postgresql multi master replication

Tags: blank target multi-threaded databaseA GTID explanation Official documents: Http://dev.mysql.com/doc/refman/5.6/en/replication-gtids.html in this document, we can know that the official definition of the global transaction ID is: GTID = source_id: transaction_id In MySQL 5.6, each of the GTID represents a database transaction. In the above definition, source_id represents the main library uuid (SERVER_

-running query statements or large transactions by looking at the slow query log or the show full Processlist commandProblem four: Design problems of master-slave replicationFor example, master-slave replication single-threaded, if the main library write concurrency too large, too late to transfer to the slave library, it will cause delay. Later versions of MySQL

Redis has a very powerful master-slave replication feature, and it also supports a master that can have multiple slave, while a slave can have multiple slave to form a powerful multi-level server cluster architecture. Three Redis instances are currently installed under the same window,Where primary service port 6379, f

First, MySQL master-slave principle 1, master-slave form(1) one Master one from(2) Primary master replication(3) A master many from the---extended system read performance, because the read is read from the library;(4)

## Admin Configuration#admin-address = 0.0.0.0:4041Admin-lua-script =/usr/lib64/mysql-proxy/lua/admin.luaAdmin-username = AdminAdmin-password = Admin650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M02/8C/29/wKioL1hkb0Cj7K_WAABtOefdyJA668.png-wh_500x0-wm_3 -wmp_4-s_394172906.png "title=" 18.png "alt=" Wkiol1hkb0cj7k_waabtoefdyja668.png-wh_50 "/>650) this.width=650; "Src=" Http://s1.51cto.com/wyfs02/M00/8C/2D/wKiom1hkb1zQH9deAABmvCBelhw967.png-wh_500x0-wm_3 -wmp_4-s_4033125086.png "title="

' password '-s/data/3307/mysql.sock-e "show slave status\g;" To determine if replication is successful, see if the following IO and SQL two threads are displayed as Yes status Slave_io_running:yes is responsible for reading the Binlog log from the library to the main library and writing it from the library's trunk log Slave_sql_runnint:yes Responsible for reading and relaying the log in binlog, converting the SQL statement after applying t

=1binlog-rows-query-log_events=1server-id=11report-port=3306port=3306log-bin= Mysql-bin.logdatadir=/mydata/datasocket=/tmp/mysql.sockreport-host=slave.magedu.com2, creating a replication user mysql> Grantreplicationslaveon*.*to[emailprotected]IDENTIFIEDBY ' Replpass '; Description: 172.16.100.7 is from the node server; If you want to authorize more nodes at once, you can modify it as needed; 3, to provide the initial data set lock Main table for the s

of how many bytes to the slave server, from the server records received to the primary server synchronization how many bytes, 15-7 synchronized 10086 bytes of dataIf the chain after the recovery, from the server to send Psync to the primary server, with the local replication offset, the master server compared to the local difference, it means that the master-sla

MySQL multi-instance for semi-synchronous replicationMySQL multi-instance for semi-synchronous replicationMain Library 1:192.168.40.150Main Library 2:192.168.40.161From a library (2 MySQL instances): 192.168.40.162One: Use "Show Master Status" in 192.168.40.161 and 192.168.40.150, respectively, to record the current copy locationAs shown belowMysql> Show

Tags: multi-source Replication Master-slave? Experimental environment System environmentView System version command: Cat/etc/redhat-release This experiment is compiled installation of MySQL, too many pits, not recommended in the future by the way of compiling installation Before starting MySQL, first execute the following command to create a lin

Tags: record afn vbo mysql extension Evolution pre original strongfirst, the Origin MySQL master-slave replication, read and write separation is the Internet with a lot of MySQL architecture, master-slave replication is the most important thing is that in a large number of concurrent data volume scenarios,

Tags: mysql5.7 multi-source replicationExperiment of MySQL5.7 Multi-source replicationEnvironment: node1: 192.168.2.171 Main Library 1 node3: 192.168.2.170 Main Library 2 node2: from Library for 192.168.2.172 Archive1, Node2 need to configure replication filter out MySQL library:Replicate_wild_ignore_table=mysql.%replicate_wild_ignore_table=test.%# # # 5.7 can

/Downloads/MySQL-5.6/ Mysql-shared-5.6.20-1.el7.x86_64.rpmwget http://dev.mysql.com/get/Downloads/MySQL-5.6/ mysql-embedded-5.6.20-1.el7.x86_64.rpm# Note that the above three items only download one item# Introduction to each RPM packageMysql-server:mysql# MySQL Official provides 7 rpm, of course not all packages are installed, according to their own needs to selectively install a few RPM packages just downloaded# generally installed Mysql-server, mysql-client, Mysql-devel, mysql-shared, mysql-s

Tags: inventory service statement OSI ble DIV ast pes conflictMySQL5.7 started with the new multi-source replication feature, which allows one salve to replicate multiple primary library transactions at the same time, Slave creates a pipeline to each of the main libraries. Multi-source replication does not detect confl

careful to avoid conflicts between updates to tables on the primary server and updates made to tables on the server. The principle of replication: (1) Master changes the record to binary log (these are called binary log events, binary logs event);(2) Slave copies the binary log events of master to its trunk logs (relay log);(3) Slave redo the events in the rela

Mysql multi-master unidirectional -- amp; gt; ring synchronization bitsCN.com Principle:MySQL Replication is a master-slave synchronization solution for multiple MySQL databases. it features asynchronization and is widely used in various scenarios that require higher performance and reliability for MySQL. Another techn

Tags: Allow copy tar recommended Eve tab HTML Data sheet technologyIn the previous article, we introduced the MySQL master-slave building based on Docker, and the construction process of a master multi-slave is to repeat a master-one from the library configuration process, it is necessary to pay attention to ensure tha

Tags: STS sele related session Last comma ATI base cannotMaster-slave replication: Single virtual machine enables multi-instance 3306,3307,33083306 Main Library---> 3307 from library3308 from Library1. Start MySQL multi-instance service 3306,3307,3308/data/3306/mysql start;/data/3307/mysql start;/data/3308/mysql StartSS-LNTUP|GREP 330//after startup check2. To ac

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

Tags: MHA mysql MHA multi-group master-slave replication masterha_default.cnf MHA ManagerEarlier we learned that MHA manages a group of master and slave, however different applications in the actual production environment will use different databases, so there will be multiple sets of