Date: Fri, 10 Sep 2010 22:28:09 +0000 From: Andrew Hotlab <andrew.hotlab@hotmail.com> To: <k@7he.at>, <freebsd-jail@freebsd.org> Subject: RE: Jail hot migration Message-ID: <SNT139-w19DB405BADCC8F1E3A9C50F6740@phx.gbl>
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> Date: Fri=2C 10 Sep 2010 19:45:20 +0000 > From: k@7he.at > To: freebsd-jail@freebsd.org > Subject: Re: Jail hot migration >=20 > On Fri=2C Sep 10=2C 2010 at 04:28:15PM +1200=2C Peter Toth wrote: > > Hi guys=2C > >=20 > > I was lately thinking around jail hot-migration feature where one jail > > could be moved from one host to another without > > shutting it down=2C something like vmotion in VMware world. > >=20 >=20 > I implemented a working prototype of a container-style virtualization > for FreeBSD=2C capable of live/hot migration. It has nothing to do with > jail=2C but it makes use of vimage/vnet. >=20 > I am going to do a presentation at the EuroBSDCon in October=2C > but a paper and a demo video (no sources yet=2C sorry) are already > online at: >=20 > http://www.7he.at/freebsd/vps/ >=20 I was really impressed by the live migration demo video and I wish to ask y= ou a few questions about your solution... At this time VPS technology lacks resource limiting capability=2C do you th= ink it could be compatible with the resource container project sponsored by= the FreeBSD Foundation? Multiple virtual instances of FreeBSD running as VPS are required to share = the same kernel=2C as in the Jail paradigm=2C or they may run different ker= nels=2C as in NetBSD (http://www.NetBSD.org/docs/rump/)? How many resources do you estimate in order to complete your project? It seems that it will be far more difficult to implement the live migration= feature on the Jail framework than in VPS=2C but how about offline migrati= on and resource control? Some work has been done to achieve that with the c= urrent Jail paradigm=2C do you think that VPS will be able to do a better j= ob in these areas too? Sorry if any question sounds stupid: I do not know much on the internals of= the technologies I mentioned. Thank you very much for your work. Andrew P.S. I'm sorry for the format of the e-mail=2C I'm using this awful Hotmail= web interface. :( =
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