Distributed System Design

2018/12/22 |

Architecture

| Architecture

Distributed System Design

• https://en.wikipedia.org/wiki/Fallacies_of_distributed_computing
• http://www.hpcs.cs.tsukuba.ac.jp/~tatebe/lecture/h23/dsys/dsd-tutorial.html
• https://dzone.com/articles/understanding-the-8-fallacies-of-distributed-syste

The 8 Fallacies of Distributed Systems

1. The network is reliable.
   • Qutomatically retry
   • Queuing systems
2. Latency is zero.
   • bring back all the data you might need
   • move the data closer to the clients (CDN)
   • invert the flow of data (Pub/Sub)
3. Bandwidth is infinite.
   • DDD
   • CQRS
4. The network is secure.
   • TLS
   • DTLS
   • HTTPS
5. Topology doesn’t change.
   • DNS
   • discovery service
   • Service Bus
6. There is one administrator.
   • Everyone should be responsible for the release process
   • Logging and monitoring
   • Decoupling
   • Isolate 3rd party dependencies
7. Transport cost is zero.
   • The cost of the networking infrastructure
   • The cost of serialization/deserialization
     • SOAP or XML is more expensive than JSON
     • JSON is more expensive than binary protocols like Google’s Protocol Buffers
8. The network is homogeneous.
   • focus on standard protocols.
   • choose standard formats in order to avoid vendor lock-in