On 03/22/2012 02:26 PM, J. Bruce Fields wrote: > On Thu, Mar 22, 2012 at 09:01:12PM +0000, Myklebust, Trond wrote: >> On Thu, 2012-03-22 at 16:53 -0400, Trond Myklebust wrote: >>> Does the idmapper do the right thing for numeric ids these days? If the >>> older clients are running a newer idmapper that can deal with numeric >>> ids, then even the legacy clients should be able to work cleanly. >> >> If this isn't the case, then the older clients are broken anyway. The >> server has always had the option of returning numeric ids if it has no >> mapping from a uid/gid into an owner/group string. > > Hm, yes, but I was worried that the id<->name mapping might just be > different on the two sides--but if that's so, and they were using > auth_sys, then they likely already had problems. > > So, maybe we could default this to on. > > If that's the case then I'd rather not bother making this per export: > just an option to get the server back to its previous behavior would > seem enough. > > --b. > >> IOW: the only difference between older and newer clients should really >> be that the newer ones handle numeric strings more efficiently without >> requiring an upcall, and that the newer clients will also try to _send_ >> numeric ids in SETATTR calls. >> I was thinking about this too. Trond was making this clearer. Could we have an on/off/auto option? on the server. The auto option is start with off, and if the client "_send_ numeric ids in SETATTR calls" then this client will start to be treated as on. Though now that I see it in writing it looks too complicated. Just a crazy thought I had. If you ask me I vote for default on, because where it makes a difference from my experience with old Server the setup had a problem. Now all of a sudden it will magically work. I fail to see an opposite scenario where the brokenness was good, and now it will be bad. Thanks Boaz >> -- >> Trond Myklebust >> Linux NFS client maintainer >> >> NetApp >> Trond.Myklebust@xxxxxxxxxx >> www.netapp.com >> > -- > 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 -- 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
