postgresql multi master replication

new repository with the contents of the trunk log. This completes the synchronization process. second, the common replication model1 , one master one from the model650) this.width=650; "src=" Http://7xaxaa.com1.z0.glb.clouddn.com/1.jpg "width=" 285 "height=" 133 "alt=" 1.jpg "/>The advantages of this architecture are relatively simple, the construction and maintenance are relatively easy, the cost is relat

Tags: binary file thread state different MYSQ based on user backup enterprise1. Set the Servie-id value of main Library master and turn on Bin-log function parameterVi/etc/my.cnfTo modify the parameters of the MY.CNF:[Mysqld]Server-id=1 //Each library must have a different Server-idLog-bin=mysql-bin 2. Check that the parameters are set and restarted successfullyEgrep "Server-id|log-bin"/etc/my.cnfRestart command see: MySQL installation or MySQL databa

,... , while Slave-1 is no longer responsible for select. Slave-1 transfers the burden of the master copy thread to its own body. This is called the concept of multi-level replication.Issue 6: When a select is sent to the MySQL proxy, this time the slave-2 response, the next time by the slave-3 response, so that the query cache can not be exploited.Should find a shared cache, such as memcache to solve. The

InnoDB engine database master-slave replication synchronization new sharing bitsCN.com recently upgraded the company's MySQL architecture, from the original master-slave multi-slave to DRBD + Heartbeat dual-master multi-slave, the

library, resulting in delaysView The configuration of Master and Slave may cause replication delays due to improper configurationissue 3: too many slow SQL statementsIf a statement executes for more than 2 seconds, it needs to be tunedissue 4: Master-slave replication design issuesMaster -slave

Tokyo cabinet tyrant supports master-slaver and master-master distributed deployment. However, because master-slaver needs to manually set the master after the master is down, this method of Cold Start is not very good. In additi

serverreplicate_ignore_db = Test\ \ non-binary log replication databasereplicate_ignore_db = MySQLreplicate_ignore_db = Information_schemaReplicate_wild_do_table = Sxjy.stu\ \ Copy the binary log of the specified database or tableReplicate_wild_do_table = sxkj.%Replicate_wild_ignore_table = Sxjy.class\ \ Does not copy the binary log of the specified database or tableExercise: First build a MySQL database server, do not enable binary logging, and then

, Case: Customer complaints: Modified xx information, prompted to modify the success. View or old data again. What's going on?Most likely caused by a database master-slave delay3, MySQL master-slave delay delay problem how to deal with?1. Occasional delay: Control the Write speed, peak load shifting.2. Frequency delay: Split database for multi-point write3. Last

password.If the above password is wrong, it can be entered, but cannot be manipulated afterwards. Need to re-authorize with Auth.Second: master-slave replicationRedis's master-slave replication feature is very powerful, a master can have multiple slave, and a slave can have more than slave, so continue to form a power

Tags: PostgreSQL masterSetting up PostgreSQL master server under UbuntuInstall slightlyPostgreSQL master server:$ vi/home/postgresql/data/postgresql.confPress A or I to enter edit modelisten_addresses = ' * 'Wal_level = Hot_standby (default is commented)Max_wal_senders = 5 (

Features## Read the manual, too, if you want chroot!# Chroot =/var/lib/mysql/## For generating SSL certificates I recommend the OpenSSL GUI "tinyca ".## Ssl-ca =/etc/mysql/cacert. pem# Ssl-cert =/etc/mysql/server-cert.pem# Ssl-key =/etc/mysql/server-key.pemServer_id = 1Log_bin =/var/log/mysql/mysql-bin.logLog_bin_index =/var/log/mysql/mysql-bin.log.indexRelay_log =/var/log/mysql-relay-binRelay_log_index =/var/log/mysql/mysql-relay-bin.indexExpire_logs_days = 10Max_binlog_size = 100 MLog_slave_u

This document is based on Nginx+tomcat+redis (session basis) to do the operation, this operation is not introduced, can refer to: http://francis905.blog.51cto.com/3048056/1720693Principle part:Redis's master-slave replication feature is very powerful, a master can have multiple slave, and a slave can have more than slave, so continue to form a powerful

, mysql5.7 began to support multiple master one fromIv. Construction of master-slave replication1, necessary conditions: Open Log-bin parameters, master-slave Server-id different, relay-log, from the library server can connect to the main libraryV. The problem of master-slave replication1, the host after the outage, th

Label:master-Slave form MySQL master-slave replication flexibility One Master one from Primary master replication One master multiple reads from the---extended system, because reads are read from the librar