mariadb multi master

MySQL Dual master Interoperability is the two MySQL server is the primary server, but also the other side of the slave server, so as to share a part of the master server write requests, because if it is a single master model, the data write can only be written to a MySQL server, while the dual master model can be writt

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Tags: User event server binary images sel use server code1. First build the master-slave Main environment: 192.168.1.117 From the environment: 192.168.1.123 A. First install the mariadb in the form of a binary package (negligible) B. Configuring variables for the environment Pass Match [Mysqld] Binlog-format=row Log-slave-updates=true Master-info-repository=table

Mariadb in fact, like MySQL, there is nothing different that is the name is not the same ~.~! Start ~ Previous experiment is a MARIADB single-machine multi-instance installation Dual instance Port 3307 Main Library, 3308 from library 3307 mysqld configuration of the primary instance [Mysqld2]port=3307socket=/tmp/mysql3307.sockpid-file=/tmp/mysql3307.pidmax_allowe

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The previous article thanks to "Mysql, MariaDB traditional master-slave cluster Configuration", the technology has been very mature. Starting from Mysql5.6 and MariaDB10.0, with the new master-slave scheme Gtid, but the two systems to this version of the branch, the implementation has been different, configuration methods are different, the following are describe

status; View the synchronization status, where the seconds_behind_master can see if the master node is behind and how much is behindView whether the From node is read only show global variables like ' read_only ';Log_slave_updates = 1 (the event that allows the repository to replay it is also logged to its own binary log, so that it is both a slave node and a master node)Sync_binlog =1 MySQL each time in t

rows Affected (0.00 sec) mysql> INSERT INTO HI_TB values (001, ' Bobu ');Query OK, 1 row Affected (0.00 sec) mysql> show databases;+ —————— –+| Database |+ —————— –+| Information_schema || hi_db || MySQL || Test |+ —————— –+4 rows in Set (0.00 sec) MySQL Query from server: mysql> show databases; + —————— –+| Database |+ —————— –+| Information_schema || hi_db | I ' M here, you see?| MySQL || Test | + —————— –+4 rows in Set (0.00 sec) Mysql> Use hi_dbDatabase changedMysql> select * from HI_TB; Vi

master node. When viewing the position (location) of the current binary log, you need to stop any database submission. You can use this coordinate point to tell the slave server to Start copying from a specific point. Execute the command "flush tables with read lock" on the master to force log writing and LOCK all TABLES. During this period, the session cannot be closed and the LOCK will be released once t

the server to the primary server to request binary information stored in the trunk log, after saving by the local SQL thread from the log application to the local disk file from the server. When this process is completed and returned from the server to confirm the results to the primary server, the primary server will return the results to the client. so-called asynchronous replication:when the primary server to write data, write to the local disk, write to the binary file log, write the binary

Tags: mariadb mariadb Master1./etc/my.cnf on the master nodeService-id=1Permissions of the MySQL authorized backup user in the main libraryGrant Replication Slave on * * to [e-mail protected] '% ' identified by ' password ';Export the whole library at the terminal to ensure database offset consistency join--master-data

Environment Master1/master2 System Ip Database version Master1 CentOS6.7 10.10.3.211 mariadb-10.1.19 Master2 CentOS6.7 10.10.3.212 mariadb-10.1.19 First, the configuration of Master1(1) Modify the Master1 configuration file/etc/my.cnf, as follows:Log-Bin= /Usr/Local/Mysqllogs/Binlogs/Master1-bin #启用二进制日志rel

/data3306Total 110632。。。。。。。。drwx------2 MySQL mysql 4096 may 01:16 database_3306。。。。。。。。[Email protected] ~]# ll/mariadb/data3307Total 110632。。。。。。drwx------2 MySQL mysql 4096 may 01:16 database_3307。。。。。。[Email protected] ~]# ll/mariadb/data3308Total 110632。。。。。。drwx------2 MySQL mysql 4096 may 01:16 database_3308。。。。。。################################################# # # Close Instance # # ##############

Basic informationServer 1:mariadb01 192.168.10.178Server 2:MARIADB02 192.168.10.179Operating system: CentOS 6.4Database version: MariaDB-10.3.7Master-Slave Relationship: MariaDB01-based, MariaDB02 fromMariaDB011. Modify the configuration fileVi/etc/my.cnf.d/server.cnfUnder [Mysqld], add the followingServer-id = 1Log-bin = Mysql-bin2. Restart the MySQL serviceService MySQL Restart3. View Master Status4. Crea

log file, from the server to the primary server to request binary information stored in the trunk log, after saving by the local SQL thread from the log application to the local disk file from the server. When this process is completed and returned from the server to confirm the results to the primary server, the primary server will return the results to the client. so-called asynchronous replication:when the primary server to write data, write to the local disk, write to the binary file log, w

"$mysql _sock"];then printf "MySQL is stopped...\n" exit else printf "stoping mysql...\n" ${cmd_path}/mysqladmi N-u ${mysql_user}-p${mysql_pwd}-S ${mysql_sock} Shutdown fi} function_restart_mysql () {printf ' restarting MyS Ql... \ n "Function_stop_mysql sleep 2 Function_start_mysql} case $ in start) function_start_mysql;; stop) Function_stop_mysql;; restart) Function_restart_mysql;; *) printf "Usage: ${mysql_basedir}/${port}/bin/mysqld {Start|stop|restart}\ n "Esac Copy to the corresponding d

Recently do slow SQL optimization, compare headaches, see slow SQL is full of some select count (*) or sum of aggregate statistics such as SQL, because my database is the traditional master-slave, or a master more from, such slow SQL directly in the database statistics, there is a certain impact on the line, And because of multiple DB master-slave, statistics som

MARIADB Multi-instance: Environment and ideas: centos7.4 Yum installation implementation. One version of MySQL is implemented via multiple ports Plan ports for 3 instances: 3306/3307/3308. Separate the respective configuration files, log files, PID, sockets. Install MARIADB:[[emailprotected] ~]#yum install