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Practical Example: Highly Available Apache Web Service with Heartbeat 1. Lab Environment Two RHEL/CentOS hosts: node-a – 192.168.1.130 node-b – 192.168.1.129 A floating virtual IP (VIP) 192.168.1.131/24 will be managed by Heartbeat and bound to whichever node is active. 2. Install Apache on Both Nodes sudo yum install -y httpd 3. Prepare the ...

Cluster Architecture and Prerequisites To establish a robust High Availability (HA) environment using Heartbeat, a two-node architecture is configured on CentOS 6.8 (x86_64). The setup requires distinct network interfaces for management traffic and heartbeat signals to ensure reliable failover mechanisms. Primary Node (ha-node-primary): Menag ...

Official documentation: https://book.open-falcon.org/zh_0_2/usage/nodata.html API reference: http://open-falcon.org/falcon-plus/ Agent Overview Once the agent is deployed on a machine and properly configured with heartbeat (hbs) and transfer settings, it automatically starts collecting metrics and sending data to the backend. Host Groups and Ma ...

Physical Network Configuration Guidelines Avoid direct crossover cabling between nodes; use dedicated switches instead. Isolate the private interconnect (heartbeat network) from the public application network. If sharing a switch is unavoidable, enforce VLAN segmentation. Oracle explicitly prohibits crossover cables for Clusterware internal ...