db mysql

MySQL Configuration master-slave synchronization MySQL master server configurationVim/etc/my.cnf[mysqld]datadir=/var/lib/mysqlsocket=/var/lib/mysql/mysql.socksymbolic-links=0lower_case_table_names=1sql_mode=No_engine_substitution,strict_trans_tables#

Mysql Proxy Lua Read and write separation settingsI. Read-Write separation instructions Read-Write separation (Read/write splitting), the basic principle is to let the main database processing transaction increment, change, delete operation

The process for MySQL synchronization is roughly as follows:1. The primary server (master) writes the Change event (update, delete, table structure change, and so on) to the binary log (master log).2. The IO thread from the server (slave) gets the

Redis is an open source database that uses memory data structures for storage and can be used as a database, cache, and message broker. Redis supports rich data structures, such as: string ( Strings ), hash (), Hashs list ( Lists ), collection (),

In enterprises, the high availability of databases has always been the top priority of enterprises, many small and medium-sized enterprises are using MySQL master-slave scheme, a master and many from, read and write separation, but single-master

First, the primary server-related configuration1. Create a sync account and specify the server address[Email protected] ~]mysql-uroot-pMysql>use MySQLMysql>grant replication Slave on * * to ' testuser ' @ ' 192.168.1.102 ' identified by ' 12345678 ';

mysql master/slave hot standby configurationThe MySQL version of both servers is 5.5.41master:192.168.3.119slave:192.168.3.120MySQL master server configuration:1. Create a user for backupGrant Replication Slave on * * to ' slave ' @ ' 192.168.3.120 '

Directory1. mysql Data structure2. mysql Common function3. mysql Operation flow4. ExampleMySQL is an open source code of small relational database management system, small size, fast, low overall cost, open source. MySQL has the following features:(1

In enterprises, the high availability of databases has always been the top priority of enterprises, many small and medium-sized enterprises are using MySQL master-slave scheme, a master and many from, read and write separation, but single-master

Master 1 Configuration:Configuration file:Server-id=1Auto_increment_offset=1 #自动递增初始值为1auto_increment_increment=2 #自动递增跨度为2, in order to ensure that the synchronization of primary keys does not create a

Centos6.5 MySQL master-slave sync MySQL version 5.6.25Primary server: centos6.5 ip:192.168.1.101From server: centos6.5 ip:192.168.1.102First, the primary server-related configuration1. Create a sync account and specify the server address[Email

Python Select Mysql Date conversion string, converted to dictionaryPython read the data format is not normal JSON, read out, directly is the dictionaryPython 2.7ImportMySQLdb fromMySQLdbImportConverters as Covconv=cov.conversions.copy () conv[246] =

Recently studied MySQL database master-slave configuration, here to record the learning process to prevent forgetting. Don't say much nonsense.The advantages of the MySQL database master-slave configuration: This allows for read-write separation, or

MySQL server's master-slave configuration, which allows for read-write separation, or can be recovered from the standby library after the main library has been hung offNeed two machines, install MySQL, two machines in a connected LANHost a:192.168.1.

Application scenario: Can realize database backup, read and write separation, improve performance and so on.Test environment: 2 centos7.2 with minimized installation①158.158.41.200 (Master) master②158.158.41.201 (from) slave　　　　　 version of database

The main master synchronization configuration and the master-slave configuration is very similar, only need a little modification on it, the master-slave configuration in doubt to view the previous article.Before the Docker operation, set up the

Original Author Blog http://www.cnblogs.com/nliao/archive/2010/09/09/1822660.htmlFirst look at the structure－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－The following code block is used to connect to the database of the communication process, to

MySQL has a particularly high chance of downtime in the production environment, so we only install MySQL on the machine and not use it. The database itself is also a very easy place to create bottlenecks. Master: Master (for writing data) Slave:

Preparatory work:Configuration of Master machine and slave machine1, modify the master machine MySQL configuration file my.cnf, the file in/etc directoryAdd the following fields to the [mysqld] configuration segmentServer-id=1Log-bin=logBINLOG-DO-DB=

Record itOriginal: http://www.rjfw.com.cn/qamain/prevView.action?id=40482017200000031MySQL master-slave configuration (clear idea)MySQL master-slave configuration. My humble opinion is tested in the following environment:Operating system where the