Micro-services are not meant to be scaled down version of SOA (Service oriented architecture). They should be based on business context and should not be created based on technical refactoring viewpoint.
Ideal platforms for microservices would be cloud were you can easily scale any one component we want. Example if we notice that one business component (say UI) need support 1000 instances and rest every thing can be 1 or 2 instances then decompose the UI component into a microservice
Cloud platforms and dockers are good area to experiment with micro-services as scaling, and management of multiple versions can be easily accomplished there.
Few no's for microservices -
- No clustering should be planned
- Try to make integrations independent of programming language (rest, http, xml)
- Avoid single database for multiple microservices
Finally one word of caution, managing multiple microservices is very important. Otherwise after 5 to 6 microservices people loose track of which version is integrated to what.
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