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Active-Active / Active-Stand-by architectural |
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patterns are commonly used when we consider fail-over in server deployment design. |
Active-Active
Following is the simple example for your better understanding of Active-Active Architecture.
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- Round Robin (sometimes called "Next in Loop")
- Weighted Round Robin - as Round Robin, but some servers get a larger share of the overall traffic
- Random
- Source IP hash - if someone try DDoS attack from a same source IP, only the hashed server will be damaged
- URL hash
- Least connections, weighted least connections
- Least traffic
- Least latency
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