[one-users] device onebrxxxx alreay exists can't create bridge with the same name

[Jaime Melis]

Hi,

I think you are right. I've created a new ticket to fix this for OpenNebula
4.6:
http://dev.opennebula.org/issues/2573

cheers,
Jaime



On Thu, Dec 12, 2013 at 5:30 PM, cmcc.dylan <dx10years at 126.com> wrote:

>
> Hi.
>   I don't use >= 4.0. But I think the code has a little problem, that is,
> we should add a lock for "get_interfaces" not for "create_bridge".
>
>
>
>
> At 2013-12-12 17:05:03,"Jaime Melis" <jmelis at c12g.com> wrote:
>
> Hi,
>
> not sure I follow, but given that the rules are idempotent if the bridge
> doesn't exist it will be created, and if it does, it won't.
>
> Have you tried this with ONE >= 4.0 and still fails?
>
> regards,
> Jaime
>
>
> On Thu, Dec 12, 2013 at 4:32 AM, cmcc.dylan <dx10years at 126.com> wrote:
>
>> Hi，Jainme.
>>
>>   I think curruent codes don't have solved the bug complelely. The key
>> problems the the following snippets are executed  parallel.
>> class OpenNebulaHM < OpenNebulaNetwork
>>     XPATH_FILTER = "TEMPLATE/NIC[VLAN='YES']"
>>     def initialize(vm, deploy_id = nil, hypervisor = nil)
>>         super(vm,XPATH_FILTER,deploy_id,hypervisor)
>>         @bridges = get_interfaces
>>     end
>>
>> so bridges variable maybe have the same name bridge. because bridge is a
>> ruby instance variable，not a ruby class variable.
>>
>>
>>
>> At 2013-12-12 01:53:18,"Jaime Melis" <jmelis at c12g.com> wrote:
>>
>> Hi,
>>
>> yes, this is a known bug which is already solved in OpenNebula >= 4.0 by
>> implementing locking mechanisms.
>> http://dev.opennebula.org/issues/1722
>>
>> cheers,
>> Jaime
>>
>>
>>
>>
>> On Wed, Dec 11, 2013 at 9:46 AM, cmcc.dylan <dx10years at 126.com> wrote:
>>
>>>  Hi everyone！
>>>
>>>    I find a problem when we create two or more instances on one host at
>>> the same time，we meet the error "device onebrxxxx alreay exists can't
>>> create bridge with the same name".
>>>    The reason is that instances all try to create their bridge，although
>>> they check whether or not their birdge is existed. because it's at the same
>>> time, they all get a result that their bridge is not existed, and then they
>>> create it.
>>>    But when they really create, the same bridge has already been created
>>> by other instances.
>>>
>>>     Has the problem been fixed now？ I use opennebula-3.8.1.
>>>
>>>    Look forward your answers!
>>>
>>>    dylan.
>>>
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opennebula.org
>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>
>>>
>>
>>
>> --
>> Jaime Melis
>> C12G Labs - Flexible Enterprise Cloud Made Simple
>> http://www.c12g.com | jmelis at c12g.com
>>
>> --
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>
>
> --
> Jaime Melis
> C12G Labs - Flexible Enterprise Cloud Made Simple
> http://www.c12g.com | jmelis at c12g.com
>
> --
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-- 
Jaime Melis
C12G Labs - Flexible Enterprise Cloud Made Simple
http://www.c12g.com | jmelis at c12g.com

--

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