Re: [K12OSN] Mosix and K12ltsp HOWTO
James Jensen (jmsjnsn@linuxfreemail.com)
Sun, 17 Mar 2002 17:08:46 -0600
Whoa Richard! You've been slashdotted! Congratulations!
http://slashdot.org/articles/02/03/17/1334230.shtml?tid=126
James Jensen
----- Original Message -----
From: "Richard Camp"
To: "James Jensen"
Cc:
Sent: Sunday, March 17, 2002 10:34 AM
Subject: Re: [K12OSN] Mosix and K12ltsp HOWTO
> On the clients there isn't much to migrate. The terminal is just a
> linux based X terminal. Local app support may cloud the issue.
> Although if you are running a local app you prob don't want to migrate
> it anyway.
>
> I don't use the clients as workstations so user poweroff is not an
> issue. But client crashes or hardware going bad does happen. Ive seen
> many things happen with processes. Some have lived and some have died.
> It will depend on the application.
>
> I was compiling a kernel and lost a node. Yikes, make hung waiting for
> the process to end.
>
> Compiling a kernel is a great way to show the good and bad side of
> mosix. Many pieces of the kernel have short compile times and don't get
> migrated. Other parts get migrated since they run longer. I run a dual
> PII 266 for my server so it takes almost 2 hours to compile a kernel. I
> have 3 nodes with celeron 366 CPUs. My kernel compile time goes to less
> than 20 mins.
>
> > make modules
>
> changes to
>
> > make -j6 modules
>
> The server load gets high at times. But I don't like waiting :)
>
> Richard
>
> James Jensen wrote:
>
> > Thanks for this How-To! I now see some things that I am missing on my
> > LTSP+MOSIX test kit. I hope to give it a go on Monday and with a little
> > luck see some success...
> >
> > I notice that client processes do not migrate in your configuration,
which I
> > am thinking is not going to be a problem in achieving the goal of taking
> > some of the workstation load off of the server because all the client
PCs
> > are really doing is displaying Xwindows anyway, right?
> >
> > It would appear to me that an intense application with many threads that
> > user A is running on the server might get moved to user B's client PC if
> > it's just sitting there idle. I guess the question remains, what will
> > happen to user A if user B does a hard shutdown while user A's
application
> > is still running. Will that be the end of the processes that it was
running
> > for user A? The question of failover is still an issue for those that
want
> > to use the LT clients/MOSIX nodes as workstations. If you've using your
> > nodes as workstations in this manner what has been your experience?
> >
> > Again, (and I think I speak for all of us interested in LTSP+MOSIX)
thank
> > you very much Richard for providing this guide. Can't wait to try it!
> >
> > James Jensen
> >
> >
>
>
>
>
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