On Wed, 2020-10-21 at 23:01 +0300, Andrei Borzenkov wrote: > 21.10.2020 18:20, Jiaqi Tian1 пишет: > > Hi, > > Thanks for your reply. I'm using crmsh, are you refering to crm > > cluster add node > > command? It gives error on my cluster, when I'm trying to add > > ceha01 to a > > cluster by running crm cluster add ceha01. > > "ERROR: cluster.join: Abort: Cluster is currently active. Run this > > command on a > > node joining the cluster. > > Connection to ceha01 closed." > > Can you explain how this command works in this case, otherwise do > > you have any > > other suggestions? > > this command expects that node is in clean state and no cluster > related > services or configuration are present; it checks whether corosync > service is active. To use this command you need to undo changes you > did > manually. > > > BTW, > > 1. Is there an issue updating cib.xml with cibadmin command when > > Pacemaker is > > running? > > Like - your changes may be overwritten by pacemaker?
cibadmin by default goes through the CIB manager rather than directly modifying the file, so there's no problem there. (You could set CIB_file in the environment to change that, but presumably that's not happening here.) > > 2. Do you have idea where(which config file) crm_node command > > retrieves its data? > > CIB > > > Thanks, > > Jiaqi Tian > > > > ----- Original message ----- > > From: Andrei Borzenkov <arvidj...@gmail.com> > > Sent by: "Users" <users-boun...@clusterlabs.org> > > To: Cluster Labs - All topics related to open-source clustering > > welcomed > > <users@clusterlabs.org> > > Cc: > > Subject: [EXTERNAL] Re: [ClusterLabs] Adding a node to an > > active cluster > > Date: Wed, Oct 21, 2020 10:46 AM > > On Wed, Oct 21, 2020 at 5:03 PM Jiaqi Tian1 < > > dylan.jiaqi.t...@ibm.com> wrote: > > > > > > Hi, > > > I'm trying to add a new node into an active pacemaker > > cluster with > > resources up and running. > > > After steps: > > > 1. update corosync.conf files among all hosts in cluster > > including the > > new node > > > 2. copy corosync auth file to the new node > > > 3. enable corosync and pacemaker on the new node > > > 4. adding the new node to the list of node in > > /var/lib/pacemaker/cib/cib.xml > > > > > > > Do you mean you edited CIB while pacemaker was running? > > > > > Then I run crm status, the new node is displayed as offline. > > It will not > > become online, unless we run restart corosync and pacemaker on > > all nodes in > > cluster. But this is not what we want, since we want to keep > > existing nodes > > and resources up and running. Also in this case crm_node -l > > doesn't list the > > new node. > > > > > > So my question is: > > > > > > 1. Is there another approach to have the existing nodes > > aware of the new > > node and have crm status indicates the node is online while > > keeping other > > nodes and resources up and running? > > > > I think you are better off using high level tools like pcs or > > crmsh. > > They automate all steps needed to make cluster recognize new > > node > > online. > > > > > 2. which config file crm_node command reads? > > > > > > > CIB > > _______________________________________________ > > Manage your subscription: > > https://lists.clusterlabs.org/mailman/listinfo/users > > > > ClusterLabs home: https://www.clusterlabs.org/ > > > > > > > > _______________________________________________ > > Manage your subscription: > > https://lists.clusterlabs.org/mailman/listinfo/users > > > > ClusterLabs home: https://www.clusterlabs.org/ > > > > _______________________________________________ > Manage your subscription: > https://lists.clusterlabs.org/mailman/listinfo/users > > ClusterLabs home: https://www.clusterlabs.org/ -- Ken Gaillot <kgail...@redhat.com> _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
