Found a total of 94 related content
Analyze the usage scenarios of mysql master-slave synchronization and asynchronous
Article Introduction:The reason for conducting this research is mainly to address two unsolved doubts encountered before: a. There is a system online. The semi-synchronous state often changes from semi-synchronous to asynchronous, and then immediately returns to semi-synchronous. The specific reason is unknown. Although I have guessed it before, I am still not completely sure. b. Some time ago, due to business scenario requirements, we conducted a cross-machine room asynchronous replication test. When mysql write qps is very high, it is found that many logs have not had time to be sent to the slave library. That is, the speed of binlog log generation in the main library is greater than the speed of transmission to the slave library. This speed difference always exists, so when the main library continues to be high When binlog was generated under pressure, more and more binlogs were not sent to the slave library, but the network traffic at that time
2024-01-05
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722
What is mysql master-slave synchronization?
Article Introduction:The meaning of mysql master-slave synchronization is backup. The master library (Master) synchronizes the writes in its own library to its slave library (Slave). When some unpredictable conditions occur in the master library and the entire server cannot be used, due to There is also a copy of the data in the slave database, so the data can be restored quickly without causing or reducing data loss.
2020-10-05
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4663
Summarize and organize MySQL semi-synchronous replication configuration
Article Introduction:This article brings you relevant knowledge about MySQL, mainly sorting out issues related to semi-synchronous replication configuration. In semi-synchronous mode, the main database transaction must ensure that at least one slave database receives the log before it can be completed. Therefore, you can It is guaranteed that when the main database goes down, the submitted transactions have been transferred to the slave database to ensure that the data is not lost. Let’s take a look at it together. I hope it will be helpful to everyone.
2022-07-04
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1794
mysql主从同步怎么实现
Article Introduction:MySQL 主从同步是一种数据复制机制,可将主服务器的数据更改复制到从服务器。 实现步骤包括: 创建复制用户,启用二进制日志记录,获取二进制日志信息,在从服务器上创建复制通道,检查从服务器状态。
2024-05-22
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448
How to skip errors in mysql master-slave synchronization
Article Introduction:Mysql master-slave synchronization skip error method: 1. Skip the specified number of transactions, the code is [mysql>SET GLOBAL SQL_SLAVE_SKIP..]; 2. Modify the mysql configuration file and use the [slave_skip_errors] parameter to skip all errors.
2021-01-06
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5855
What are the reasons why mysql master and slave are synchronized?
Article Introduction:The reasons for mysql master-slave synchronization: 1. Network delay; 2. The load of the master and slave machines is inconsistent; 3. The "max_allowed_packet" setting is inconsistent; 4. The key value starting from the key's auto-increment key is inconsistent with the auto-increment step setting ;5. Database versions are inconsistent, etc.
2022-01-05
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5206
How to implement semi-sync replication in MySQL
Article Introduction:1. Introduction to semi-synchronization: After executing the transaction submitted by the client, the MASTER node does not immediately return the result to the client, but waits for at least one SLAVE node to receive and write it to the relaylog before returning it to the client. Compared with asynchronous replication, semi-synchronization improves data security, but also causes a certain degree of delay. This delay is at least one TCP round trip time. Therefore, semi-synchronous replication is best used in low-latency networks. MySQL has supported semi-synchronous replication since version 5.5. Semi-synchronous replication was improved in version 5.7.2; the original semi-synchronous strategy was AFTER_COMMIT and the improved strategy is AFTER_SYNC. The difference between the two lies in the SLAVE section.
2023-05-26
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654
Talk about the solution to MySQL master-slave error
Article Introduction:Solution to MySQL master-slave error MySQL master-slave replication is a very important function in the MySQL database. It can realize data synchronization between different servers, thereby achieving the purpose of data backup and load balancing. However, master-slave replication errors due to various reasons are also common. These errors may lead to data loss, data errors and other problems. This article will introduce some solutions to MySQL master-slave replication errors to help you avoid or solve these problems. 1. Master-slave replication stops synchronizing When MySQL master-slave replication stops working, it is most obvious
2023-04-17
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483
Build mysql master-slave server under linux
Article Introduction:How to build a mysql master-slave server under Linux: 1. First configure the server; 2. Then restart the mysql service; 3. Finally, create an account and password for master-slave synchronization.
2020-01-30
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3084
How to delete master-slave in mysql
Article Introduction:How to delete master-slave in mysql: 1. Use the "stop slave;" statement to stop the master-slave synchronization of the slave server; 2. Use the "RESET MASTER;" statement to reset the master service; 3. Use the "reset slave;" statement to reset the slave Service; 4. Restart the database.
2022-02-24
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4161
How to set up master-slave synchronization in MYSQL database
Article Introduction:1. Configure the main database master: 192.168.1.132 slave: 192.168.1.1331) authorize the slave database GRANTREPLICATIONSLAVEON*.*to'repl'@'192.168.1.132'identifiedby'test123456'; FLUSHPRIVILEGES; 2) Modify the main database configuration file , enable binlog, and set server-id. The mysql service must be restarted every time the configuration file is modified.
2023-05-26
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2502
What are the similarities and differences between the working principle of MySQL master-slave replication and load balancing technology?
Article Introduction:MySQL master-slave replication is a commonly used database replication technology. It achieves synchronous data replication by using one MySQL database server as the master server (Master) and other MySQL servers as slave servers (Slave). The master server is responsible for receiving and processing client write operations, and writing these write operations in binary form to the binary log (BinaryLog). The slave server reads the binary log on the master server and re-executes the operations therein to achieve data
2023-09-09
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507
How to configure master-slave replication of MySQL database?
Article Introduction:How to configure master-slave replication of MySQL database? Master-slave replication of MySQL database is a common data backup and high availability solution. By configuring master-slave replication, you can synchronize data from one MySQL server (master server) to another (slave server), thereby improving database availability and performance. The following describes how to configure master-slave replication in a MySQL database and provides corresponding code examples. Make sure the MySQL server is installed and started. First, make sure MySQL is installed on your system.
2023-07-13
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1782
How to configure Mysql multiple masters and one slave in Centos7
Article Introduction:Business scenario: Several of the company's main businesses are independent and placed on different database servers, but one business needs to be associated with multiple business libraries for joint query statistics. At this time, it is necessary to synchronize different business database data to a slave database for statistics. According to the mysql master-slave synchronization principle, the solution of multiple slaves and one master is used. The main library uses the innodb engine, and the slave library uses the myisam engine to open multiple instances and synchronize the data of multiple instances to the same directory, and access the data of other instances in one instance through flushtables. Solution: 1. Use the innodb engine for the main database, set sql_mode to no_auto_create_user2, and enable multiple
2023-06-01
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952
How to solve MySQL master-slave replication error
Article Introduction:The MySQL database is a critical component of modern software development, especially when we need to process large amounts of data and queries. MySQL provides a master-slave replication mechanism that allows us to copy data from the master server to multiple slave servers to achieve high availability and high-performance applications. However, when using master-slave replication, we often encounter some errors. This article will introduce how to solve MySQL master-slave replication errors. 1. What is MySQL master-slave replication? In MySQL, master-slave replication is a data replication technology that allows us to copy a My
2023-04-19
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1165
What is mysql master-slave replication
Article Introduction:In mysql, master-slave replication means that data can be copied from a MySQL database server master node to one or more slave nodes. Asynchronous replication is used by default. The benefits of using master-slave replication: 1. Let the master database be responsible for writing and the slave database be responsible for reading. When the master database locks the table, the normal operation of the business can be ensured by reading from the slave database; 2. Hot backup of data can be done; 3. Expanding the architecture can reduce the frequency of disk I/O access and improve the I/O performance of a single machine.
2022-06-27
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4311
MySql data distribution: how to implement master-slave replication mechanism
Article Introduction:MySql is a popular relational database management system. Data replication is widely used to achieve data backup, load balancing and high availability. In MySql, you can use the master-slave replication mechanism to achieve data distribution, allowing multiple systems to access the same data. This article will introduce how to implement the master-slave replication mechanism in MySql. 1. The basic concept of the master-slave replication mechanism. The master-slave replication mechanism is an important feature of the MySql database. It can help realize data distribution and backup. By synchronizing the data on the main server
2023-06-15
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772