mysql replication setup

MySQL master-master replication, modifying table structure bitsCN.com online MySQL master-master replication, modifying the table structure online I always thought that the dual-master architecture could solve the mysql table online DDL requirements, but I had no practical

Mysql master-slave and master-slave replication configuration demonstration, mysql master-slave Experimental System: CentOS 6.6 _ x86_64 Prerequisites: Prepare the compiling environment in advance, and disable both firewall and selinux. Tutorial Description: There are two hosts in this experiment, and IP addresses are allocated as topology. Experimental software:

Three modes of MySQL replicationMySQL currently has three replication modes: asynchronous mode, semi-synchronous mode, and group copy mode, first understand how the three modes work.1. MySQL Asynchronous Replication (asynchronous replication)Asynchronous

Label:Business 0 Impact! How to skillfully use MySQL traditional replication technology in online environmentThis article I will not describe how to deploy a MySQL replication environment or keepalived+ dual-host environment, because this kind of installation and build the article has a lot of people are also very fami

the server parameters and their values:mysql> SHOW GLOBAL VARIABLES;mysql> SHOW SESSION VARIABLES;Note: Some of these parameters support run-time modification, will take effect immediately, some parameters are not supported, and can only be modified by modifying the configuration file, and restart the server program to take effect;Some parameter scopes are global and immutable, and some can provide individual settings for each user;to modify the valu

- Slave_io_running:yes - Slave_sql_running:yes the replicate_do_db: - replicate_ignore_db: - ... -... Note: The slave_io_running and slave_sql_running processes must be running normally, that is, the Yes state, otherwise the synchronization fails. These two judgments can be used to determine whether the server is hung off Here, the master-slave database setup work has been completed, you can create a new database and tables, insert and modify

MySQL-master-slave replication bitsCN.com MySQL replication is often used in the following environments: 1. avoid disaster through hot backup 2. generate reports Using the slave server to generate reports can greatly reduce the load on the master server. 3 debugging and auditing For example, check whether some queries

Background Introduction mysql5.5 previous version, MySQL master-slave replication is relatively simple Mysql5.6:gtid,multi-thread replicationMaster1 Enable binary Log log-bin = Master-binlog-bin-index = Master-bin.index2 Select a unique server IDServer-id = [0~2^32]3 Create a user with replication permissionsreplication Slave, copied from the nodereplication clie

Tags: mysql First, preparation (master and slave need to configure): yum-yinstallmysqlmysql-server #安装mysql yum-yinstallntpdate #安装时间同步 echo ' */1**** /usr/sbin/ntpdatentp1.aliyun.com>/dev/null ' >>/var/spool/cron/root #配置网络时间同步 servicemysqldstart #启动服务 chkconfig--addmysqld #添加为系统服务 chkconfigmysqldon #开启默认运行级别 Two, primary server configuration: The main profile defaults to:/etc/my.cnf [mysqld ] datadir=/

Rotten mud: Learn the principle of mysql database master-slave synchronous replication, mysql master-slave This article was sponsored by Xiuyi linfeng and first launched in the dark world. This article is partly reproduced on the Internet. MySQL Replication is a master-sla

Troubleshooting of mysql semi-synchronous replication and mysql Synchronization 1. BackgroundBy default, online mysql replication is asynchronous. In extreme cases, when switching between the master and slave databases, there is a certain probability that the slave database

AB replication (mysql synchronization) bitsCN.com Project Environment:All systems are cent OS 5.5Master server IP address: 192.168.19.172 (master)Slave server IP: 192.168.19.168 (slave)Both of them have set up mysql (the root user and password are empty)1: Set synchronization master and modify the mysql master configu

I. Replication architecture derivative historyBefore we talk about this feature, let's take a look at MySQL's replication architecture derivation history.In 2000, the MySQL 3.23.15 version introduced the replication. As a quasi-real-time synchronization method, replication i

This article mainly Introduces Multi-source replication in MySQL. the multi-source replication function has been added to MySQL since MySQL 5.7.2, for more information, see the latest version of Mysql5.7.2. Most of the improvements are in terms of database performance and

:0Last_SQL_Error:Replicate_Ignore_Server_Ids:Master_Server_Id:1Master_UUID:3743271b-aa6d-11e6-aa2e-080027e5f5ddMaster_Info_File:/mysqldata/master.infoSQL_Delay:0SQL_Remaining_Delay:NULLSlave_SQL_Running_State:Slavehasreadallrelaylog;waitingfortheslaveI/OthreadtoupdateitMaster_Retry_Count:86400Master_Bind:Last_IO_Error_Timestamp:Last_SQL_Error_Timestamp:Master_SSL_Crl:Master_SSL_Crlpath:Retrieved_Gtid_Set:Executed_Gtid_Set:Auto_Position:01rowinset(0.00sec) When Slave_IO_Running and Slave_ SQL _Ru

:1. Make sure that the MySQL version installed on the master and slave servers is the same, and preferably the latest stable version of MySQL.2. Set up a connection account for replication on the primary server. The account must be granted replication slave permissions. If the account is used for

problems, I converted the table engine of the database from MyISAM to the table of the InnoDB engine. DRBD + Heartbeat + MySQL refer to the previous working documents and the setup was successful. The error 1062 was reported when the replication environment was set up. The detailed process is as follows:In the initial stage, refer to the

With the built-in replication function of MySQL to optimize the availability of Soundbreak, we continuously play live audio and video 24 hours a day. Therefore, we cannot make convincing tests on the new replication features of MySQL. Through tests, we found that this feature can be used to maintain data synchronizatio

There are many mysql cluster architecture methods, and different architectures are implemented according to different requirements. Simply put, mysql replication is the replication function of Mysql. The modes include master-slaves, master-slaves, master-slaves, and so on ca

Problem about master/slave replication delay in mysql bitsCN.com When I interviewed mysqldba about the master-slave replication delay in mysql, I encountered a question: describes the implementation principle of the msyql replication mechanism and how to keep dropping the