Thank you, Tomas. I know how to remove a constraint " pcs constraint colocation remove <source resource id> <target resource id> ". Is there a command to delete a constraint colocation set?
-----邮件原件----- 发件人: Users [mailto:[email protected]] 代表 Tomas Jelinek 发送时间: 2018年5月15日 15:42 收件人: [email protected] 主题: Re: [ClusterLabs] How to change the "pcs constraint colocation set" Dne 15.5.2018 v 05:25 范国腾 napsal(a): > Hi, > > We have two VIP resources and we use the following command to make them in > different node. > > pcs constraint colocation set pgsql-slave-ip1 pgsql-slave-ip2 > setoptions score=-1000 > > Now we add a new node into the cluster and we add a new VIP too. We want the > constraint colocation set to change to be: > pcs constraint colocation set pgsql-slave-ip1 pgsql-slave-ip2 > pgsql-slave-ip3 setoptions score=-1000 > > How should we change the constraint set? > > Thanks Hi, pcs provides no commands for editing existing constraints. You can create a new constraint and remove the old one. If you want to do it as a single change from pacemaker's point of view, follow this procedure: [root@node1:~]# pcs cluster cib cib1.xml [root@node1:~]# cp cib1.xml cib2.xml [root@node1:~]# pcs -f cib2.xml constraint list --full Location Constraints: Ordering Constraints: Colocation Constraints: Resource Sets: set pgsql-slave-ip1 pgsql-slave-ip2 (id:pcs_rsc_set_pgsql-slave-ip1_pgsql-slave-ip2) setoptions score=-1000 (id:pcs_rsc_colocation_set_pgsql-slave-ip1_pgsql-slave-ip2) Ticket Constraints: [root@node1:~]# pcs -f cib2.xml constraint remove pcs_rsc_colocation_set_pgsql-slave-ip1_pgsql-slave-ip2 [root@node1:~]# pcs -f cib2.xml constraint colocation set pgsql-slave-ip1 pgsql-slave-ip2 pgsql-slave-ip3 setoptions score=-1000 [root@node1:~]# pcs cluster cib-push cib2.xml diff-against=cib1.xml CIB updated Pcs older than 0.9.156 does not support the diff-against option, you can do it like this: [root@node1:~]# pcs cluster cib cib.xml [root@node1:~]# pcs -f cib.xml constraint list --full Location Constraints: Ordering Constraints: Colocation Constraints: Resource Sets: set pgsql-slave-ip1 pgsql-slave-ip2 (id:pcs_rsc_set_pgsql-slave-ip1_pgsql-slave-ip2) setoptions score=-1000 (id:pcs_rsc_colocation_set_pgsql-slave-ip1_pgsql-slave-ip2) Ticket Constraints: [root@node1:~]# pcs -f cib.xml constraint remove pcs_rsc_colocation_set_pgsql-slave-ip1_pgsql-slave-ip2 [root@node1:~]# pcs -f cib.xml constraint colocation set pgsql-slave-ip1 pgsql-slave-ip2 pgsql-slave-ip3 setoptions score=-1000 [root@node1:~]# pcs cluster cib-push cib.xml CIB updated Regards, Tomas _______________________________________________ Users mailing list: [email protected] https://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 _______________________________________________ Users mailing list: [email protected] https://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
