Matt,
you really need more memory, and yes, at some point you might run
into stability problems with memory starved systems. i suspect that you
have other problems as well, possibly a nice, inermittent hardware hiccup.
I would add memory first and see if the problem persists, if it does, get
the best diag programs ou can get from ibm. good luck, julius
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
>
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