[Linux-cluster] problems with clvmd

[Christine Caulfield]

On 18/04/11 14:38, Terry wrote:
> On Mon, Apr 18, 2011 at 3:48 AM, Christine Caulfield
> <ccaulfie at redhat.com>  wrote:
>> On 17/04/11 21:52, Terry wrote:
>>>
>>> As a result of a strange situation where our licensing for storage
>>> dropped off, I need to join a centos 5.6 node to a now single node
>>> cluster.  I got it joined to the cluster but I am having issues with
>>> CLVMD.  Any lvm operations on both boxes hang.  For example, vgscan.
>>> I have increased debugging and I don't see any logs.  The VGs aren't
>>> being populated in /dev/mapper.  This WAS working right after I joined
>>> it to the cluster and now it's not for some unknown reason.  Not sure
>>> where to take this at this point.   I did find one weird startup log
>>> that I am not sure what it means yet:
>>> [root at omadvnfs01a ~]# dmesg | grep dlm
>>> dlm: no local IP address has been set
>>> dlm: cannot start dlm lowcomms -107
>>> dlm: Using TCP for communications
>>> dlm: connecting to 2
>>>
>>
>>
>> That message usually means that dlm_controld has failed to start. Try
>> starting the cman daemons (groupd, dlm_controld) manually with the -D switch
>> and read the output which might give some clues to why it's not working.
>>
>> Chrissie
>>
>
>
> Hi Chrissie,
>
> I thought of that but I see dlm started on both nodes.  See right below.
>
>>> [root at omadvnfs01a ~]# ps xauwwww | grep dlm
>>> root      5476  0.0  0.0  24736   760 ?        Ss   15:34   0:00
>>> /sbin/dlm_controld
>>> root      5502  0.0  0.0      0     0 ?        S<      15:34   0:00


Well, that's encouraging in a way! But it's evidently not started fully 
or the DLM itself would be working. So I still recommend starting it 
with -D to see how far it gets.


Chrissie