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Error type error The first is the most standard error in Go, which is actually an interface {}. As follows: type error interface {    Error() string} In daily engineering, we only need to create any structure and implement the error method, which can be regarded as the error error type. As follows: type errorString struct {    s string}func (e  ...

Go language operation Redis Redis is also frequently used in project development. This paper introduces the basic use of Go redis Library in Go language. 1, Redis introduction Redis is an open source in memory database. Redis provides a variety of different types of data structures. Problems in many business scenarios can be naturally mapped to ...

gRPC Learning Notes 1. Introduction to gRPC gRPC It is a high performance, universal open source RPC framework designed by Google for mobile application development based on HTTP/2 protocol standards, based on ProtoBuf(Protocol Buffers) serialization protocol, and supports many development languages. [External chain picture transfer fail ...

Builder pattern introduce Builder Pattern uses multiple simple objects to build a complex object step by step Definition: Separate the construction of a complex object from its representation sothat the same construction process can create different representations. (separate the construction of a complex object from its representati ...

Go function, array, pointer, structure, slice 10, Functions 1. Format: func Function name(parameter list) return type{ } When there are multiple return values: func Function name(parameter list) (Return value 1 type,Return value 2 type,Return value 3 type){ } 2. Function parameters (1) Value passing; Go language uses value passing by def ...

Welcome to official account No. DailyOps I wish you a happy 2022 new year in advance~ Original text connection golang notes and documentation and go doc/godoc notes golang comments Single-Line Comments It is the most common and used annotation method, starting with / / and followed by comments. It can be a single line or after a state ...

Hello, I'm Zhang Jintao.I wrote an article before More elegant Kubernetes cluster event measurement scheme , Jaeger uses tracing to collect and display events in Kubernetes cluster. The final effect is as follows:When I wrote that article, I set up a flag to introduce the principle in detail. It's been a long time. Now it's the end of the year, ...

Preface - From Wan Junfeng Kevin The average delay of the service is basically about 30ms. One of the very big prerequisites is that we make extensive use of MapReduce technology, so that even if our service calls many services, it often depends only on the duration of the slowest request. For your existing services, you do not need to opti ...

sync.Pool can improve throughput in high concurrency scenarios, but improper use will lead to serious problems. Here is a detailed review of the problems encountered this time. # preface The problem of missing body always occurred in the test simulation environment before. After a long time of troubleshooting, the reason was finally found. Th ...

1, Method The methods in Golang act on the specified data type (that is, bind to the specified data type). Therefore, custom types can have methods, not just struct s. 2, Use of methods package main import "fmt" //Define a structure type Person struct { Name string } //Binding method to structure func (person Person) test() { person.Nam ...