On Jun 21, 2007, at 7:56 PM, Tony Tsang wrote:
I have some machines running FreeBSD and dovecot deployed. User's home dir is on NFS mount and I've found that dovecot only works with dotlock file locking mechanism, fcntl and flock failed. Now it causes problem with thunderbird (thunderbird is cachine connections) waiting forever and I noticed that dovecot is trying to acquire a lock but unsuccessful since the lock file is in place. Is it possible to use file locking other than dotlock on FreeBSD NFS mounted homedir? How do I achieve this?
I had a similar problem with NFS and dotlock contention with dovecot- uidlist on FreeBSD 6.2. The problem is a long-standing bug in the FreeBSD NFS client. If I remember right, when reviewing the code, dotlock is the only option for dovecot-uidlist.
I posted a workaround patch: http://www.dovecot.org/list/dovecot/2007-May/022883.html Not the best solution, but it is working fine on my setup. -Doug
