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Pacemaker : Install
2015/06/23 |
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Install and Configure Linux High-Availability Cluster tool "Pacemaker".
This example is based on the environment like follows. Configure basic cluster environment on here.
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+----------------------+ | +----------------------+
| [ Node01 ] |10.0.0.51 | 10.0.0.52| [ Node02 ] |
| node01.srv.world +----------+----------+ node02.srv.world |
| | | |
+----------------------+ +----------------------+
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| [1] | Install Pacemaker like follows on all Nodes. |
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[root@node01 ~]#
yum -y install pacemaker pcs # set password for cluster admin user [root@node01 ~]# passwd hacluster Changing password for user hacluster. New password: Retype new password: passwd: all authentication tokens updated successfully. |
| [2] | If Firewalld is running, allow service port. |
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[root@node01 ~]# firewall-cmd --add-service=high-availability --permanent success [root@node01 ~]# firewall-cmd --reload success |
| [3] | Configure like follows on a Node. |
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# establish authorization [root@node01 ~]# pcs cluster auth node01.srv.world node02.srv.world Username: hacluster Password: node01.srv.world: Authorized node02.srv.world: Authorized # configure cluster [root@node01 ~]# pcs cluster setup --name ha_cluster node01.srv.world node02.srv.world Destroying cluster on nodes: node01.srv.world, node02.srv.world... node01.srv.world: Stopping Cluster (pacemaker)... node02.srv.world: Stopping Cluster (pacemaker)... node01.srv.world: Successfully destroyed cluster node02.srv.world: Successfully destroyed cluster Sending 'pacemaker_remote authkey' to 'node01.srv.world', 'node02.srv.world' node02.srv.world: successful distribution of the file 'pacemaker_remote authkey' node01.srv.world: successful distribution of the file 'pacemaker_remote authkey' Sending cluster config files to the nodes... node01.srv.world: Succeeded node02.srv.world: Succeeded Synchronizing pcsd certificates on nodes node01.srv.world, node02.srv.world... node02.srv.world: Success node01.srv.world: Success Restarting pcsd on the nodes in order to reload the certificates... node02.srv.world: Success node01.srv.world: Success # start srvices for cluster [root@node01 ~]# pcs cluster start --all node02.srv.world: Starting Cluster... node01.srv.world: Starting Cluster... # enable cluster [root@node01 ~]# pcs cluster enable --all node01.srv.world: Cluster Enabled node02.srv.world: Cluster Enabled # show status [root@node01 ~]# pcs status cluster Cluster Status: Stack: corosync Current DC: node01.srv.world (version 1.1.16-12.el7_4.2-94ff4df) - partition with quorum Last updated: Mon Oct 15 10:22:12 2017 Last change: Mon Oct 15 10:21:57 2017 by hacluster via crmd on node01.srv.world 2 nodes configured 0 resources configured PCSD Status: node01.srv.world: Online node02.srv.world: Online[root@node01 ~]# pcs status corosync
Membership information
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Nodeid Votes Name
1 1 node01.srv.world (local)
2 1 node02.srv.world
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