Re: [Xen-users] XCP xapi debugging

[Vern Burke <vburke@xxxxxxxx>]

George:
   In my experience, 90+% of the time, unexplained failures to start 
are the result of not enough available memory on the pool master. This 
is one of the reasons I've put so much effort into the load balancing on 
XCCS.
When it happens, try migrating some of the VMs off the pool master and 
see if that helps.
Vern Burke

SwiftWater Telecom
http://www.swiftwatertel.com
Xen Cloud Control System
http://www.xencloudcontrol.com


On 10/15/2010 8:01 AM, George Shuklin wrote:
> Good day.
>
> Suddenly on pretty high loaded pool with about 50 VM per 5 hosts I got
> following problem vm does not start and start command silently waiting.
>
> xe task-list displays pack of tasks with same status and resident-on:
>
> uuid ( RO)                  : b607ef7b-e185-72d9-4d3a-5795557922fc
>              name-label ( RO): VM.start
>        name-description ( RO):
>              subtask_of ( RO):<not in database>
>                subtasks ( RO):
>             resident-on ( RO): e9dc1da9-178b-4a98-8dd2-571a920cd4cc
>                  status ( RO): pending
>                progress ( RO): 0.000
>                    type ( RO):<none/>
>                  result ( RO):
>                 created ( RO): 20101015T11:03:04Z
>                finished ( RO): 19700101T00:00:00Z
>              error_info ( RO):
>      allowed_operations ( RO): Cancel
>
>
> My next question: how can I know what happens? Where to look next?
> dmesg, daemon.log, messages does not contain any valuable information.
>
> I filter xensource.log but it only contain connection about task
> querying.
>
> How can I found what prevent VM starts?
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users