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CentOS High Availability

You're reading from   CentOS High Availability Leverage the power of high availability clusters on CentOS Linux, the enterprise-class, open source operating system

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Product type Paperback
Published in Apr 2015
Publisher
ISBN-13 9781785282485
Length 174 pages
Edition 1st Edition
Tools
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Toc

Table of Contents (16) Chapters Close

Preface 1. Getting Started with High Availability FREE CHAPTER 2. Meet the Cluster Stack on CentOS 3. Cluster Stack Software on CentOS 6 4. Resource Manager on CentOS 6 5. Playing with Cluster Nodes on CentOS 6 6. Fencing on CentOS 6 7. Testing Failover on CentOS 6 8. Two-node Cluster Considerations on CentOS 6 9. Cluster Stack Software on CentOS 7 10. Resource Manager on CentOS 7 11. Playing with Cluster Nodes on CentOS 7 12. STONITH on CentOS 7 13. Testing Failover on CentOS 7 14. Two-node Cluster Considerations on CentOS 7 Index

Installing and configuring CMAN

You're almost there! Continue by installing the CMAN software on your cluster nodes. In the following screenshot, you can see the command used to install the CMAN software on the node-1 cluster node:

Installing and configuring CMAN

You must install the CMAN software on all cluster nodes. Once you've installed CMAN, create a new file, /etc/cluster/cluster.conf, with your favorite text editor. In the next screenshot, you can see the lines you must insert into this file. You can also download the file from cman-conf-1.txt.

Installing and configuring CMAN

Note

The config_version parameter is the version of the CMAN configuration file, and the name parameter is your preferred cluster name.

The debug parameter is set to off and should be turned on for debugging purposes.

The clusternodes section is where the cluster nodes are configured. The clusternode parameter is defined by a name parameter, which is the FQDN or short node name, and the nodeid parameter, which is the ID of the cluster node.

Distribute the /etc/cluster...

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