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This article mainly introduces "what interview questions does Redis have". In daily operation, I believe many people have doubts about what interview questions Redis has. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful for you to answer the questions of "what interview questions does Redis have?" Next, please follow the editor to study!

1. What is Redis?

2. What are the advantages of Redis over memcached?

3. Which data types does Redis support?

4. What are the main physical resources consumed by Redis?

5. What is the full name of Redis?

6. What kinds of data elimination strategies does Redis have?

7. Why doesn't Redis officially provide the Windows version?

8. What is the maximum storage capacity of a string type value?

9. Why does Redis need to put all the data in memory?

10. What should the Redis cluster solution do? What are the plans?

11. Under what circumstances will the Redis cluster solution cause the entire cluster to become unavailable?

12. There are 2000w data in MySQL and only 20w data in redis. How to ensure that the data in redis are all hot data?

13. What are the suitable scenarios for Redis?

14. What Java clients are supported by Redis? Which one is officially recommended?

15. What is the relationship between Redis and Redisson?

16. What are the advantages and disadvantages of Jedis and Redisson?

17. How does Redis set and verify passwords?

18. What is the concept of Redis hash slot?

19. What is the master-slave replication model of Redis cluster?

20. Will any writes be lost in the Redis cluster? Why?

21. How are Redis clusters replicated?

22. What is the maximum number of nodes in a Redis cluster?

23. How does the Redis cluster select the database?

24. How to test the connectivity of Redis?

25. What is the use of pipes in Redis?

26. How to understand Redis transactions

27. What are the commands related to Redis transactions?

28. How to set the expiration time and permanent validity of Redis key?

29. How does Redis optimize memory?

30. How does the Redis recycling process work?

31. What algorithm is used for Redis recycling?

32. How does Redis insert a large amount of data?

33. Why do you want to do Redis partition?

34. Do you know what Redis partitioning schemes are available?

35. What are the disadvantages of Redis partitioning?

36. How to expand the persistent data and cache of Redis?

37. Should distributed Redis be done in the early stage or on a later scale? Why?

38. What is Twemproxy?

39. What clients support consistent hashing?

40. How is Redis different from other key-value storage?

41. How is the memory footprint of Redis?

42. What are the ways to reduce the memory usage of Redis?

43. What command is used to view Redis usage and status information?

44. What happens when Redis runs out of memory?

45. Redis is single-threaded, how to improve the utilization of multi-core CPU?

46. How many keys can be stored in a Redis instance? List, Set, Sorted Set, how many elements can they store at most?

47. Redis common performance problems and solutions?

48. What kinds of persistence methods does Redis provide?

49. How to choose the appropriate persistence method?

50. Will Redis take effect in real time without restarting the configuration?

At this point, the study of "what are the interview questions for Redis" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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