1 Interview questions
What is the concurrency competition problem of redis? how to solve this problem? Do you know the CAS scheme of Redis transactions?
2 Test site analysis
This is also a very common problem online, that is, when multiple clients write a key concurrently at the same time, the data that should have arrived first arrives later, causing the data version to be wrong. Or multiple clients acquire a key at the same time, modify the value and then write it back. As long as the order is wrong, the data is wrong.
And redis has its own CAS optimistic locking scheme that naturally solves this problem.
3 Detailed
- Redis concurrency competition problems and solutions
