[ClusterLabs] DLM standalone without crm ?

Christine Caulfield ccaulfie at redhat.com
Mon Jun 27 07:04:42 UTC 2016


On 26/06/16 14:47, Lentes, Bernd wrote:
> 
> 
> ----- Am 26. Jun 2016 um 7:59 schrieb Ferenc Wágner wferi at niif.hu:
> 
>> "Lentes, Bernd" <bernd.lentes at helmholtz-muenchen.de> writes:
>>
>>> wferi at niif.hu writes:
>>>
>>>> "Lentes, Bernd" <bernd.lentes at helmholtz-muenchen.de> writes:
>>>>
>>>>> is it possible to have a DLM running without CRM?
>>>>
>>>> Yes. You'll need to configure fencing, though, since by default DLM
>>>> will try to use stonithd (from Pacemaker). But DLM fencing didn't
>>>> handle fencing failures correctly for me, resulting in more nodes
>>>> being fenced until quorum was lost,
>>>
>>> do you have a howto ? Or is there one on the net ?
>>
>> dlm-controld has both a SysV init script and a systemd service file, you
>> can use either one to start it (they take care of mounting configfs and
>> loading the necessary kernel modules).  Just start it on your nodes when
>> you have quorum.
> 
> Hi,
> 
> i don't have neither an init-script nor a systemd service file.
> The only packages i find in the repositories concerning dlm are:
> libdlm3-3.00.01-0.31.87
> libdlm-3.00.01-0.31.87
> And i have a kernel module for dlm.
> Nothing else.
> 
>


If you have that version of DLM then the cman package will have the
dlm_controld daemon and init scripts in it. With that version you can
run DLM without crm but not without cman. cman is required.

Chrissie





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