[Linux-cluster] failover domain and service start

Paras pradhan pradhanparas at gmail.com
Fri Nov 22 16:37:00 UTC 2013 

Well thats seems to theoretically correct. But right now my cluser has
use_virsh=0 and I don't have any issue untill my mebmers on the failover
domains are offline. So wondering what is it that clusvcadm -e is looking
when I don't use virsh .




On Fri, Nov 22, 2013 at 10:05 AM, emmanuel segura <emi2fast at gmail.com>wrote:

> 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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>>>>>>>>>>>>>> https://www.redhat.com/mailman/listinfo/linux-cluster
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
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>>>>>>>>>
>>>>>>>>>
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>>>>>
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>
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