Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you what are the vip kid interview questions. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

1. Under what circumstances do you divide the database, under what circumstances do you divide the table, and where are the advantages?

Extending the threading model in mycat

two。 Source code hashMap, structure, what is the disturbance function, when to insert the linked list, insert at the beginning or tail, what is the structure of the linked list.

3. How to ensure that 1000 threads start synchronously, describe AQS and explain the structure and common methods

4. Talk about redis, how to solve the cache consistency problem of clusters, and why redis performance is so high.

The classes under the 5.concurrent package

What happens to the cancel method of future.

What's the difference after 1.8?

6. What is high concurrency, the strategy of dealing with high concurrency, the mode of communication between threads, the implementation and comparison of distributed locks.

7. Whether you usually look at the source code, describe the process of spring from loading xml to building bean.

8. Describe the process of class loading and what is parental delegation

9.JVM optimization, thread escape, method escape? Synchronous elimination, what problems will occur, how to avoid, escape analysis can certainly improve performance? What is scalar substitution?

10. Describe the heap memory structure, what scenarios will there be memory leaks, PermGen space and OutOfMemoryError, how to troubleshoot?

These are the vip kid interview questions that the editor shared for you. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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