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? -->Andy ________________________________________ From: Steve Dickson <SteveD@xxxxxxxxxx> Sent: Friday, April 29, 2016 10:12 AM To: Adamson, Andy; trond.myklebust@xxxxxxxxxxxxxxx Cc: linux-nfs@xxxxxxxxxxxxxxx Subject: Re: [PATCH Version 3 0/2] Add multihostname support for NFSv4.1,2 Hey Andy, On 04/27/2016 11:36 AM, andros@xxxxxxxxxx wrote: > From: Andy Adamson <andros@xxxxxxxxxx> > > RFC patchset > > Main question: Do we want to use multiple hostnames on the mount command to > communicate the NFSv4.1 session trunking addresses, or only use (yet > to be coded) fs_locations_info? > > The multiple hostnames on the mount command are added to a new multiaddr > option and passed to the kernel for consumption. Should there be some type of man page update talking about his new option and how to used it? steved. > > This code requires the kernel "Version 3 NFSV4.1,2 session trunking" > patch set. > > If we want to keep the multiple hostnames on the mount command method of > expressing NFSv4.1 session trunking addresses, we should fix this: > > - v3 mounts with multiple hostnames succeeds but adds an mtab dev entry that > omits the ":/<exported dir> and so prints a warning at umount. > - need to update the manpage > > -->Andy > > Andy Adamson (2): > NFS parse NFSv4 multiple hostnames > NFS add multiaddr mount option > > utils/mount/parse_dev.c | 30 +++++++++++++++-------- > utils/mount/parse_dev.h | 2 +- > utils/mount/stropts.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++- > utils/mount/utils.c | 2 +- > 4 files changed, 84 insertions(+), 13 deletions(-) >-- 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
