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This article introduces an important role in microservices: gateway. As for how to select a gateway, Alibaba has not yet selected a gateway. Of course, it has chosen Spring cloud Gateway. After all, it is my son. The article contents are as follows: Why do I need a gateway? In the traditional monomer architecture, only one service is ope ...

Introduction to balanced tree Preface: because \ (fhq \) is better than \ (splay \) in all aspects, mainly due to the small code size, the topic of this solution is \ (fhq\) \(treap \), that is, non rotating \ (treap \). Template Template question Definition and nature Balanced tree is a data structure composed of binary search tree and heap, s ...

1, Definition of inner class You can put the definition of one class inside the definition of another class, which is the inner class. 2, Type of inner class In Java, inner classes are mainly divided into member inner classes, local inner classes, anonymous inner classes and static inner classes. 1. Member internal class Member interna ...

sketch Action message communication is very similar to service message communication. The service has goal s and result s corresponding to the request and response respectively. In addition, there is more feedback in the action. In some scenarios, when it takes a long time to respond after receiving a request and an intermediate value is r ...

A basic union search set There are only two operations for the basic union query set, one is to find ancestors, and the other is to merge int find(int x) { if(x==pre[x]) return x; else return pre[x]=find(pre[x]); } void join(int x,int y) { pre[find(x)]=find(y); } Two weighted union search set   for weighted concurrent sear ...

Introduction Carbon * inherits PHP's * Datetime * class and jsonseriable. Therefore, the methods not covered in * carbon * but implemented in * Datetime * and JsonSerializable * can be used. class Carbon extends DateTime implements JsonSerializable { //code here } The Carbon class is declared under the Carbon namespace. Instead of ...

Experimental task 1 This experimental task includes 4 sub tasks. Practice one by one, observe and verify in combination with practice, and answer questions. Task 1-1 Click to view task1_1.asm assume ds:data, cs:code, ss:stack data segment db 16 dup(0) data ends stack segment db 16 dup(0) stack ends code segment start: mov ax, dat ...

1, Foreword 2, CAS operation 2.1 AtomInteger class ensures atomicity Both synchronized and Lock are pessimistic locks. Here we learn a CAS operation, which is a lightweight Lock. There is an ABA problem in CAS operation. If the shared variables are one-way accumulation, this problem does not exist. If there are addition and subtraction, ...

1, Background          I have accumulated a lot of commands related to the server in my work, which are commonly used. Record and share them with you. I hope it will be helpful. 2, Common commands 1. vim enters the file, exits the editing mode, executes DD to delete a whole line, and 20dd to delete 20 ...

Binary search basis 1. Preface In the past, I always felt that I had to go through all the concepts before I could start to brush the questions. I didn't know that practice was the shortcut to master knowledge, rather than forgetting to recite it. To learn knowledge, we need to settle down and go step by step, otherwise we will be punished fo ...