[ClusterLabs] Antw: Re: Ordering Sets of Resources

Ulrich Windl Ulrich.Windl at rz.uni-regensburg.de
Wed Mar 1 02:36:32 EST 2017


>>> Ken Gaillot <kgaillot at redhat.com> schrieb am 26.02.2017 um 20:04 in Nachricht
<dbf562ff-a830-fc3c-84dc-487b892fcba4 at redhat.com>:
> On 02/25/2017 03:35 PM, ivagal at libero.it wrote:
>> Hi all,
>> i have configured a two node cluster on redhat 7.
>> 
>> Because I need to manage resources stopping and starting singularly when
>> they are running I have configured cluster using order set constraints.
>> 
>> Here the example
>> 
>> Ordering Constraints:
>>   Resource Sets:
>>     set MYIP_1 MYIP_2 MYFTP MYIP_5 action=start sequential=false
>> require-all=true set MYIP_3 MYIP_4 MYSMTP action=start sequential=true
>> require-all=true setoptions symmetrical=false
>>     set MYSMTP MYIP_4 MYIP_3 action=stop sequential=true
>> require-all=true set MYIP_5 MYFTP MYIP_2 MYIP_1 action=stop
>> sequential=true require-all=true setoptions symmetrical=false kind=Mandatory
>> 
>> The constrait work as expected on start but when stopping the resource
>> don't respect the order.
>> Any help is appreciated
>> 
>> Thank and regards
>> Ivan
> 
> symmetrical=false means the order only applies for starting

>From the name (symmetrical) alone it could also mean that it only applies for stopping ;-)
(Another example where better names would be nice)

> 
> 
> _______________________________________________
> Users mailing list: Users at clusterlabs.org 
> http://lists.clusterlabs.org/mailman/listinfo/users 
> 
> Project Home: http://www.clusterlabs.org 
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf 
> Bugs: http://bugs.clusterlabs.org 








More information about the Users mailing list