From: Robin M. <ro...@pr...> - 2002-12-24 16:58:09
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Is using uml in a production environment advisable. does anyone use user mode linux in a production environment in place of a chroot enviornment. Is so what are the experiences. Or is uml just for testing environments. Do things run slow ??? |
From: Christopher M. <chr...@ya...> - 2002-12-24 18:23:54
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I have just been playing around with uml myself, so take my answer with a grain of salt but... The performance hit you take is very small. Running services in uml is much more secure than trying to use chroot for that purpose, because chroot was not designed with containing hostile programs in mind while uml linux was. As for running in a production environment, it depends on what sort of production environment you have in mind. Bugs that can crash the uml instance are still being found and worked out. The high performance skas mode that you want to use has only been working for the last two months or so. It has come a long way in that very short time. If I were you I would probably test the production environment you had in mind and try to crash it before deploying it. I wouldn't be suprised if for a lot of services and setups, uml jailed services could be very hard to crash. What's so cool about using uml jailed services is that you can use a real distribution in its normal setup. I have been playing around with slackware-8.1 myself for building the root filesystem. I install the a series and the n series and everything seems to work, although I wouldn't bet my job on it until I did some serious testing. Chris Marshall --- Robin Mordasiewicz <ro...@pr...> wrote: > Is using uml in a production environment advisable. > does anyone use user mode linux in a production environment in place of a > chroot enviornment. > Is so what are the experiences. > Or is uml just for testing environments. > Do things run slow ??? > > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > User-mode-linux-user mailing list > Use...@li... > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com |
From: Net Llama! <net...@li...> - 2002-12-24 22:38:27
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On 12/24/02 08:58, Robin Mordasiewicz wrote: > Is using uml in a production environment advisable. > does anyone use user mode linux in a production environment in place of a > chroot enviornment. I replaced a chroot server with a UML server, because the chroot was a completely unstable unreliable nightmare. I haven't had any problems with UML in production. > Is so what are the experiences. Good. Very good. > Or is uml just for testing environments. Not at all. > Do things run slow ??? Define slow. I use UML for email, web & cvs services, and the performance is good enough. -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ L. Friedman net...@li... Linux Step-by-step & TyGeMo: http://netllama.ipfox.com 2:35pm up 9 days, 21:45, 2 users, load average: 0.16, 0.14, 0.09 |
From: Steve F. <sf...@ih...> - 2002-12-25 00:37:29
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> Do things run slow ??? The last benchmarks I saw, which consisted of kernel compiles, indicated that your CPU speed is about 80% of the host's, while disk access seems to run about half as fast. YMMV. Steve |