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Learning OpenStack High Availability by Rishabh Sharma

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Chapter 8. Failure Scenario and Disaster Recovery

In this chapter, we will cover the context of recovering from different failure scenarios. This includes network partition split-brain, automatic failover, and geo-replication.

We are going to learn the following topics in this chapter:

  • Network partition split-brain
  • Automatic failover
  • Geo-replication

Network partition split-brain

When two or more replicated copies of a file in two different clusters become divergent and independent from each other, then such a situation is called split-brain. In this situation, the members of the two clusters assume that the other nodes are dead even though they are not dead in their own cluster. Because of this network failure, there is no way to avoid this situation ...

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