Failed live migration is wider spread than these two VM's, but they are a good example because they were both built from the same template and have no modifications after they were created. They were also migrated one after the other, with one successfully migrating and the other not.

Are there any increased logging levels that might help determine what the issue is?

Thanks,

Steve Dainard 
IT Infrastructure Manager
Miovision | Rethink Traffic

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On Mon, Feb 17, 2014 at 11:47 AM, Dafna Ron <dron@redhat.com> wrote:
did you install these vm's from a cd? run it as run-once with a special monitor?
try to think if there is anything different in the configuration of these vm's from the other vm's that succeed to migrate?


On 02/17/2014 04:36 PM, Steve Dainard wrote:
Hi Dafna,

No snapshots of either of those VM's have been taken, and there are no updates for any of those packages on EL 6.5.

*Steve Dainard *
IT Infrastructure Manager
Miovision <http://miovision.com/> | /Rethink Traffic/

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On Sun, Feb 16, 2014 at 7:05 AM, Dafna Ron <dron@redhat.com <mailto:dron@redhat.com>> wrote:

    does the vm that fails migration have a live snapshot?
    if so how many snapshots does the vm have.
    I think that there are newer packages of vdsm, libvirt and qemu -
    can you try to update



    On 02/16/2014 12:33 AM, Steve Dainard wrote:

        Versions are the same:

        [root@ovirt001 ~]# rpm -qa | egrep 'libvirt|vdsm|qemu' | sort
        gpxe-roms-qemu-0.9.7-6.10.el6.noarch
        libvirt-0.10.2-29.el6_5.3.x86_64
        libvirt-client-0.10.2-29.el6_5.3.x86_64
        libvirt-lock-sanlock-0.10.2-29.el6_5.3.x86_64
        libvirt-python-0.10.2-29.el6_5.3.x86_64
        qemu-img-rhev-0.12.1.2-2.355.el6.5.x86_64
        qemu-kvm-rhev-0.12.1.2-2.355.el6.5.x86_64
        qemu-kvm-rhev-tools-0.12.1.2-2.355.el6.5.x86_64
        vdsm-4.13.3-3.el6.x86_64
        vdsm-cli-4.13.3-3.el6.noarch
        vdsm-gluster-4.13.3-3.el6.noarch
        vdsm-python-4.13.3-3.el6.x86_64
        vdsm-xmlrpc-4.13.3-3.el6.noarch

        [root@ovirt002 ~]# rpm -qa | egrep 'libvirt|vdsm|qemu' | sort
        gpxe-roms-qemu-0.9.7-6.10.el6.noarch
        libvirt-0.10.2-29.el6_5.3.x86_64
        libvirt-client-0.10.2-29.el6_5.3.x86_64
        libvirt-lock-sanlock-0.10.2-29.el6_5.3.x86_64
        libvirt-python-0.10.2-29.el6_5.3.x86_64
        qemu-img-rhev-0.12.1.2-2.355.el6.5.x86_64
        qemu-kvm-rhev-0.12.1.2-2.355.el6.5.x86_64
        qemu-kvm-rhev-tools-0.12.1.2-2.355.el6.5.x86_64
        vdsm-4.13.3-3.el6.x86_64
        vdsm-cli-4.13.3-3.el6.noarch
        vdsm-gluster-4.13.3-3.el6.noarch
        vdsm-python-4.13.3-3.el6.x86_64
        vdsm-xmlrpc-4.13.3-3.el6.noarch

        Logs attached, thanks.

        *Steve Dainard *
        IT Infrastructure Manager
        Miovision <http://miovision.com/> | /Rethink Traffic/

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        <https://www.linkedin.com/company/miovision-technologies>  |
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        On Sat, Feb 15, 2014 at 6:24 AM, Dafna Ron <dron@redhat.com
        <mailto:dron@redhat.com> <mailto:dron@redhat.com

        <mailto:dron@redhat.com>>> wrote:

            the migration fails in libvirt:


            Thread-153709::ERROR::2014-02-14
            11:17:40,420::vm::337::vm.Vm::(run)
            vmId=`08434c90-ffa3-4b63-aa8e-5613f7b0e0cd`::Failed to migrate
            Traceback (most recent call last):
              File "/usr/share/vdsm/vm.py", line 323, in run
                self._startUnderlyingMigration()
              File "/usr/share/vdsm/vm.py", line 403, in
        _startUnderlyingMigration
                None, maxBandwidth)
              File "/usr/share/vdsm/vm.py", line 841, in f
                ret = attr(*args, **kwargs)
              File
                   "/usr/lib64/python2.6/site-packages/vdsm/libvirtconnection.py",
            line 76, in wrapper
                ret = f(*args, **kwargs)
              File "/usr/lib64/python2.6/site-packages/libvirt.py",
        line 1178,
            in migrateToURI2
                if ret == -1: raise libvirtError
        ('virDomainMigrateToURI2()
            failed', dom=self)
            libvirtError: Unable to read from monitor: Connection
        reset by peer
            Thread-54041::DEBUG::2014-02-14
            11:17:41,752::task::579::TaskManager.Task::(_updateState)
            Task=`094c412a-43dc-4c29-a601-d759486469a8`::moving from state
            init -> state preparing
            Thread-54041::INFO::2014-02-14
            11:17:41,753::logUtils::44::dispatcher::(wrapper) Run and
        protect:
            getVolumeSize(sdUUID='a52938f7-2cf4-4771-acb2-0c78d14999e5',
            spUUID='fcb89071-6cdb-4972-94d1-c9324cebf814',
            imgUUID='97c9108f-a506-415f-ad2
            c-370d707cb130',
        volUUID='61f82f7f-18e4-4ea8-9db3-71ddd9d4e836',
            options=None)

            Do you have the same libvirt/vdsm/qemu on both your hosts?
            Please attach the libvirt and vm logs from both hosts.

            Thanks,
            Dafna



            On 02/14/2014 04:50 PM, Steve Dainard wrote:

                Quick overview:
                Ovirt 3.3.2 running on CentOS 6.5
                Two hosts: ovirt001, ovirt002
                Migrating two VM's: puppet-agent1, puppet-agent2 from
        ovirt002
                to ovirt001.

                The first VM puppet-agent1 migrates successfully. The
        second
                VM puppet-agent2 fails with "Migration failed due to
        Error:
                Fatal error during migration (VM: puppet-agent2, Source:
                ovirt002, Destination: ovirt001)."

                I've attached the logs if anyone can help me track
        down the issue.

                Thanks,

                *Steve Dainard *
                IT Infrastructure Manager
                Miovision <http://miovision.com/> | /Rethink Traffic/

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        101,
                Kitchener, ON, Canada | N2C 1L3
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            --     Dafna Ron




    --     Dafna Ron




--
Dafna Ron