mysql replication status

server's relay log, then, the SQL thread reads the relay log and replays it on the slave server to achieve MySQL replication. As shown in: MySQL Replication The whole process is reflected on the slave server. You can view three sets of log information on the slave server with the following command:

In this section, we will learn how to grant user authorization and master-slave replication in Mysql. The following describes the advantages of Mysql master-slave replication: 1. if a problem occurs on the master server, you can quickly switch to the service provided by the slave server. 2. query operations can be

MySQL Semisynchronous Replication In addition to the built-in asynchronous replication mechanism, MySQL5.5 also provides interfaces to support semi-synchronous replication. Disadvantages of asynchronous replication: MySQL

Tags: completing the Generate Plugins Status tool parameters MySQL database size1 OverviewSemi-synchronous replication refers to a subset of host synchronous replication, and another part of the host asynchronous replicationThe logic of synchronization is that the user writes to the primary server, the primary service

用mysql-uroot-p123456-s/data/3306/mysql.sock-e "Show Master Status"#锁表后, you must open a new SSH window, export all data of the database, if the amount of data is large (more than 50G), and allow downtime, can be parked directly packaged data files for migration, so faster#新开一个窗口, back up the database to migrate the data to the library[Email protected] ~]# mkdir/server/backup-p[Email protected] ~]# mysqldump

row, the value is to the newly added library, and then restart the mysql services;4, then through the Linux command to enter MySQL, to see if the slave is properly started, if the boot has an exception to handle, to ensure normal startup; 5, the newly added library to the main master replication chain, test can be;V. How to remove a library from the existing ma

;flush privileges; 5) See if authorization is successful Mysql> Show grants for [email protected]' 192.168.1.1 '; 6) Mutual Bin-log information A road executes the following command: Mysql> Show master status; Route B executes the following command:

Label:sizecacherequestsiatres over revmyscreated mysql> show global status; Can list MySQL server running various status values, my personal preferred usage is show status like ' query value% '; One, slow query mysql> show v

database and grant permissions Using replication slave, for example: mysql> GRANT REPLICATION SLAVE ON *.* TO 'slave001'@'192.168.0.99' IDENTIFIED BY '123456';mysql> FLUSH PRIVILEGES; (2) modify the configuration file my. cnf of the primary database, enable BINLOG, and set the value of server-id. After modification,

replication, we understand basic information about the binary log files of the master server, which must be used in slave server settings, this information includes the name of the binary file of the master server and the location of the current log record, so that the slave server can know where to start the replication operation. You can use the following operations to view the binary log data of the mas

master status" or "mysqldump"-primary data display. In this case, you need to use the log file of the specified slave and the value after the location is null string ('') and 4. Now you have the information you need to copy the binary logs that are read from the beginning at the correct position. Set master-slave connection information Mysql> CHANGE MASTER -> MASTER_HOST = 'master _ host_name ', ->

Function Permission Monitor user MMM (Multi-Master replication manager of MYSQL) monitors the health status of each Master REPLICATION CLIENT Agent user MMM proxy is used to set read-only attributes, replication master, etc. SUPER,

Mysql master-slave replication practicesAsynchronous master-slave Replication Master-slave deployment steps: Backup and Restoration Use mysqldump or xtrabackup Restore the existing basic data of the master database to the slave Database Authorization Grant replication slave on *.* An accoun

for the backup data directory [root @ centos191 ~] # Innobackupex -- apply-log -- use-memory = 4G/var/lib/mysql/data [root @ centos191 ~] # Chown-R mysql: mysql/var/lib/mysql/data Slave 191 stop MySQL, MySQL configuration, and th

continue copying when the statement returns an error in any option value.For example:-Slave-skip-errors = 255.2,1053-Slave-skip-errors = all Vi. Configuration replication without stopping services Method 1:If you have backed up the MASTER server at a certain time point and recorded the binary log name and offset of the corresponding snapshot (output using the show master status Command), follow these steps

main library creates a user who synchronizes replicationMariaDB [(none)]> grant replication slave on *.* to [emailprotected]‘192.168.%.%‘ identified by ‘123456‘; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> flush privileges; Query OK, 0 rows affected (0.00 sec) View the Bin-log logging location node for the main libraryThe Bin-log Logging location node of the main library is specified when connecting to the main library when using the chan