[Linux-cluster] failover domain and service start
Paras pradhan
pradhanparas at gmail.com
Thu Nov 21 23:42:05 UTC 2013
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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