> On Apr 29, 2016, at 10:46 AM, Steve Dickson <SteveD@xxxxxxxxxx> wrote: > > > > On 04/29/2016 10:27 AM, Adamson, Andy wrote: >> Hi Steve >> >> Yes, if we decide to keep the multiple hostname option, then a man page update is required. I don't think we have a consensus on using the multiple hostname mount option as a CLI to express session trunking addresses. Chuck Lever made some good points around not using multiple hostnames: >> >> ---- From Chuck: ---- >> - client admins can specify arbitrary hostnames on the command line; hostnames >> for instance that correspond to some other server. >> >> - network conditions can change at anytime, making >> the original set of trunks lop-sided, or some trunks >> may become unreachable. What if the server reboots >> with new i/f's or with one or more removed? The >> client would likely have to remount in these cases >> to adapt to network configuration changes. >> >> - multiple hostnames could be nailed into >> /etc/fstab on potentially hundreds of clients. When >> server or network configuration changes, there would >> have to be a manual change on all these clients. >> ---------- >> >> What do you think? Should we keep the multiple hostname CLI as one method of expressing session trunking addresses? > I would think so... I don't believe a mount CLI is an obvious good choice. The client and server should provide some indication to each other that session trunking is supported. The server should provide the proper configuration parameters, which can change even while a client has mounted the server. That's why I favor having the client perform a GETATTR(fs_locations) on the server's pseudofs, via which the server provides the correct addresses to use. The client can poll for changes in the address list on a regular basis. Please, let's automate this instead of having to nail one more wonky feature into the mount CLI? > Just to put some context into this... We are talking > about: > > mount -o v4.1 server1,server2,server3:/export /mnt > > server1 would be tried, if that fails server2 would be tried? > > steved. > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Chuck Lever -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
