[Dovecot] Alpha4 pre-release, please upgrade

[Timo Sirainen]

On Sun, 2005-10-16 at 14:56 -0400, Glenn Leavell wrote:
>   dovecot: Oct 16 14:20:15 Error: imap(glenn): flock() locks not supported
..
> This looks like a locking issue on an index file.  I had been leaving
> lock_method unset, letting it default to fcntl (inferred from the comments
> in dovecot-example.conf).  I changed it to the explicit "lock_method = fcntl"
> and this fixed the problem.
> 
> Has the lock_method default changed from alpha3 to alpha4?

Yes. I forgot to mention this.

> And is it proper to infer from the comment below in dovecot-example.conf
> that the default is supposed to be fcntl?
> 
> 	#lock_method = fcntl

Look at the dovecot-example.conf in the new tarball:

# Locking method for index files. Alternatives are fcntl, flock and dotlock.
# Dotlocking uses some tricks which may create more disk I/O than other locking
# methods. NOTE: If you use NFS, remember to change also mmap_disable setting!
#lock_method = flock

The reason for this change was that I thought since so many people
have /home mounted as NFS, the best way to inform them about NFS
problems would be to fail completely until they have changed lock_method
and also seen the note about mmap_disable.

Unfortunately flock() isn't supported at all with Solaris, so this is a
bit of an extra trouble for Solaris users.

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