Hello! I want to say thanks to all! Nowadays I had no time to work on this, but I hope I will setup some test environment to try live migration + migration on non-shared.
2017-10-02 13:50 GMT+03:00 Ivan Kudryavtsev <kudryavtsev...@bw-sw.com>: > AFAIK ACS has VM suspend parameter in KVM agent which acts when ACS is > unable to migrate successfully. Also, I almost have no problem with > 8core/16GB migration over 10G, but you are right. Sometimes it doesn't work > as expected without autoconvergence and new Qemu/KVM does the work. > > 2017-10-02 17:44 GMT+07:00 Andrija Panic <andrija.pa...@gmail.com>: > > > A bit late, and not directly related with original question - if you are > > doing any kind of KVM live migration (ACS or not), make sure you are > using > > qemu 2.5 and libvirt 1.3+, to support > > dynamic auto-convergence (regular auto-convergence, almost useless, > > available from qemu 1.6+) - becase live migration works well, until you > hit > > busy production VM, where there is hi RAM change rate, then nothing helps > > except mentioned qemu 2.5+ dynamic autoconvergence (and even this takes > > ages to completely allow some very busy VMs to finish migration...). > > > > On 5 September 2017 at 22:52, ilya <ilya.mailing.li...@gmail.com> wrote: > > > > > Personal experience with KVM (not cloudstack related) and non-shared > > > storage migration - works most of the time - but can be very slow - > even > > > with 10G backplane. > > > > > > On 9/5/17 6:27 AM, Marc-Aurèle Brothier wrote: > > > > Hi Dimitriy, > > > > > > > > I wrote the PR for the live migration in cloudstack (PR 1709). We're > > > using > > > > an older version than upstream so it's hard for me to fix the > > integration > > > > tests errors. All I can tell you, is that you should first configure > > > > libvirt correctly for migration. You can play with it by manually > > running > > > > virsh commands to initiate the migration. The networking part will > not > > > work > > > > after the VM being on the other machine if down manually. > > > > > > > > Marc-Aurèle > > > > > > > > On Tue, Sep 5, 2017 at 2:07 PM, Dmitriy Kaluzhniy < > > > > dmitriy.kaluzh...@gmail.com> wrote: > > > > > > > >> Hello, > > > >> That's what I want, thank you! > > > >> I want to have Live migration on KVM with non-shared storages. > > > >> As I understood, migration is performed by LibVirt. > > > >> > > > >> 2017-09-01 17:04 GMT+03:00 Simon Weller <swel...@ena.com.invalid>: > > > >> > > > >>> Dmitriy, > > > >>> > > > >>> Can you give us a bit more information about what you're trying to > > do? > > > >>> If you're looking for live migration on non shared storage with > KVM, > > > >> there > > > >>> is an outstanding PR in the works to support that: > > > >>> > > > >>> https://github.com/apache/cloudstack/pull/1709 > > > >>> > > > >>> - Si > > > >>> > > > >>> > > > >>> ________________________________ > > > >>> From: Rajani Karuturi <raj...@apache.org> > > > >>> Sent: Friday, September 1, 2017 4:07 AM > > > >>> To: dev@cloudstack.apache.org > > > >>> Subject: Re: Need to ask for help again (Migration in cloudstack) > > > >>> > > > >>> You might start with this commit > > > >>> https://github.com/apache/cloudstack/commit/ > > > >> 21ce3befc8ea9e1a6de449a21499a5 > > > >>> 0ff141a183 > > > >>> > > > >>> > > > >>> and storage_motion_supported column in hypervisor_capabilities > > > >>> table. > > > >>> > > > >>> Thanks, > > > >>> > > > >>> ~ Rajani > > > >>> > > > >>> http://cloudplatform.accelerite.com/ > > > >>> > > > >>> On August 31, 2017 at 6:29 PM, Dmitriy Kaluzhniy > > > >>> (dmitriy.kaluzh...@gmail.com) wrote: > > > >>> > > > >>> Hello! > > > >>> I contacted this mail before, but I wasn't subscribed to mailing > > > >>> list. > > > >>> The reason I'm contacting you - I need advise. > > > >>> During last week I was learning cloudstack code to find where is > > > >>> implemented logic of this statements I found in cloudstack > > > >>> documentation: > > > >>> "(KVM) The VM must not be using local disk storage. (On > > > >>> XenServer and > > > >>> VMware, VM live migration with local disk is enabled by > > > >>> CloudStack support > > > >>> for XenMotion and vMotion.) > > > >>> > > > >>> (KVM) The destination host must be in the same cluster as the > > > >>> original > > > >>> host. (On XenServer and VMware, VM live migration from one > > > >>> cluster to > > > >>> another is enabled by CloudStack support for XenMotion and > > > >>> vMotion.)" > > > >>> > > > >>> I made up a long road through source code but still can't see > > > >>> it. If you > > > >>> can give me any advise - it will be amazing. > > > >>> Anyway, thank you. > > > >>> > > > >>> -- > > > >>> > > > >>> *Best regards,Dmitriy Kaluzhniy+38 (073) 101 14 73* > > > >>> > > > >> > > > >> > > > >> > > > >> -- > > > >> > > > >> > > > >> > > > >> *--С уважением,Дмитрий Калюжный+38 (073) 101 14 73* > > > >> > > > > > > > > > > > > > > > -- > > > > Andrija Panić > > > > > > -- > With best regards, Ivan Kudryavtsev > Bitworks Software, Ltd. > Cell: +7-923-414-1515 > WWW: http://bitworks.software/ <http://bw-sw.com/> > -- *--С уважением,Дмитрий Калюжный+38 (073) 101 14 73*
