Detailed introduction to the logging system

This article summarizes and introduces the detailed information of the log system in MySQL. It is very detailed. Friends who need it can refer to it. Everyone who has done large-scale systems knows that the role of logs does not need to be underestimated. It is often used in projects. Later, when optimizing and upgrading the project, decisions on upgrading and optimizing were made based on the logs. So when learning MySQL, of course you can’t miss the logging part. The optimizations discussed in our interviews are all derived from logs. Systematically studying mysql logs can help us accurately locate problems and improve our work level. In addition, the following series of logs will focus on the operation and maintenance of DBA, systematically understand the configuration of all aspects of MySQL, know yourself and the enemy, and make MySQL a convenient data warehouse for you. 1. MySQL log type By default, all MySQL logs are stored in the database root directory as files: [root@roverliang data]# pwd /usr/local/webserver/extend_lib/mysql/data [root@rov

1. Sample code sharing that explains the details of the MySQL logging system

##Introduction: This article summarizes and introduces the detailed information of the logging system in MySQL. It is very detailed. Friends in need can refer to it

2. The 8 most commonly used Java logging frameworks by java programmers

##Introduction: As a As Java programmers, we have developed many Java applications, including desktop applications, WEB applications and mobile applications. However, the log system is essential for a mature Java application. During the development and debugging stages, logs can help us locate bugs better and faster

3.

Every wall has ears Observer Pattern (Observer Pattern)

Introduction: Login to the system must have been done by everyone, verify the user name If the password is used to log in successfully, the log system should record the login. If there is a login error, the security system should record the error, and the email system should also send relevant emails to the administrator, etc. This is like the login system being monitored by many people. Once there is any trouble, other systems will immediately learn about it. Then try using the observer pattern. The class diagram is as follows: Very simple pattern, implementation code: ##4.

Log system in the PHP framework

##Introduction:: This article mainly introduces the log system in the PHP framework Logging system, students who are interested in PHP tutorials can refer to it.

5. MVC with PHP (2)_PHP tutorial

Introduction: MVC with PHP (2). There are bugs in MVC with PHP (1). The biggest problem is the problem of the logging system. After completing this introduction, I will package all the corrected program source codes. I will not

here for the time being.

6. Logging system in the PHP framework, PHP framework logging system_PHP tutorial

Introduction: Logging system in the PHP framework, PHP Framework logging system. Logging system in the PHP framework, PHP framework logging system. Now I am working as a PHP backend development programmer in a company (our team does not have a front-end, and we will do front-end things when doing activities). I just started working in the company

7. log4php configuration file example

Introduction: log4php configuration file example Recently, a project planned to introduce log4php as the project's logging system, but found that the official explanation of the configuration file was too broad and difficult to understand. After working on it for two hours, I compiled a more flexible configuration file and shared it with everyone. The overall structure As follows: File name: product.cam.properties file content: log4php.threshold = WARN log4php.rootLog

[Related Q&A recommendations]:

#php - About the problem that kafka may lose messages?

Log - Is there a way to query on LINUX which user logged in from which IP and when executed what command?

mysql - Can friends recommend a distributed logging system? PHP language..Thank you

#php Is there any better logging system?

java - Can the logging system guarantee that the log will be written to the disk within 1 minute?

The above is the detailed content of Detailed introduction to the logging system. For more information, please follow other related articles on the PHP Chinese website!