[Linux-cluster] failover domain and service start

emmanuel segura emi2fast at gmail.com
Fri Nov 22 16:05:30 UTC 2013 

If you used virt-install, i think you need use virsh, the cluster uses xm
xen command if you got use_virsh=0 and virsh if you got use_virsh=1 in your
cluster config


2013/11/22 Paras pradhan <pradhanparas at gmail.com>

> I use virt-install to create virtual machines. Is there a way to debug why
> clusvcadm -e vm:guest1 is failing? vm.sh  seems to use virsh and my
> cluster.conf has use_virsh=0
>
>
> Thanks
>
> Paras.
>
>
> On Nov 21, 2013 5:53 PM, "emmanuel segura" <emi2fast at gmail.com> wrote:
>
>> but did you configure your vm with xen tools or using virt-manager?
>>
>>
>> 2013/11/22 Paras pradhan <pradhanparas at gmail.com>
>>
>>> Well no i don't want to use virsh.   But as we are debugging with virsh
>>> now i found a strange issue.
>>>
>>> I exported an xml file and imported to all nodes . Ran
>>>
>>>
>>> ---
>>> name="guest1" path="/vms_c"
>>>
>>> export OCF_RESKEY_name="guest1" ; OCF_RESKEY_path="/vms_c"
>>>
>>> set -x
>>> /usr/share/cluster/vm.sh start
>>> set +x
>>>
>>> --
>>> vm starts now. BUT from a cluster service : cluvscam -e vm:guest1 , same
>>> error.
>>>
>>>
>>> So if i populate all my domains' config files to all my cluser nodes and
>>> make use_virsh=1, then the issue is resolved. But this is a lot of work for
>>> those who have hundreds of vm.
>>>
>>> vm.start uses virsh . Is there a way to tell him not use virsh?
>>>
>>>
>>> Thanks
>>> Paras.
>>>
>>>
>>> On Thu, Nov 21, 2013 at 5:19 PM, emmanuel segura <emi2fast at gmail.com>wrote:
>>>
>>>> if you are using virsh for manage your vms, change this in your
>>>> cluster.conf
>>>>
>>>> from
>>>> use_virsh="0"
>>>> to
>>>> use_virsh="1"
>>>>
>>>>
>>>> 2013/11/22 Paras pradhan <pradhanparas at gmail.com>
>>>>
>>>>> I think i found the problem.
>>>>>
>>>>> virsh list --all does not show my vm . This is because it was created
>>>>> on another node. and another node has it. Now I want to start the service
>>>>> on a different node in which it was not created or where virsh list --all
>>>>> does not have an entry. Is it possible to create this entry using a xen
>>>>> config file?Looks like this is now a Xen issue rather than a linux-cluster
>>>>> issue . :)
>>>>>
>>>>> Paras.
>>>>>
>>>>>
>>>>>
>>>>> On Thu, Nov 21, 2013 at 4:58 PM, emmanuel segura <emi2fast at gmail.com>wrote:
>>>>>
>>>>>> 1:did you verify your xen livemigration configuration?
>>>>>> 2: where you vm disk reside?
>>>>>> 3: can you see your vm defined on every cluster node with xm list?
>>>>>>
>>>>>>
>>>>>> 2013/11/21 Paras pradhan <pradhanparas at gmail.com>
>>>>>>
>>>>>>> This is what I get
>>>>>>>
>>>>>>> Hypervisor: xen
>>>>>>> Management tool: virsh
>>>>>>> Hypervisor URI: xen:///
>>>>>>> Migration URI format: xenmigr://target_host/
>>>>>>> Virtual machine guest1 is error: failed to get domain 'guest1'
>>>>>>> error: Domain not found: xenUnifiedDomainLookupByName
>>>>>>>
>>>>>>> <debug>  virsh -c xen:/// start guest1
>>>>>>> error: failed to get domain 'guest1'
>>>>>>> error: Domain not found: xenUnifiedDomainLookupByName
>>>>>>>
>>>>>>> ++ printf '\033]0;%s@%s:%s\007' root vtst3 '~'
>>>>>>> [root at cvtst3 ~]# set +x
>>>>>>> + set +x
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>>
>>>>>>>  I am wondering why it failed to get domain .
>>>>>>>
>>>>>>>
>>>>>>> -Paras.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Thu, Nov 21, 2013 at 4:43 PM, emmanuel segura <emi2fast at gmail.com
>>>>>>> > wrote:
>>>>>>>
>>>>>>>> yes
>>>>>>>>
>>>>>>>>
>>>>>>>> 2013/11/21 Paras pradhan <pradhanparas at gmail.com>
>>>>>>>>
>>>>>>>>> Well it is guest1. Isn't it?.
>>>>>>>>>
>>>>>>>>> <vm autostart="1" domain="myfd1" exclusive="0" max_restarts="0"
>>>>>>>>> name="guest1" path="/vms_c" recovery="restart" restart_expire_time="0"
>>>>>>>>> use_virsh="0"/>
>>>>>>>>>
>>>>>>>>> It is a vm service if it matters.
>>>>>>>>>
>>>>>>>>> -Paras.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Thu, Nov 21, 2013 at 4:22 PM, emmanuel segura <
>>>>>>>>> emi2fast at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> use the servicename you defined in your cluster.conf
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> 2013/11/21 Paras pradhan <pradhanparas at gmail.com>
>>>>>>>>>>
>>>>>>>>>>> Says:
>>>>>>>>>>>
>>>>>>>>>>> Running in test mode.
>>>>>>>>>>> No resource guest1 of type service found
>>>>>>>>>>>
>>>>>>>>>>> -Paras.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On Thu, Nov 21, 2013 at 4:07 PM, emmanuel segura <
>>>>>>>>>>> emi2fast at gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> rg_test test /etc/cluster/cluster.conf start service guest1
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> 2013/11/21 Paras pradhan <pradhanparas at gmail.com>
>>>>>>>>>>>>
>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>
>>>>>>>>>>>>> My failover domain looks like this:
>>>>>>>>>>>>>
>>>>>>>>>>>>> <failoverdomain name="myfd1" nofailback="1" ordered="1"
>>>>>>>>>>>>> restricted="0">
>>>>>>>>>>>>>                                 <failoverdomainnode
>>>>>>>>>>>>> name="vtst1" priority="1"/>
>>>>>>>>>>>>>                                 <failoverdomainnode
>>>>>>>>>>>>> name="vtst3" priority="2"/>
>>>>>>>>>>>>>                                 <failoverdomainnode
>>>>>>>>>>>>> name="vtst2" priority="3"/>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>                         </failoverdomain>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> I have vm service that uses this failover domain. If my node
>>>>>>>>>>>>> vtst1 is offline, the service doesnot start on vtst3 which is 2nd in the
>>>>>>>>>>>>> priority.
>>>>>>>>>>>>>
>>>>>>>>>>>>> I tried to start it with: clusvcadm -e vm:guest1   and even
>>>>>>>>>>>>> with -F and -m option.
>>>>>>>>>>>>>
>>>>>>>>>>>>> All i see is this error:
>>>>>>>>>>>>>
>>>>>>>>>>>>> Nov 21 15:40:29 vtst3 clurgmgrd[13911]: <notice> start on vm
>>>>>>>>>>>>> "guest1" returned 1 (generic error)
>>>>>>>>>>>>> Nov 21 15:40:29 vtst3 clurgmgrd[13911]: <warning> #68: Failed
>>>>>>>>>>>>> to start vm:guest1; return value: 1
>>>>>>>>>>>>> Nov 21 15:40:29 vtst3 clurgmgrd[13911]: <notice> Stopping
>>>>>>>>>>>>> service vm:guest1
>>>>>>>>>>>>> Nov 21 15:40:35 vtst3 clurgmgrd[13911]: <notice> Service
>>>>>>>>>>>>> vm:guest1 is recovering
>>>>>>>>>>>>> Nov 21 15:40:35 vtst3 clurgmgrd[13911]: <warning> #71:
>>>>>>>>>>>>> Relocating failed service vm:guest1
>>>>>>>>>>>>> Nov 21 15:40:35 vtst3 clurgmgrd[13911]: <notice> Service
>>>>>>>>>>>>> vm:guest1 is stopped
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> How do I debug?
>>>>>>>>>>>>> Thanks!
>>>>>>>>>>>>> Paras.
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
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>>>>>>>>>>>>> Linux-cluster at redhat.com
>>>>>>>>>>>>> https://www.redhat.com/mailman/listinfo/linux-cluster
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> --
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>>>>>>>>>>>>
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>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
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>>>>>>>>>>
>>>>>>>>>> --
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>>>>>>>>>
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>>>>>>>>
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>>>>>>>>
>>>>>>>> --
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>>>>>>
>>>>>>
>>>>>> --
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>>>>>>
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>>>>>
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>>>>
>>>>
>>>>
>>>> --
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>>>>
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>>
>>
>>
>> --
>> esta es mi vida e me la vivo hasta que dios quiera
>>
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esta es mi vida e me la vivo hasta que dios quiera
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