Displaying 20 results from an estimated 10000 matches similar to: "[libvirt]Some questions about live migration"
2019 Oct 18
0
Re: [libvirt] Some questions about live migration
On Fri, Oct 18, 2019 at 15:00:19 +0800, Luyao Zhong wrote:
> Hi libvirt experts,
>
> I have some questions about live migration.
I'm assuming you are not asking about post-copy migration, since it is a
bit more complicated as the current state if split between the source
and destination hosts and none of them can keep running without the
other until migration finishes.
> * If a
2015 Aug 07
1
[PATCH] com32: write_sectors fixes
Based on syslinux 6.03
Memory allocation and copy length should be SECTOR * size for sectors operation.
Signed-off-by: Robert <luyao-c at 360.cn>
diff --git a/com32/gpllib/disk/write.c b/com32/gpllib/disk/write.c
index d183ade..3c9edff 100644
--- a/com32/gpllib/disk/write.c
+++ b/com32/gpllib/disk/write.c
@@ -40,7 +40,7 @@ int write_sectors(const struct driveinfo *drive_info, const
2015 Apr 03
1
Re: P2P live migration with non-shared storage: fails to connect to remote libvirt URI qemu+ssh
On Fri, Apr 03, 2015 at 10:13:38AM +0200, Kashyap Chamarthy wrote:
> On Fri, Apr 03, 2015 at 10:08:21AM +0200, Kashyap Chamarthy wrote:
> > Migration without --p2p works just fine, ie. the below works:
> >
> >
> > $ virsh migrate --verbose --copy-storage-all \
> > --live cvm1 qemu+ssh://kashyapc@devstack3/system
> > Migration: [100 %]
>
2018 Sep 13
3
live migration and config
Hello!
After some mistakes yesterday we ( me and my colleague ) think that it
will be wise for libvirt to check config file existence on remote side
and through error if not,
before migrating, otherwise migration will fail and VM fs can be
damaged, because it is sort of remove of power plug...
We missed twice yesterday :-(
Could you tell me is there already such option or any plans to
2014 Nov 20
2
Libvirt Live Migration
I'm trying to implement a virtualization API. I was testing migration with
libvirt I got some problems.
When I use the following command :
*virsh migrate --live --persistent --copy-storage-all vm-clone1
qemu+ssh://server_ip/system*
the migration works fine but in the destination host the migrated vm is
paused and I can't unpause it and I need to reboot the vm to be able use it
in the
2014 Nov 24
2
Re: Libvirt Live Migration
Thanks for your answer,
1) In this case i'm not using shared storage, the migration is happening
between two non-shared storage with full disk copy
2) I already created the file with same size, and the vm
works properly after a restart, my problem that it remains paused and I
can't resume it until it's rebooted.
3) I'm using qemu-kvm 1.0
On 24 November 2014 at 10:22, Michal
2014 Nov 24
2
Re: Libvirt Live Migration
I will try a newer version.
On 24 November 2014 at 11:30, Michal Privoznik <mprivozn@redhat.com> wrote:
> On 24.11.2014 11:23, Dhia Abbassi wrote:
>
>> Thanks for your answer,
>>
>> 1) In this case i'm not using shared storage, the migration is happening
>> between two non-shared storage with full disk copy
>> 2) I already created the file with same
2014 Feb 10
2
libvirt 1.2.1 / lxc : default virtual network not defined after installing/starting Libvirt
Hi There,
I am using Libvirt 1.2.1 on Fedora 20.
So, Libvirt is well installed and started but the weird thing is that the 'default' virtual network is not automatically defined and started, knowing that I can define/start it manually and everything goes fine.
previously I was using libvirt 1.0.4 and the 'default' virtual network was defined/started at Libvirt startup.
so,
2017 Jan 10
3
Regarding Migration Statistics
Greetings,
I am writing a code using libvirt API to migrate VM between two physical
hosts *(QEMU/KVM) , *say some *n *number of times.
*1)* I am using right now* virDomainPtr virDomainMigrate (.......) *and to
calculate the total migration time I am using something like this:
*clock_gettime(CLOCK_MONOTONIC_RAW,&begin); *
*migrate*(domainToMigrate,nodeToMigrate);
2014 Jan 16
1
Live migration finish threshold
Hello everyone,
Can somebody point where I can find the code where libvirt makes the
decision to complete a live migration?
I mean, at some point syncronising the VM state, it has to decide that
the delta left to be migrate is low enough to achieve downtime 0, so
libvirt finishes the migration. This "low enough" must be defined
somewhere in the code, but I am unable to find it.
2018 Sep 13
2
Re: live migration and config
13.09.2018 17:47, Jiri Denemark пишет:
> On Thu, Sep 13, 2018 at 10:35:09 +0400, Dmitry Melekhov wrote:
>> After some mistakes yesterday we ( me and my colleague ) think that it
>> will be wise for libvirt to check config file existence on remote side
> Which config file?
>
VM config file, namely qemu.
We forgot to mount shared storage (namely gluster volume), on which we
2016 Dec 02
4
Upstream libvirt releases for Virt-SIG
Hi all,
I talked to our oVirt developers who use CentOS for upstream
development. And that's what makes their lives hard because it takes a
long time before they can start using new features of libvirt. The
latest released CentOS version is 7.2 with libvirt 1.2.17, which is
pretty old. But even when CentOS 7.3 with libvirt 2.0.0 gets released,
it will already be old since libvirt 2.5.0 is
2015 Jan 22
3
live migration taking forever
Hey folks,
I am running libvirt 1.2.4 and qemu 2.1 on a 3.14.27 kernel. I've found
that live migrating a relatively large VM (16 cores and 64G ram) is taking
forever - close to 15 hours now, and still not done...
With "lsof -i", I can see a connection is established from my source
hypervisor to a target hypervisor, likely for the purpose of copying data.
nettop shows that this
2015 Mar 04
1
live migration - qemu hook
Hi,
I am using qemu hook script to track status of VM live migration - libvirt
1.2.9 as included in Debian Wheezy backports.
I would like to be informed of the fact that VM migration has successfully
finished as soon as possible. Based on the steps below, when would that be
possible?
Sample VM migration as detected by qemu hook script:
1.) Destination hypervisor:
[10:27:42.224] Args: one-16
2015 Jun 04
2
LXCs using Libvirt
Hi all,
I am trying to bring up lxc's using Libvirt JAVA API. I do the following:
conn = Connect("lxc:\\\")
xml_config = "<domain> .... <\domain>"
dom = conn.domainCreateXML(xml_config, 0)
dom.create()
Using the above code, I am able to start a domain but the domain is not
visible within the "lxc" list, i.e
when I use the command "lxc-ls
2010 Dec 07
9
[PATCH] Btrfs: pwrite blocked when writing from the mmaped buffer of the same page
This problem is found in meego testing:
http://bugs.meego.com/show_bug.cgi?id=6672
A file in btrfs is mmaped and the mmaped buffer is passed to pwrite to write to the same page
of the same file. In btrfs_file_aio_write(), the pages is locked by prepare_pages(). So when
btrfs_copy_from_user() is called, page fault happens and the same page needs to be locked again
in filemap_fault(). The fix is to
2011 Apr 06
3
[PATCH V2] Btrfs: fix subvolume mount by name problem when default mount subvolume is set
We create two subvolumes (meego_root and meego_home) in
btrfs root directory. And set meego_root as default mount
subvolume. After we remount btrfs, meego_root is mounted
to top directory by default. Then when we try to mount
meego_home (subvol=meego_home) to a subdirectory, it failed.
The problem is when default mount subvolume is set to
meego_root, we search meego_home in meego_root but can not
2018 Sep 13
2
Re: live migration and config
13.09.2018 18:57, Jiri Denemark пишет:
> On Thu, Sep 13, 2018 at 18:38:57 +0400, Dmitry Melekhov wrote:
>>
>> 13.09.2018 17:47, Jiri Denemark пишет:
>>> On Thu, Sep 13, 2018 at 10:35:09 +0400, Dmitry Melekhov wrote:
>>>> After some mistakes yesterday we ( me and my colleague ) think that it
>>>> will be wise for libvirt to check config file existence
2017 Jan 27
3
Re: LibVirt query CPU Model support and restore operation
hello ,
thanks for comments .
I tried now with force options for CPU flag which were not supported . Now
the command with non fully supported CPU model gets executed , But i am
surprised to see that still Guest cpu model is not changed and still same
as host cpu model(SAndy Bridge)
Why don't i see the model as HAswell now , could you please comment.
Command used :
virt-install
2001 Nov 25
2
What is this!
I have installed samba 2.2.2 successfully on my linux box and have
tested it perfectly on linux itself (smbclient //hostname/tmp). However,
when I tried "net use x: \\hostname\tmp" on my win2000 professional
laptop, it gave me "There are currently no logon servers available to
service the logon request". What should I do?
Thanks,
Zhong