postgresql master master replication

Redis supports Master-slave (master-slave) mode, where Redis server can be set up as a host (slave) for another Redis server, from which the data is periodically taken from the host computer. Specifically, a slave can also be set up as a Redis server host, so that the master-slave distribution looks like a forward-free graph, a Redis server cluster, whether the h

Postgres/usr/local/pgsql_data######## Primary Library Initialization Pgsql# su-postgres# # Pgsql not be able to use the root user by default$ pg_ctl-d $PGDATA init# # Initialize DB# # # Configure master-Slave flow replication$ CD $PGDATA$ vim postgresql.conflisten_addresses = ' * 'Wal_level = Hot_standbyMax_wal_senders = 2log_destination = ' stderr '# # # The following is the turn on logging featureLogging

Dual-master replication architecture and MMM Introduction Common replication architectures in MySQL include "one master, one slave", "one master, multiple slaves", "Two Masters", "multi-level replication", and "multi-

MySQL's database has the following high-availability architectures: Clustering, read-write separation, and master preparation. And two of the following are done by copying. The following is a brief introduction to the principles and configuration of replication, as well as some common issuesFirst, the principle of replicationMySQL replication tracks all changes t

Tags: User authentication io_error Storage Troubleshooting Preface ASE read/write detach outI. PrefaceMaster-slave replication is a very heavy need for a module in MySQL knowledge system. The study of master-slave copying and subsequent reading and writing separation is an important part of perfecting knowledge system. and master-slave copy read and write separat

-serverConfigure MySQL1. Chinese Encoding settingsEdit MySQL configuration file/etc/my.cnf [mysqld] Character-set-server=utf8 datadir=/var/lib/mysql socket=/var/ Lib/mysql/mysql.sock collation-server=utf8_general_ci Security Risks symbolic-links=0 Log-error =/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid [client] Default-character-set=utf8 [MySQL] Default-character-set=utf82. Authorization ConfigurationRemote connection Settings Oh set all permissions for all libraries, all tables, as

master-Slave form MySQL master-slave replication flexibility One Master one from Primary master replication One master multiple reads from the---extended system,

The role of Master and subordinate: 1. Can be used as a backup method 2. Used to achieve the separation of read and write, ease the pressure of a database MySQL master-slave backup principle: MySQL's master-slave replication is at least two MySQL services, of course, MySQL services can be distributed on different s

Tags: Turn off specify authorization Ted must replicat offset art IDEFirst, the MySQL database master-slave replication principle process:MySQL's master-slave replication is an asynchronous replication process where data is copied from one MySQL database (