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Re: [Linux-cluster] CMAN & CLVM clvmd startup timed out



Technically, yes. Practically, no.

You need to know if your configuration is working. The best way to do
that is to simulate a failure and watch to make sure that the fence
actions happen.

I would strongly recommend scheduling down time to do this.

digimer

On 01/07/2013 02:55 AM, Rainer Schubert wrote:
> Hi,
> 
> thank you for the fast answer. Now I have one question:
> 
> - It is possible to integrate the fencing-service on a working cluster?
> 
> I have working virtualisation enviroment with 50 VMs, so i can't take
> them down.
> 
> best regards
> 
> 
> 
> 2013/1/4 Digimer <lists alteeve ca>:
>> As Emmanuel said, you need fencing.
>>
>> Please read this:
>>
>> https://alteeve.ca/w/2-Node_Red_Hat_KVM_Cluster_Tutorial#Concept.3B_Fencing
>>
>> digimer
>>
>> On 01/04/2013 02:26 AM, Rainer Schubert wrote:
>>> Hi,
>>>
>>> my cluster.conf:
>>>
>>> <?xml version="1.0"?>
>>> <cluster name="my_lvm_cluster" config_version="2">
>>>                <clusternodes>
>>>                <clusternode name="mynode1" nodeid="1">
>>>                </clusternode>
>>>
>>>                <clusternode name="mynode2" nodeid="2">
>>>                </clusternode>
>>>                <clusternode name="mynode3" nodeid="3">
>>>                </clusternode>
>>>              <clusternode name="mynode4" nodeid="4">
>>>                </clusternode>
>>>                </clusternodes>
>>> </cluster>
>>>
>>> 2013/1/3 Digimer <lists alteeve ca>:
>>>> On 01/03/2013 08:21 AM, Rainer Schubert wrote:
>>>>> Hi,
>>>>>
>>>>> I have created a small CMAN-Cluster with 3 Nodes and a CLVM
>>>>> configuration. Now, I want to add a new node (mynode4). CMAN works
>>>>> fine, cman_tool shows all members:
>>>>>
>>>>> # cman_tool nodes
>>>>> Node  Sts   Inc   Joined               Name
>>>>>    1   M    408   2013-01-03 14:00:57  mynode1
>>>>>    2   M    408   2013-01-03 14:00:57  mynode2
>>>>>    3   M    408   2013-01-03 14:00:57  mynode3
>>>>>    4   M    404   2013-01-03 14:00:56  mynode4
>>>>>
>>>>>
>>>>> cman_tool services (on mynode4)
>>>>>
>>>>> fence domain
>>>>> member count  4
>>>>> victim count  0
>>>>> victim now    0
>>>>> master nodeid 1
>>>>> wait state    none
>>>>> members       1 2 3 4
>>>>>
>>>>>
>>>>> corosync:
>>>>>
>>>>> corosync-cfgtool -s
>>>>> Printing ring status.
>>>>> Local node ID 4
>>>>> RING ID 0
>>>>>         id      = 10.10.10.13
>>>>>         status  = ring 0 active with no faults
>>>>>
>>>>> Everything looks fine, from my site. No I will start clvmd
>>>>>
>>>>> :~# /etc/init.d/clvm start
>>>>> Starting Cluster LVM Daemon: clvm clvmd startup timed out
>>>>>
>>>>> The CLVM runs into a time out.
>>>>>
>>>>> My System:
>>>>>
>>>>>  cat /etc/debian_version
>>>>> 6.0.6
>>>>>
>>>>> # lvm version
>>>>>   LVM version:     2.02.66(2) (2010-05-20)
>>>>>   Library version: 1.02.48 (2010-05-20)
>>>>>   Driver version:  4.22.0
>>>>>
>>>>> dpkg -l |grep clvm
>>>>> ii  clvm                                2.02.66-5
>>>>> Cluster LVM Daemon for lvm2
>>>>>
>>>>>  dpkg -l |grep cman
>>>>> ii  cman                                3.0.12-2
>>>>> Red Hat cluster suite - cluster manager
>>>>> ii  libcman3                            3.0.12-2
>>>>> Red Hat cluster suite - cluster manager libraries
>>>>>
>>>>> Have anybody a idea, what running false?
>>>>>
>>>>> best regards
>>>>>
>>>>
>>>> Can you post your cluster.conf please? Obfuscate as little as you can
>>>> please.
>>>>
>>>> --
>>>> Digimer
>>>> Papers and Projects: https://alteeve.ca/w/
>>>> What if the cure for cancer is trapped in the mind of a person without
>>>> access to education?
>>
>>
>> --
>> Digimer
>> Papers and Projects: https://alteeve.ca/w/
>> What if the cure for cancer is trapped in the mind of a person without
>> access to education?


-- 
Digimer
Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without
access to education?


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