[Pacemaker] Two virtual machines start when they fail in "Live migration".

[Yuusuke IIDA]

Hi, Andrew

(2011/02/09 23:55), Andrew Beekhof wrote:
> 2011/2/7 Yuusuke IIDA<iidayuus at intellilink.co.jp>:
>> Hi,
>>
>> I am going to manage the virtual machine in environment of Pacemaker-1.0.10.
>>
>> However, the problem that two virtual machines are started occurs when a
>> transition graph of "Live Migration" was canceled on the way.
>>
>> I show a procedure to generate below a problem.
>>
>> 1. I was going to let you do "Live Migration" of a virtual machine from host 1
>> to host 2.
>>
>> 2. In the middle of "Live Migration", monitor by pingd broke down with host 2,
>> and an attribute changed.
>>
>> 3. A virtual machine is done start of with host 3 by the management of the cluster.
>> Because the virtual machine which moved in migrate_to with host 1 then works, I
>> am in a condition that two virtual machines start.
>>
>> This phenomenon thinks that it is revised in Pacemaker-1.1.
>
> I'm not at all surprised that the 1.1 behavior was better, we put a
> lot of work into it recently.
>
>> If this phenomenon is a bug, I want you to revise it in Pacemaker-1.0.
>
> The necessary patch is quite large and invasive, I don't feel its
> appropriate to backport into 1.0.
Will it be not to be able to recommend it in pacemaker-1.0 to move a resource by 
setting of "allow_migrate=true"?

Best Regards,
Yuusuke IIDA

>
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Yuusuke Iida
Mail: iidayuus at intellilink.co.jp
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