[Linux-cluster] CMAN & CLVM clvmd startup timed out
Digimer
lists at alteeve.ca
Mon Jan 7 15:46:55 UTC 2013
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 at 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 at 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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