[Dovecot] Solution: NFS & Dovecot!

[Apps Lists]

Hi folks!

It looks like Timo nailed down the NFS issues we've been seeing here in
last night's CVS build.

Anyone running Dovecot in a high-usage environment should check this out.

Here are some relevant ChangeLog updates that seem to address the problem:

2006-05-02 11:11  Timo Sirainen <timo.sirainen at movial.fi>

	* src/lib-storage/index/maildir/: maildir-save.c,
	  maildir-storage.h, maildir-sync.c, maildir-uidlist.c,
	  maildir-uidlist.h: Adding mail to index while saving it had a
	  race condition. Fixing it required a bit larger changes. Switched
	  uidlist/index locking order so that uidlist is now locked first.

2006-05-02 11:04  Timo Sirainen <timo.sirainen at movial.fi>

	* src/lib-index/: mail-index-private.h, mail-index-sync-update.c,
	  mail-index.c: mmap_disable: When syncing in-memory index from
	  transaction log, we didn't skip external transactions which were
	  already been in our in-memory mapping, causing "Append with UID
	  n, but next_uid = m" errors.

The build is available here:

http://dovecot.org/nightly/dovecot-20060503.tar.gz

Thus far, I've seen no complaints of corrupted indexes or core dumps. 
This is absolutely fantastic.

As always... hats off to Timo.  Great work!

Steve