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Heartbeat

  • Monitoring
  • 17 July 2017 at 11:04 UTC
Heartbeat
  • Package name : heartbeat
  • Publisher : Linux-HA
  • Documentation : See the official documentation of Heartbeat
  • Categorie : Monitoring
  • OS : Linux
  • License : Free

Heartbeat is a Linux subsystem for high-availability under Linux.
For example : Heartbeat can be used with DRBD and Pacemaker.

With Heartbeat, your servers will send a packet to your other servers periodically to detect "in real-time" servers that would become inaccessible.
If a server sends no more packets, it means that this server is down or that its network card is failing.

Note that you will need 2 communication paths (or 2 network cards) to implement this technology in the best conditions.
This also applies to other high availability systems.

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