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RPC in combination with Protobuf Here we use a demand scenario to learn relevant knowledge points: Suppose there is an Order module in a system. Other modules want to realize the remote project call of RPC. The Order information can be obtained according to the Order ID and timestamp. If the acquisition is successful, the correspondin ...

1, Background introduction Log management in the project is one of the basic functions. Different users and scenarios have specific requirements for logs, so different strategies need to be used for log collection and management. If it is a distributed project, the log system design is more complex. Log type: business operation, information p ...

catalogue 1. Title Description 2. Problem solving analysis 3. Code implementation 1. Title Description We have n buildings, numbered from 0 to n - 1. There are several employees in each building. As it is the season to change buildings, some employees want to live in another building. Give you an array of requests, where requests[i] = [ ...

Foreword: we all know that HashMap is thread unsafe and is not recommended to be used in multi-threaded environment, but where is its thread unsafe? This paper will decrypt this problem. 1.jdk1. HashMap in 7 In jdk1 Many optimizations have been made to HashMap in 8. Here, we first analyze it in jdk1 7, I believe you all know in jdk1 7. ...

⭐ Introduction ⭐ ️ Hello, I'm Zhijie. There is only one month left for the countdown of the provincial competition of the Blue Bridge Cup. If you have practiced the real problem for nearly seven or eight years, you can obviously feel that the difficulty of the Blue Bridge Cup is becoming more and more difficult. Although it is far from being ...

preface Congratulations to all the friends who read this article for successfully unlocking the advanced features of RabbitMQ series Contents of dead letter queue 🎁 Through this article, you will clearly understand: what is dead letter? What is a dead letter queue? How to use the dead letter queue? etc. 😄 Finally, Xiaoming will he ...

I'm kangarooking, not my brother's brother. An Internet worm "gua" cow, sincerely share experience and technical dry goods. I hope my article is helpful to you. Pay attention to me and make a little progress every day ❗ ❗ ❗ preface This article is applicable to the following groups: The old fellow who wanted to change jobs rec ...

1, What is the builder model Builder Pattern, also known as Builder Pattern, is an object construction pattern. It can abstract the construction process of complex objects (abstract categories), so that different implementation methods of this abstract process can construct objects with different representations (attributes). Builder mode is ...

Glide's cache is divided into two modules, one is memory cache and the other is hard disk cache. The function of memory cache is to prevent duplicate data from being read; The function of hard disk cache is to prevent applications from repeatedly downloading and reading data from the network or other places. Cache Key of Glide The code that ...

1. Database yum -y install mysql mysql-server mysql-devel MySQL (client), MySQL-server (server), mysql-devel (library) Start MySQL:service mysql start Confirm installation success: mysql-u root-p View the database: show databases; Use the database: use mysql; Query from the user table for all users that can log in and the host that suppo ...