| Re: Xen vs. OpenVZ: live migration [message #3626 is a reply to message #3625] |
Wed, 07 June 2006 15:38   |
cdevidal
Messages: 24
Registered: June 2006
Location: Jacksonville, FL
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Junior Member |
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| kir wrote on Wed, 07 June 2006 11:27 |
| Quote: |
* How fast (your best guess) is it over a gigabit network with a typical guest distro? Xen's live migration downtime is microseconds; when I read that OpenVZ has "zero downtime" migration, does that mean it's microseconds, too?
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This is not really zero downtime -- it is zero downtime from the user's point of view, since user does not see it as a downtime. I guess the delay in processing is a few seconds (non-shared storage scenario). We are improving this time.
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That's not too bad; so you're saying you depend upon the application (Samba, Apache, MySQL, PostgreSQL, NFS, etc.) to handle the brief hang without killing the connection? I know Samba and NFS can deal with this and I suppose the rest are OK...
I'm almost certain to choose OpenVZ, it looks like a great project.
R U good enough?
TenThousandDollarOffer.com
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