After setting up eZ DFS clustering (http://ez.no/doc/ez_publish/technical_manual/4_x/features/clustering/setting_it_up_for_an_ezdfsfilehandler), "access denied" pages are not cached properly.

The entry in ezdfsfile after the first page load (which loads at the expected speed as other content pages) is similar to:

INSERT INTO `ezdfsfile` VALUES ('var/tao/cache/content/tao/5-9b676f6081843e14c8d5682a3647f38f.cache.generating', 'var/tao/cache/content/tao/5-9b676f6081843e14c8d5682a3647f38f.cache.generating', '588803514a4a26a99554e43762fa66cf', '', '', 0, 1281244184, 0, 0);

Subsequent page loads for the same page take several seconds (sometimes more than 10 on a busy live site) to load, because of the false "generating" entry that makes the server wait for a cache file that isn't actually being generated.

This has been reproduced on multi-server setups with an NFS mount as well as a local one-server, one-DB stock install with viewcaching on. A quick page to test is /Users.