Switching Kernels without Rebooting?
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In article <[email protected]>,
Quoted 9 lines · Andreas Dilger
The best proposal I've heard so far was to use MOSIX to do live job migration between machines, and then upgrade the kernel like normal. In the end, it is the jobs that are running on the kernel, and not the kernel or the individual machine that are the most important. One person pointed out that there is a single point of failure in the MOSIX "stub" machine, which doesn't help you in the end (how do you update the kernel there?). If you can figure a way to enhance MOSIX to allow migrating the MOSIX "stub" processes to another machine, you will have solved your problem in a much easier way, IMHO.
If you then think of using VMWare or S/390 style methods of running multiple copies of Linux on a single system you can now consider migrating processes to a new kernel on the same system.
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