Osbkca

Problem A high capacity load balancing solution is needed to address current and future needs to provide highly available and scalable services. Solution Linux Virtual Server (LVS) provides the means of building scalable and high performing virtual cluster server. Heartbeat 2 can be used to feather increase the availability of the virtual services. Limitations Iptables redirection to avoid ARP problems with direct routing load balancing is not covered. Heartbeat 2 SSH STONITH is used without quorumd or pingd. Very limited "tiereaker" capability. Concepts LVS hides real servers behind a virtual IP and load balances the incoming request across all cluster nodes based on a scheduling algorithm. It implements transport-layer load balancing inside the Linux kernel, also called Layer-4 switching. There are 3 types of LVS load balancing: Network Address Translation (NAT) Incoming requests arrive at the virtual IP and are forwarded to the real servers by changing the