[libvirt-users] Live migrate failure

[Tuân Tạ Bá]

Thanks Eric.

Sometime I live-migrated sucessfull. Although the following errors still
appears.
I will retry.

*warning : qemuMigrationCancelDriveMirror:1383 : Unable to stop block job
on drive-virtio-disk1*
*error : virCommandWait:2348 : internal error: Child process (ovs-vsctl
--timeout=5 get Interface tap6977e4a1-cd external_ids:PortData) unexpected
exit status 1: ovs-vsctl: no key "PortData" in Interface record
"tap6977e4a1-cd" column external_ids**

B&R



2014-06-16 23:41 GMT+07:00 Eric Blake <eblake at redhat.com>:

> On 06/16/2014 02:06 AM, Tuân Tạ Bá wrote:
> > Hi everyone,
> >
> > I use KVM on Openstack Cloud. And KVM migrated successfull, but not ping.
> >
> > *Source Host SIDE:  *"/var/log/libvirt/libvirtd.log"
> >
> > 2014-06-16 05:15:50.599+0000: 2096: warning :
> > qemuMigrationCancelDriveMirror:1383 : Unable to stop block job on
> > drive-virtio-disk0
> > 2014-06-16 05:15:50.601+0000: 2096: *warning :
> > qemuMigrationCancelDriveMirror:1383 : Unable to stop block job on
> > drive-virtio-disk1*
>
> These warnings don't look good; have you investigated why they are
> occurring?
>
> > *2014-06-16 05:15:50.651+0000: 2096: error : virCommandWait:2348 :
> internal
> > error: Child process (ovs-vsctl --timeout=5 get Interface tap6977e4a1-cd
> > external_ids:PortData) unexpected exit status 1: ovs-vsctl: no key
> > "PortData" in Interface record "tap6977e4a1-cd" column external_ids*
> >
> > 2014-06-16 05:15:50.651+0000: 2096: error :
> > virNetDevOpenvswitchGetMigrateData:219 : Unable to run command to get OVS
> > port data for interface tap6977e4a1-cd: Operation not permitted
> > 2014-06-16 05:15:50.651+0000: 2096: error :
> > qemuMigrationCookieNetworkAlloc:367 : Unable to run command to get OVS
> port
> > data for interface tap6977e4a1-cd: Operation not permitted
>
> Based on this failure, migration should not be successful.
>
> > 2014-06-16 05:15:50.651+0000: 2096: warning : qemuMigrationRun:3262 :
> > Unable to encode migration cookie
> > 2014-06-16 05:15:53.321+0000: 2096: warning : virAuditSend:135 : Failed
> to
> > send audit message virt=kvm op=stop reason=migrated
> vm="instance-0001b37c"
> > uuid=631ac4c7-8e84-4cf6-ad98-93877cdbe1bd vm-pid=-1: Operation not
> permitted
>
> That doesn't look good either.  Are you sure your system is set up
> correctly to allow audit messages to be generated?  But it's probably
> unrelated to the failure you are seeing.
>
> >
> > *Destination Host SIDE:* "/var/log/libvirt/libvirtd.log"
> > ......
> >
> > 2014-06-16 05:15:41.419+0000: 2229: warning : virAuditSend:135 : Failed
> to
> > send audit message virt=kvm resrc=cgroup reason=allow vm="instance-000
> > 1b37c" uuid=631ac4c7-8e84-4cf6-ad98-93877cdbe1bd
> > cgroup="/sys/fs/cgroup/devices/machine/instance-0001b37c.libvirt-qemu/"
> > class=major category=pty
> >  maj=88 acl=rw: Operation not permitted
> > 2014-06-16 05:15:41.620+0000: 2229: warning :
> > qemuDomainObjEnterMonitorInternal:1175 : This thread seems to be the
> async
> > job owner; entering moni
> > tor without asking for a nested job is dangerous
> > 2014-06-16 05:15:43.552+0000: 2229: warning : virAuditSend:135 : Failed
> to
> > send audit message virt=kvm resrc=vcpu reason=start vm="instance-0001b
> > 37c" uuid=631ac4c7-8e84-4cf6-ad98-93877cdbe1bd old-vcpu=0 new-vcpu=2:
> > Operation not permitted
> > 2014-06-16 05:15:43.552+0000: 2229: warning : virAuditSend:135 :* Failed
> to
> > send audit message *virt=kvm op=start reason=migrated vm="instance-0001
> > b37c" uuid=631ac4c7-8e84-4cf6-ad98-93877cdbe1bd vm-pid=21063:* Operation
> > not permitted*
> >
> > 1) I'm using libvirt version 1.1.1,
> >
> > libvirt-bin      1.1.1-0ubuntu8.5~cloud0
> > libvirt0      1.1.1-0ubuntu8.5~cloud0
> > python-libvirt      1.1.1-0ubuntu8.5~cloud0
> >
> > 2) #cat /etc/libvirt/qemu.conf
> > ...
> > user = "root"
> > group = "root"
> >
> > I searched GOOGLE, René speaks "downgrading to libvirt 1.1.0 and
> > reinstalling everything. They will ok". But I don't think that.
> >
> > How to resolve this error?.
>
> We've had some bug fixes for migration in the meantime; can you
> reproduce the error with libvirt 1.2.5?
>
> --
> Eric Blake   eblake redhat com    +1-919-301-3266
> Libvirt virtualization library http://libvirt.org
>
>


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