search

fp7-ofelia / ocf

OFELIA Control Framework (OCF) is a set of software tools for testbed management.
http://fp7-ofelia.github.com/ocf/
Other
18 stars 14 forks source link

Error during start or deleting VM Agregate on OCF #196

Closed cledsons closed 10 years ago

cledsons commented 10 years ago

Hello! Cledson again!

Now, during starting or deleting VMs on OCF web gui /opt/ofelia/oxa/log/error.log shows me

libvir: Xen error : Domain not found: xenUnifiedDomainLookupByUUID 29/01/2014 02:23:58 PM [Thread-8>XenProvisioningDispatcher.py:83] ERROR: Cannot find VM in CACHE FS project:4fc307a8-e624-410b-987c-e6a560078f6d, slice:27058d10-bbef-400b-9433-24e0090193ed, name:XXXX

Thanks for any help.

CarolinaFernandez commented 10 years ago

Hi, Cledson

what you are commenting should be happening because the Xen hypervisor cannot find the VM in that location. I will explain the workflow to help a little with that error, but you should check the logs further and see if the VM was properly created and/or initiated.

How it works:

  1. When a VM is created (in your case: XXXX), the physical files (in your case: XXXX_swap.img, XXXX.img, XXXX.conf).are placed (again, in your case) under /opt/ofelia/oxa/remote/vms/4fc307a8-e624-410b-987c-e6a560078f6d/27058d10-bbef-400b-9433-24e0090193ed
  2. When a VM is started, those files are moved to /opt/ofelia/oxa/cache/vms/4fc307a8-e624-410b-987c-e6a560078f6d/27058d10-bbef-400b-9433-24e0090193ed

The last step refers to the error you are pointing to, and suggest that the Xen hypervisor cannot find the file in order to operate with it.

Could you check that your XXXX VM is under the location of step 2 (if VM already started) or 1 (if VM stopped), and check if xm list show the machine as running?

Also: for the libvir: Xen error : Domain not found: xenUnifiedDomainLookupByUUID message, it's the same that happens with other modules that use Xen.

cledsons commented 10 years ago

Thanks Again. (solved)

alvico commented 10 years ago

Hello, could you explain how did you fixed the problem, so others with similar errors could use your solution?

cledsons commented 10 years ago

In my case, somehow, it was missing the shell environment var $OXA_DIRECTORY. I've just add a line:

call("export OXA_DIRECTORY=/opt/ofelia/oxa/") in file /opt/ofelia/oxa/bin/OfeliaAgent.py

The error "libvir: Xen error : Domain not found: xenUnifiedDomainLookupByUUID" remains, but VMs are being create normally now.