It would. I'd test though. Depending on the amount of RAM and the I/O of the underlying host, we saw that some larger instances could take longer to suspend/resume than shutdown/power up. You maintain the state of the system, but may see longer "downtime" for the instance. Something to think about.
Thanks! Matt On 5/13/15 6:19 PM, "Favyen Bastani" <fbast...@perennate.com> wrote: >Would a virsh suspend/save/restore/resume operation accomplish similar >result as the localhost migration? > >Best, >Favyen > >On 05/13/2015 12:44 PM, Matt Van Winkle wrote: >> Yeah, something like that would be handy. >> >> From: matt <m...@nycresistor.com<mailto:m...@nycresistor.com>> >> Date: Wednesday, May 13, 2015 10:29 AM >> To: "Daniel P. Berrange" >><berra...@redhat.com<mailto:berra...@redhat.com>> >> Cc: Matt Van Winkle >><mvanw...@rackspace.com<mailto:mvanw...@rackspace.com>>, >>"openstack-operators@lists.openstack.org<mailto:openstack-operators@lists >>.openstack.org>" >><openstack-operators@lists.openstack.org<mailto:openstack-operators@lists >>.openstack.org>> >> Subject: Re: [Openstack-operators] Venom vulnerability >> >> honestly that seems like a very useful feature to ask for... >>specifically for upgrading qemu. >> >> -matt >> >> On Wed, May 13, 2015 at 11:19 AM, Daniel P. Berrange >><berra...@redhat.com<mailto:berra...@redhat.com>> wrote: >> On Wed, May 13, 2015 at 03:08:47PM +0000, Matt Van Winkle wrote: >>> So far, your assessment is spot on from what we've seen. A migration >>> (if you have live migrate that's even better) should net the same >>>result >>> for QEMU. Some have floated the idea of live migrate within the same >>> host. I don't know if nova out of the box would support such a thing. >> >> Localhost migration (aka migration within the same host) is not >>something >> that is supported by libvirt/KVM. Various files QEMU has on disk are >>based >> on the VM name/uuid and you can't have 2 QEMU processes on the host >>having >> the files at the same time, which precludes localhost migration working. >> >> Regards, >> Daniel >> >> >> >> -----BEGIN PGP MESSAGE----- Version: GnuPG v1 Comment: Charset: >>us-ascii >> hQIMA4ToeuPbGFzLAQ//WKATa6VRGKJKq7zAcUTO0tS8Lgq5zuo1buc2pJtbPKXi >> pFmHpgTsXxoU3LNhfWelAToCQdacVLUw5OiFsWyoVsjAcuRzMrN+l8WHYG4jZDGs >> bXCUp4XwShex35/vmI15NTAKrmbgIJZRi80sewCZ8H13rei86TPKA5b1C9SFxiqq >> KGmntJdiEyk+x2SOz5xvZVx/29XryUSBXo6YAVQmW4AZrrdVdkRxDKCX3tw90UZ+ >> RCibGl1nac4n2rrXZ+izKcq6d+CYo28yBaEJ5zecrU1K9M/rZwyVWnr5NTP0bs0B >> EOBV+0YsaBJdfbdrntKGUZCKVta4QdX9mOIQ7GYM/DP3IxHywFKfcwjG0iRjHYQG >> sNCK0ymhr+eNcBKWHjyVqvy/W5IIep+ES1Y7xhmwqPfWEraNQ+Scc9T6i7mWAaam >> dn7fVaO3dOHEoKVGX6Z+TtQS+FjesrgtOtvEeonVAkQLNEBVnQcMaMOrz+Ia1AXf >> +SwkcksDaqylXC1TqTLjyA7ceEHWqPL7d6EfIM7dBT/tg0h5WL2XgoJlFddSXDoR >> 99b2Arc9jaG+tJamvRO+M8Ky8uVuD5pF68wDwfvPqHbzSzzt3fmmkQkOVmtNLkjp >> ZAGDxV/0+xhurdz4HFDz6q3ShpgREsgBEOd8uY7UCn67nRZbrS4YtdUIV25dhknS >> 6gGkwfhs5IR99F/IvQUXsUs1m5DCWZI0GkWEaTcTEJfNoYHLPH+vLdtzupNz7ihp >> sNtie42q3urYLW5irAFeTW8jyjS4V5TPMMUXMvp5DG4eOGGCoKiZQhmT3JJB3PHe >> 5kghWgOlRQyK9trkH1zS8cgpXPhL+g/LGRfrp+xH7E7Hn1DLMizeQargFpcLmpdR >> KHQQCHlBuB4gTQ0n/ai5zRVrioH+6GVMVedUxsYTMlrVWNGocYVZ/lzjHdDGVPiQ >> JoxmMxVqL8icPu21FoIXGKiTA6VI0cAmugpQDXFVuk+HVYyYGtj9swmPyaR7ykXU >> 1+4KAyBXsmz4y/mQxKsSVZnlp+cq9Y6iR7IPcj06KMeTF61Zc6sJZ0aIDl6IzzOB >> UErMtFTKuAMAFPmB2wZ2kMsuz5K48BZcDSeO6PT6fbsWtQvmRK+Fqjf8iLtpLnEj >> 2aG0hKeDTJkZKJOtaHoePx1MBrfRS1kCSAhjTCIxgSuIKLsRx9M+8KfqB+suYXUA >> RbrSrOyvl16YfUmTaWdYS+PdKuLYEVHViqZecvc30jALJoQOcvoWO7Kwzh4Tl4H9 >> jeSA1+lpV0P25tm7x+PbpAVgbX0aBD4rs2TYU79MersBvL8trm3q6UcB0Bcud/XQ >> rUTUa7xUgS8XO+EsU6WMKmRZ+Usl+yTqaXH4eTMMAAL1b2Kq9Lr3RZP/zuQpYfiG >> aSfX8al6YJQRGRVwYORbeUjcOw5fioash8Xf1OEpj0fYLGbsqhRUZU6UbADjEcHo >> YJID1xvBUmw149iCbOTwHb1rTfw2t8VThkfIxbSTd7t/urYNn5F5H1dhWocvs+oR >> cd4GKZJjvQcT2/RH8taspQjWNL5asRQvwdb6ZUYQDa5G6o2N3pjIrP9Itue8Iaf6 >> B/xZ6MnFnAB821YiT1V0KbX7FB8bE6HE9z7jR1zpqBA3LbPxVtst2AxenVxbCSQT >> scA5c4YoXXgxPbrCyX22lyAKwuYEaRa7KrPVjrJoyjDDK1uFD0JRqzokJcS/7dBY >> F9xrz5H9yRoyVwy/pG9uEdoQkGth3DiOBkqUMYrvipqP0AKHRHcASdL/3fbgdB9Q >> bmCwWVTyUVbmqztawJ8Xc9+QRk1wEbLvt3df9DZkUT8lqR9JUt4xLWpMvhOhsIVQ >> iXFaeSoZTpa7B8NzTpJPfCrZtTYnZxzHewxg0gViHQPSv+LmvpR2Z3k6CkgRdqKE >> 1vM/+Ih2Ksc+Yyd5T40IObyaTmSigXnIkKv3vHQtaZaLmwiZRFJY8EmLASSz5/o/ >> LUNMH1CPPvj00W3rLzMHDnYu2ZhWETpQBGjNUWcQnzo6Vfg3SBXse3WbZu73Ix2f >> O+kMHjMtB9Nf4URij4D3obLpSVZ1F95wyS63yTuS7nncSNnvbm891946F4/k/J79 >> 4fsPVdOA3JSrR9nl10yKsxlfbeTh3saPP2GvDd7TWmC1AdCej64RyyNojJONvbi2 >> su4esVJicnUZM0/d4nqhiYacVxhDU4PnWcy9xISEwgKT0LTlC8VWO8qdRqa5RFlq >> ewUoE1pCoxapKYOv+GC4DKHmGXp4xcpDnQvQFqcG7ntlZGPmfu4kyCguniCGF0yV >> nbffVuNUQYNlBt9Y1X9YBZX+DAlx822qOXWDnqe9yhPlEcH7RxmXqdQlqDDZZDhs >> QhJvqVuBSRxmEoi4K/vE04HPa79L39h40jX1NmGuBjwhst1+1fYfHHS16PqlbNZF >> H1KuELxVkK4HKhyxr5xTGubLHjIC13tMe73bQadFod5cUiZj+fhRSTzHrAUru9Jk >> HvUDPF3b9R2fcPRqD5Mtg2gjRDsgWvrODoLW+tCdNuBf3eg3JJYzlFkJU1wiMaml >> XdQwiGD8m0hABnae7RFODogXpzfKkeFIRmV7vWQqkRc4LUBE0+diw61qaIJE+9d8 >> 3NGdESlAleI9hMQVSuwzb5vEn5d4+qPoi1/LhlToho2WJo1By9KkAIUY4eSo8jih >> CY+QgrLGZ6CRDLkkj7hVIDdThVcTxesPeDL4DStdee/d2g1PLzWMsQlp0/NDyDZx >> azBbdEZub5/el9Buzgmrv/NgKP3GYLiexFcMe4B9p8Q7AqbtE7oPxOZD4a6EVVe0 >> 3u6WKkNOzqDgLKUmt6EAYI9zxwKz/r8K4UKahoi9abrmGwvsrApICJfThC74aw== =QMaw >>-----END >> PGP MESSAGE----- >> >> >> >> -----BEGIN PGP MESSAGE----- >> Version: GnuPG v1 >> Comment: Charset: us-ascii >> >> hQIMA4ToeuPbGFzLARAAg0zb38BESkbvvLbom+Lcf+NpIfxCZvsok8DRTEeEO3v5 >> sCsiK50E/IwxRpdO0IhqfOmMhJDmHAOD8emqgNMH6dppiV2ftuxraTU27+I8Kmdi >> o8VUDb98XvH1DjsjcKLGWwM5+dKqtnh7adiJwsRRiEswuumtsh+eH5R9D7928kgV >> ZZn6b615jGulXMeIf6BuSEfLXBiSE5hgYfizcakFzdW/gm+8URGUQYGBlwm/qQoV >> f37TmSqrDiM1nVn7KF2NGdGG72NBtgkQ05GnNiYN+1L2wDnegwhHHnQzz56VJOSJ >> FcDnIDms3JhV0FxjsWTeFwvvWBYahd7EEgzTO+xY3rntU9uiQS60HHh1l9RTNyVt >> AlTmkH0BnEfzeWp/Yq5ynCQ3Sosy4LuZucmwvZeFeVtksArehSW8Gpe1p5RaP2Gy >> 12EMp9EaexKL73W4F0XQpgljNt0kKeqE16M7xE1dlxtcTU6ftwJj75L+eFbRYJYQ >> 09M75ui0PUAFidTljjx1t9ChPwjJzEZ/krm3YI193NbxXT2cL5zCwOV3XILKL8q1 >> FVbUDREQqaZi09sPst06Z3ODUVFMgCG3OpQcsyIQnYhMMhWxvAsg4UIh/vagkeFL >> oHtVU+AWsO4RMqfrDUvNMUzUpe15mR61A8qGooEF56IehvCPh1obPQnGzS622f7S >> jwGgCLs9PZAs/f7S0gKKQtExxuK1cvXbgR8L6KgkNFZxdXJyiLdCZ34VURqoQ+zu >> nrdRbY+kVNx3+slu5Qlyi2RMNsrmE6Y9V2YNPcwXBHLDgGgvtyqsE7zUkWrGxZYQ >> AztYQPdi6fU8K2muzJDS+f5j9F4YPcotARHv0H3KHO+ZJrxSX1R8G8eG1YbtFrLG >> =aZhd >> -----END PGP MESSAGE----- >> _______________________________________________ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators