Re: [Xen-users] domU pause while migration

[Rafael Emerick <rafael.rezo@xxxxxxxxx>]

I was with a similar problem.
I put more memory to my domU, and the live migration gone back to normal!
My domU is now with 512M and the live migration is ok.

On Fri, Dec 18, 2009 at 9:54 PM, Paras pradhan <pradhanparas@xxxxxxxxx> wrote:

Hi,

When I live migrate a domain to the 2nd server , I get my domain in paused state. But after a minute or so it is back to normal.  But why is this taking this much time.

xm log says:

[2009-12-18 17:46:33 xend 13531] DEBUG (DevController:158) Waiting for devices vkbd.

[2009-12-18 17:46:33 xend 13531] DEBUG (DevController:158) Waiting for devices vfb.

[2009-12-18 17:46:33 xend 13531] DEBUG (DevController:158) Waiting for devices pci.

[2009-12-18 17:46:33 xend 13531] DEBUG (DevController:158) Waiting for devices ioports.

[2009-12-18 17:46:33 xend 13531] DEBUG (DevController:158) Waiting for devices tap.

[2009-12-18 17:46:33 xend 13531] DEBUG (DevController:164) Waiting for 51712.

[2009-12-18 17:46:33 xend 13531] DEBUG (DevController:509) hotplugStatusCallback /local/domain/0/backend/tap/5/51712/hotplug-status.

[2009-12-18 17:48:13 xend 13531] ERROR (XendCheckpoint:277) Device 51712 (tap) could not be connected. Hotplug scripts not working.

Traceback (most recent call last):

  File "/usr/lib64/python2.4/site-packages/xen/xend/XendCheckpoint.py", line 275, in restore

    dominfo.waitForDevices() # Wait for backends to set up

  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 2330, in waitForDevices

    self.waitForDevices_(c)

  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 1422, in waitForDevices_

    return self.getDeviceController(deviceClass).waitForDevices()

  File "/usr/lib64/python2.4/site-packages/xen/xend/server/DevController.py", line 160, in waitForDevices

    return map(self.waitForDevice, self.deviceIDs())

  File "/usr/lib64/python2.4/site-packages/xen/xend/server/DevController.py", line 170, in waitForDevice

    raise VmError("Device %s (%s) could not be connected. "

VmError: Device 51712 (tap) could not be connected. Hotplug scripts not working.

---

Suggestions?

Thanks!

Paras

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