Load-Balancing Clusters

• Receive incoming client requests

• Determine appropriate server (round robin, #of connections, system utilization metrics, static bindings)

• Allow servers to migrate in/out of pool

• Linux Virtual Server - (LVS)

  • Highly effective for static web content. Deficient for dynamic content.
  • TurboLinux Cluster - LVS derivative
  • Red Hat High Availability Server - (formerly Piranha) Administrative GUI & packaging of LVS
  • VA Linux UltraMonkey - packaging & docs on LVS

Notes: