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Piranha is one of the clustering products from Red Hat Inc., it includes the IPVS kernel code, cluster monitoring tool and web-based cluster configuration tool.

The piranha monitoring tool has two main features:

  • Heartbeating between active and backup load balancers.
  • Checking availability of the services on each of real servers.

The piranha monitoring tool uses one process to heartbeat UDP messages between active and backup load balancers, and fork service monitoring processes so that each process is to monitoring one service at a real server.


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