> I am pleased to announce the release of Cyrus IMAPd 2.3.12. This
> release should be considered production quality.
>
>
> Noteworthy changes:
>
> * Added statuscache.db to cache IMAP STATUS data which
> significantly reduces the amount of I/O necessary when neither the
> mailbox nor \Seen state has changed -- courtesy of Fastmail.fm
While upgrading my RPM packages I found that logging is too noisy for my
taste. I get alot of syslog messages like so:
Apr 24 11:35:30 test imap[10457]: statuscache, 'user.simix', 'simix',
'0x13', 'yes'
and
Apr 24 11:59:13 test imap[17299]: skiplist:
/var/lib/imap/user/s/simix.seen is already open 1 time, returning object
I wanted to change things so that those logs are only generated with
CYRUS_VERBOSE > 1 but that seems not be intended for syslog calls other
than from the standalone programs like master.c, make_md5.c and so. I
finally simply disabled those calls I considered too much:
--- cyrus-imapd-2.3.12/lib/cyrusdb_skiplist.c.orig 2008-04-09
19:56:57.000000000 +0200
+++ cyrus-imapd-2.3.12/lib/cyrusdb_skiplist.c 2008-04-24
12:10:24.000000000 +0200
@@ -751,8 +751,8 @@
}
if (list_ent) {
/* we already have this DB open! */
- syslog(LOG_NOTICE, "skiplist: %s is already open %d time%s,
returning object",
- fname, list_ent->refcount, list_ent->refcount == 1 ? "" : "s");
+ /* syslog(LOG_NOTICE, "skiplist: %s is already open %d time%s,
returning object",
+ fname, list_ent->refcount, list_ent->refcount == 1 ? "" : "s"); */
*ret = list_ent->db;
++list_ent->refcount;
return 0;
--- cyrus-imapd-2.3.12/imap/index.c.orig 2008-03-24
18:09:17.000000000 +0100
+++ cyrus-imapd-2.3.12/imap/index.c 2008-04-24 11:25:28.000000000 +0200
@@ -1573,13 +1573,13 @@
*/
if (!r) {
- syslog(LOG_DEBUG, "statuscache, '%s', '%s', '0x%02x', 'yes'",
- mboxname, imapd_userid, statusitems);
+ /* syslog(LOG_DEBUG, "statuscache, '%s', '%s', '0x%02x', 'yes'",
+ mboxname, imapd_userid, statusitems); */
goto statusdone;
}
- syslog(LOG_DEBUG, "statuscache, '%s', '%s', '0x%02x', 'no'",
- mboxname, imapd_userid, statusitems);
+ /* syslog(LOG_DEBUG, "statuscache, '%s', '%s', '0x%02x', 'no'",
+ mboxname, imapd_userid, statusitems); */
}
/* Missing or invalid cache entry */
With those changes the logging quantity is almost the same like with
2.3.11, not ten times more.
Statuscache: I have intended to enable statuscache by default in the RPM
and configure it to skiplist be default. (As usual, the imapd.conf manpage
states that those changes are RPM specific!)
Do I have to expect any troubles with this setup? Unfortunately I don't
have a really large server anymore to test with thousands of users and
very large storage. Bron?
Regards,
Simon
----
Cyrus Home Page: http://cyrusimap.web.cmu.edu/
Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki
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