[ClusterLabs] Clusvcadm -Z substitute in Pacemaker

Ken Gaillot kgaillot at redhat.com
Wed Jul 13 15:32:17 UTC 2016


On 07/13/2016 09:56 AM, emmanuel segura wrote:
> enabled=false works with every pacemaker versions?

It was introduced in Pacemaker 1.0.2, so realistically, yes :)

> 2016-07-13 16:48 GMT+02:00 Ken Gaillot <kgaillot at redhat.com>:
>> On 07/13/2016 05:50 AM, emmanuel segura wrote:
>>> using pcs resource unmanage leave the monitoring resource actived, I
>>> usually set the monitor interval=0 :)
>>
>> Yep :)
>>
>> An easier way is to set "enabled=false" on the monitor, so you don't
>> have to remember what your interval was later. You can set it in the
>> op_defaults section to disable all operations at once (assuming no
>> operation has "enabled=true" explicitly set).
>>
>> Similarly, you can set is_managed=false in rsc_defaults to unmanage all
>> resources (that don't have "is_managed=true" explicitly set).
>>
>>> 2016-07-11 10:43 GMT+02:00 Tomas Jelinek <tojeline at redhat.com>:
>>>> Dne 9.7.2016 v 06:39 jaspal singla napsal(a):
>>>>>
>>>>> Hello Everyone,
>>>>>
>>>>> I need little help, if anyone can give some pointers, it would help me a
>>>>> lot.
>>>>>
>>>>> In RHEL-7.x:
>>>>>
>>>>> There is concept of pacemaker and when I use the below command to freeze
>>>>> my resource group operation, it actually stops all of the resources
>>>>> associated under the resource group.
>>>>>
>>>>> # pcs cluster standby <node>
>>>>>
>>>>> # pcs cluster unstandby <node>
>>>>>
>>>>> Result:  This actually stops all of the resource group in that node
>>>>> (ctm_service is one of the resource group, which gets stop including
>>>>> database as well, it goes to MOUNT mode)
>>>>
>>>>
>>>> Hello Jaspal,
>>>>
>>>> that's what it's supposed to do. Putting a node into standby means the node
>>>> cannot host any resources.
>>>>
>>>>>
>>>>> However; through clusvcadm command on RHEL-6.x, it doesn't stop the
>>>>> ctm_service there and my database is in RW mode.
>>>>>
>>>>> # clusvcadm -Z ctm_service
>>>>>
>>>>> # clusvcadm -U ctm_service
>>>>>
>>>>> So my concern here is - Freezing/unfreezing should not affect the status
>>>>> of the group. Is there any way around to achieve the same in RHEL-7.x as
>>>>> well, that was done with clusvcadm on RHEL 6?
>>>>
>>>>
>>>> Maybe you are looking for
>>>> # pcs resource unmanage <resource>
>>>> and
>>>> # pcs resource manage <resource>
>>>>
>>>> Regards,
>>>> Tomas
>>>>
>>>>>
>>>>> Thanks
>>>>>
>>>>> Jaspal
>>
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> 
> 
> 





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