sharing indirect values for parallel processing?

Over a year ago, there was quite a bit of talk on the dev list about supporting ambient value sharing through Samba or coming up with some workaround for busted NFS lock managers, but nothing was ever done about it. People on this list can tell you better than I what versions of Linux or NFS you need to look out for. In general, I think OS X and FreeBSD are solid with respect to NFS file locking. Solaris might be good as well.

Have you seen memcached?

http://www.danga.com/memcached/

Chris