search for: yuanzhen

Thanks very much Eric! This is exactly what I guessed, I just wondering where I could find this piece of code and control the the pause time of guest, while the snapshot being taken? thanks ! Best, Yuanzhen On Tue, Aug 5, 2014 at 6:30 PM, Eric Blake <eblake@redhat.com> wrote: > On 08/05/2014 03:54 PM, Yuanzhen Gu wrote: > > Hello folks, > > > > If I give command to take external disk-only live snapshot, such as > > # virsh snapshot-create-as vm1 snapshot_vm1 --disk-...

Hello folks, If I give command to take external disk-only live snapshot, such as # virsh snapshot-create-as vm1 snapshot_vm1 --disk-only will the guest OS be paused or suspend while the snapshot being taken? Thanks very much! Best, Yuanzhen

...uMonitorIOProcess:356 : QEMU_MONITOR_IO_PROCESS: mon=0x7f733c000a40 buf={"timestamp": {"seconds": 1406049922, "microseconds": 983916}, "event": "STOP"} where to find the qemuMonitorIOProcess function, and what :356 means? Thanks very much! Best, Yuanzhen

...unexpected, non-option, command line arguments" 4). I've checked /var/log/libvirt/libvirtd.log which shows cannot find suitable emulator for x86_64 I've stuck here for whole afternoon yesterday, any help or suggestion is highly appreciated !! thanks a lot in advance ! Best, Yuanzhen Best, Yuanzhen Best, Yuanzhen

...If I want to take a distributed snapshot, which need pause all the VMs and then take snapshot, how can I control the pause for all the VMs? Is there only way that I turn to freeze/thaw functions? and freeze/thaw only for file systems, not for the whole guest, am I right? Thanks a lot! Best, Yuanzhen On Wed, Aug 6, 2014 at 11:35 AM, Eric Blake <eblake@redhat.com> wrote: > On 08/06/2014 08:36 AM, Yuanzhen Gu wrote: > > [please don't top-post on technical lists] > > > Thanks very much Eric! This is exactly what I guessed, I just wondering > > where I could fi...

....xml and # virsh list I can see the VM running, and I know the ip address for the VM, but how can I know the username and password to login the running VM, which is created from XML dump? is there any place to edit and add the username and password in guest domain XML ? thanks a lot!! Best, Yuanzhen

On Wed, Aug 6, 2014 at 12:27 PM, Eric Blake <eblake@redhat.com> wrote: > On 08/06/2014 10:06 AM, Yuanzhen Gu wrote: > > yes, I got your point, thanks very much Eric. > > not entirely, because you still top-posted. > > got it entirely this time, not top-posted. > > > > If I want to take a distributed snapshot, which need pause all the VMs > and > > then take...

On Wed, Aug 6, 2014 at 1:29 PM, Eric Blake <eblake@redhat.com> wrote: > On 08/06/2014 11:11 AM, Yuanzhen Gu wrote: > > >> Libvirt is only concerned with what virtual hardware you present to the > >> > >> guest, not with the OS running in that guest or what username/password > >> > >> combinations will let you log into that guest OS. libguestfs may be &g...

Hi everybody, I recently used xyplot, but I found that for control flow can't work in the xyplot. The program code and some of my data file are shown as follow. Would someone please tell me where my code is wrong and how can make the code right? Thanks. Best regards Yuanzhen Lin Code: library("lattice") plot.data$Fam<-as.numeric(plot.data$Fam) #### xyplot can work if one by one in Fam #### plot3.data<-subset(plot.data,Fam==1) heading=paste("Fam_",1) xyplot(rank ~ ca, data=plot3.data, groups=Spacing, type="o",main=he...

On Tue, Aug 5, 2014 at 6:33 PM, Eric Blake <eblake@redhat.com> wrote: > On 08/05/2014 03:02 PM, Yuanzhen Gu wrote: > > Good afternoon guys, > > > > I created the VM from XML dump, > > # virsh create vm4.xml > > > > and # virsh list I can see the VM running, > > and I know the ip address for the VM, > > > > but how can I know the username and pass...

On 07/23/2014 01:48 PM, Yuanzhen Gu wrote: > Hi folks, > > > I need to trace how libvirt talk with qemu monitor, log everything when > give command, but does anyone know what the format, and how to read the log > file? > > for example: > 2014-07-22 17:25:22.984+0000: 18571: debug : qemuMonitorIOProces...

On 08/05/2014 03:54 PM, Yuanzhen Gu wrote: > Hello folks, > > If I give command to take external disk-only live snapshot, such as > # virsh snapshot-create-as vm1 snapshot_vm1 --disk-only > > will the guest OS be paused or suspend while the snapshot being taken? The guest will temporarily pause, but the time t...

On 08/06/2014 08:36 AM, Yuanzhen Gu wrote: [please don't top-post on technical lists] > Thanks very much Eric! This is exactly what I guessed, I just wondering > where I could find this piece of code and control the the pause time of > guest, while the snapshot being taken? thanks ! Actually, for new enough qemu...

On 08/05/2014 03:02 PM, Yuanzhen Gu wrote: > Good afternoon guys, > > I created the VM from XML dump, > # virsh create vm4.xml > > and # virsh list I can see the VM running, > and I know the ip address for the VM, > > but how can I know the username and password to login the running VM, which > i...

On 08/06/2014 10:06 AM, Yuanzhen Gu wrote: > yes, I got your point, thanks very much Eric. not entirely, because you still top-posted. > > If I want to take a distributed snapshot, which need pause all the VMs and > then take snapshot, how can I control the pause for all the VMs? You mean, you have multiple VMs, an...

On 08/06/2014 11:17 AM, Yuanzhen Gu wrote: >> Guest freeze/thaw (virDomainFSFreeze) only works on a live guest. So >> what you will have to do is: >> >> virDomainFSFreeze(vm1, ...) >> virDomainFSFreeze(vm2, ...) >> virDomainSuspend(vm1) >> virDomainSuspend(vm2) >> virDomainSnapshot...

On 08/06/2014 11:11 AM, Yuanzhen Gu wrote: >> Libvirt is only concerned with what virtual hardware you present to the >> >> guest, not with the OS running in that guest or what username/password >> >> combinations will let you log into that guest OS. libguestfs may be >> >> able to do so...

On 08/06/2014 12:10 PM, Yuanzhen Gu wrote: > Just one more question to make me clear in this point, so if I install > an application in the guest, and make a dmup XML, then create a new > guest using that configured dump XML file, the new guest should also have > that application installed? and the username an...