On 09/13/2013 10:28:25 AM, Serge Hallyn wrote: > Quoting Michael H. Warfield (m...@wittsend.com): > > On Fri, 2013-09-13 at 07:56 -0500, Serge Hallyn wrote: > > > Quoting Jäkel, Guido (g.jae...@dnb.de): > > > > Hello, > > > > > > > > I'm late but I just want to mention that I expect that all this > kind > > > of "unlinking" on a NFS will show up as a stale NFS handle, i.e. a > > > still visible hidden directory entry > (.nfs00??????????????????????). > > > Therefore, one have to take care of this (i.e. exclude) if he > make a > > > copy of such (for the purpose of cloning or even for backups). > This > > > isn't a LXC-, but a NFS-caveat. An NFS-aware will (should) know > about > > > to deal with this but there he should have to know (by the > > > documentation) that LXC will use this unlinking mechanism to > correlate > > > this stale handle. > > > > > Will it use the same name every time? Will it eventually go away? > > > > > I really don't want a new switch for this. If we have to do > something > > > I'd rather detect nfs and do something different. > > > > Jäkel beat me to the punch on that one but he's absolutely right. > The > > whole delete a file with the file handle still open is known to NOT > work > > properly over NFS. > > So are a lot of other things :) > > > In the back of my mind, I seem to recall some > > discussion over whether NFS v3 would handle that case properly or > not. > > I could be wrong there but earlier versions would definitely NOT > behave > > as intended. I have no clue if it works over AFS or SMB but I > > definitely would not trust it over any network file system. The > results > > could be unpredictable. > > I don't mind reverting that patch, but we're not putting in a config > switch for it. My preference is for lxc to detect a netfs and behave > differently there.
I note that if the netfs is 9p/v9fs, it _should_ work. (And if it doesn't, ping me and I'll try to fix it. I containerized that in the first place.) Unlike nfs and samba, 9p is _not_crazy_. Rob ------------------------------------------------------------------------------ LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99! 1,500+ hours of tutorials including VisualStudio 2012, Windows 8, SharePoint 2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack includes Mobile, Cloud, Java, and UX Design. Lowest price ever! Ends 9/22/13. http://pubads.g.doubleclick.net/gampad/clk?id=64545871&iu=/4140/ostg.clktrk _______________________________________________ Lxc-devel mailing list Lxc-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-devel
