[Linux-cluster] Re: E-Mail Cluster

[Jan-Frode Myklebust]

On 2006-08-03, Hansjörg Maurer <Hansjoerg.Maurer at dlr.de> wrote:
>
> we had some problems with cyrus-imap on top of gpfs a year ago
> concerning mmap files in a simple failover environment.
> (see the gpfs-mailinglist)
> But with recent versions it works.

Yes, I remember your posting.. and AFAICT you solved it by turning
off mmap in Cyrus.

	https://lists.sdsc.edu/mailman/private.cgi/gpfs-general/2005q4/000040.html

Did you consider GFS for this project ? Or are you now looking
at GFS for the same project ?

We're using courier-imap, which as far as I can tell doesn't use mmap, 
so we shouldn't hit this problem. Otherwise there is always the 
mmap-invalidate patch that should solve this...


  -jf