*** I think the server you are using is woefully underpowered. We typically have 30+ ltsp users at any given time. We're running Dual Pentium 1000s with 4gigs ram redhat 7.1 kernel 2.4.17(compiled fresh from ftp.kernel.org). I think you really do need dual processors for that kind of load. Also I definitely wouldn't be using KDE as the Window/Desktop Manager. Try ICEWM or similiar. In our setup we use KDE 2.2 programs (like ktuberling, etc) but our Window Manager/Desktop is ICEWM. I tried to handle a large load with a single processor PIII 850 with 512 Megs ram and experienced the same problems you described below... On Sun, 17 Feb 2002, Matthew T. O'Connor wrote: > Hello, I have installed LTSP for a client and it's having a lot of problems. > > Here are the details: > Redhat 7.2 with all the latest errata update. > LTSP 3.0 from rpms > IBM Netfinity Server, PIII 500 w/ 256M RAM, nice fast SCSI raid 5 disk setup. > Approx 20 users running KDE 2.2.2 (official redhat rpms). > Staroffice 5.2 > > The problem is that after a little while we start havng major stability > problems. Users can't log in anymore, KDE starts having problems for users > who are already logged in, everything crawls to a halt, and we have to > reboot, at least once, often twice or more per day. > > Under this setup the load average typically is between 1 and 2. We have > approx 360M of swap being used (allocated a gig). The process using most of > the cpu is kswapd. > > I am aware that the server is probably under spec'd, and I am working to put > together a better server with about a gig of memory so that we won't be > swapping so much. However, It is my understanding that swapping out that much > will slow you down, but shouldn't cause stability problems. I have increased > the file-max setting in /proc to 65536 which is about twice the number I get > from doing an lsof | wc. > > My question I guess is this: Do other people have these types of stability > problems with KDE? Are there any other linux kernel settings to tweak that > will help? inode-max is no longer there in the 2.4 kernel. Do you think a > bigger server will fix the problems? > > Any help is appreciated as we are getting in hot water with this client, and > they are going to want to rip out the solution pretty soon if things don't > get much better in a hurry. > > As a side note, on Friday the server was down for an hour as some of the > clients apparently started screaming for the server IP, and the server > couldn't handle the traffic, so it wouldn't boot until we powered off many of > the clients. The client PCs are a hodgepodge of "white box" PCs with all > sorts of different nics and video cards, and all boot off of floppies created > from www.rom-o-matic.net. We were going to standardize this over time, but > thougth we could get started with what was already in place. Anyone else > ever see this type of a problems? > > Thanks in advance for any help you can give. I really want to make this > solution work. We run an LTSP server in our office (only about 5 users) and > it works very well. > > Matt > > _____________________________________________________________________ > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > For additional LTSP help, try #ltsp channel on irc.openprojects.net > _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.openprojects.net
