Hi, I'm trying to share maildir directories with NFS from a backend file server to distribute load on a couple frontend pop/smtp boxes. In my first tests, everything works ok at the moment with vpopmail, qmail-pop3d and courier-imapd managing remotely exported mailboxes, but I get a nfs-related locking error when trying to add/edit user accounts, changinng passwords, quotas, etc.
vpopmail tools complaint with non-NFS related error messages, but when running them thru strace, I find a timeout while trying to lock vusers cdb files. NFS client boxes are linux, server is a netapp.com filer, nfs mount options are the defaults (got error when trying to switch to tcp-based nfs), and lockd service is enabled. I know this is not directly related to vpopmail, but what nfs settings are appropiate for this purpose? Thnx
