket >>> >>>> If I were you I'd use skiplist for all the databases that are db4 by >>>> default >>>> ... >>> >>> What is skiplist, and what does it give over db4? And, of course, what >>> drawbacks are there to it? >> >> It's a database backend usable in cyrus instead of BDB. What it gives >> you >> is that it usually works, the drawbacks are that it may be slower than >> BDB >> in certain situations. In my case stability is most important and I >> couldn't find anything to be slower or some kind of increased load when >> I >> was swithing to skiplist only. But, the most important thing it gives >> you >> is compatibility, you never depend on the BDB version of libs installed >> on >> your system and you don't have to care about ondisk format of BDB files. >> It has been a blessing for me and many others, YMMV. > > 'k, first question .. under what situation would I find it slower? And > is it noticeable, or would I have to really be looking for it?
In theory, I've been told, it should be slower for tls_sessions.db and deliver.db. However, I have NEVER seen anything to be slower, even on quite large servers. > > And ... were I to go this route ... what's involved in converting an > "existing" installation? Is it relatively easy to do? Depends on which version of cyrus-imapd you are running. With current versions, the database backends are runtime configurable. DB conversion is done once by hand using cvt_cyrusdb, and you have to configure cyrus accordingly. Simon ---- 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
