karl bongers wrote: > I figured out what is happening with my big file transfers. > I'm pushing the file from a Duron 750Mhz box to a Cyrix 300Mhz > box. The faster machine swamps out the slower one which then > drops frames. The default NFS timeout doesn't handle this > well, while a TCP transfer has a more aggressive/shorter timeout. > My throughput tests didn't take into account the disk IO activity > so showed much better capability. > The server (the faster box if I'm interpretting this right) should only be sending data in response to read requests from the client. Therefore, I don't think this should be a problem. If the client is getting can't keep up, then it should throttle back on sending requests. Packets could be dropped, however, if the server is being swamped with requests. > > Concerning my whining about NFS hanging on me, this appears to > be me doing something stupid. It only happens if I have a > client box try and access a server that has been disconnected. > Then the client app hangs, and when I shut down it will hang > forever at "Unmounting NFS filesystems" stage. > I also found that if I kill the "login" process associated with the > app that hangs, then it will shut down fine. > I think it may shutdown by itself, but just take a very long time (because of the long time-out period). Maybe not, though if files on the share are currently "in use" by the client. > > On Tue, Aug 06, 2002 at 12:29:14PM -0500, Florin Iucha wrote: > > On Tue, Aug 06, 2002 at 12:12:02PM -0500, Karl Bongers wrote: > > > statelessness is only a matter of degree. > > > If its so state-less then how come my machine hangs > > > on some NFS daemon when I go to shut-down after forgetting to > > > close up a NFS connection? Geez, thats annoying. > > > > Because you asked it to read something from that server and it is doing > > just that: sending requests to that server. > > > > > Anyone know some configuration magic to avoid this? > > > Anyway to gracefully deal with this when it happens without > > > just slamming power off? > > > > RTFM: http://nfs.sourceforge.net/nfs-howto/client.html > > > > florin > > > > _______________________________________________ > Twin Cities Linux Users Group Mailing List - Minneapolis/St. Paul, Minnesota > http://www.mn-linux.org > tclug-list at mn-linux.org > https://mailman.mn-linux.org/mailman/listinfo/tclug-list