BE Freq Asked Questions

1. how to build Global transaction ?
2. consideration when build a distributed redis lock module ?
3. how to optimize a SQL query ? how to do such via execution plan?
4. spring boot cloud main components ?
5. how to make sure DB data consistent ?
6. how to use redis cache and DB (e.g. mysql), when redis may fail ?
7. interface, class which been used at compile time, run time, and relation with byte code