postgresql multi master replication

Tags: perform mysql configuration, etc height ret port configuration of its databaseMySQL database itself provides the master-slave replication function can easily achieve multiple automatic data backup, to achieve the expansion of the database. Multiple data backup can not only enhance the security of data, but also can further improve the load performance of database by implementing read-write separation.

A Brief Introduction to MySQL multi-source replication and mysql Replication Recently, ORACLE released several new features in the latest version of Mysql5.7.2. Most of the improvements are in terms of database performance and replication-related features. This new version will bring us incredible results. In this arti

, install the same way====================================================================================Three, master and slave configuration1.postgresql Adding a replication userSu-postgres users under[Email protected] ~]$ PsqlPsql (9.2.10)Type ' help ' for help.postgres= #create role repl password ' 123456 ' login superuser

Tags: PostgreSQL dual machine Hot spare stream replication 9.3.9System Environment: centos6.5Database version: postgres9.3.9Virtual Machine 2 units:master:10.0.2.160slave:10.0.2.69Data storage location:/usr/local/pgsql/data/ Installing the Pgsql Database安装过程可参考我上一篇博客：http://blog.51cto.com/13632960/2117902 两台机器都需要安装完成，我在做热备的时候，Master数据库开启，Slave关闭。 Create

longer suitable for continued use; but the mixed type is at the default transaction isolation level, the Master/Slave Data may be inconsistent;Log-slave-updates, gtid-mode, enforce-gtid-consistency, report-port, and report-host: Used to start GTID and meet other ancillary needs;Master-info-repository and relay-log-info-repository: enable these two functions to ensure binary and slave server security during

of the Master_log_pos node on slave based on the value of the previous synchronization failure, and then test again and again until the synchronization is OK. Because the principle of MySQL master-slave replication is to read the master server from the server Binlog, and then according to Binlog Records to update the database.2.mysql-proxy's Rw-splitting.lua scr

http://heylinux.com/archives/1004.html MySQL Master-slave Replication (master-slave) and read-write separation (Mysql-proxy) practiceAs the most widely used free database in the world, MySQL believes that all engineers engaged in system operations must have contacted. However, in the actual production environment, the single MySQL as a separate database is comple

these fields in more detail: PID: This represents the process ID of the wal_receiver process that is responsible for streaming connections. If you check your process table on your operating system, you should find a PostgreSQL process with that number. Usesysid: Each internal user has a unique number. The system works much like Unix. Usesysid is the unique identifier of the (PostgreSQL) user connected to t

the data from the node to ensure data consistency. If one of the nodes fails, the other nodes will immediately connect to the business without downtime. Features and benefits of MongoDB replication set Features of the replica set: n Nodes of a cluster Any node can be used as the master node All write operations are on the primary node Auto Fail-Ov

), if master suddenly falls down, Slave3 becomes master and slave, Slave2 will not be able to distinguish the next event position, Slave2 (POS80) is only relative slave1 Binlog in the event POSTwo. Multi-Threading using MTS (multiple thread slave) in schema, because operations on different schemas do not affect each other, so you can parallelI'm the split line **

log_slave_updates, you can let slave play the Master of other slave. At this point, slave writes the events executed by the SQL thread to its own binary log (binary logs), and then its slave can get the events and execute it. As follows:3.5. Copy filter (Replication Filters)Replication filtering allows you to replicate only a subset of the data in the server, wi

Tags: SCP insert trunk log top logfile cat row Rtu nobackupEnvironment Description:Version 5.6.25-logMain Library ip:10.219.24.25From library ip:10.219.24.22OS Version: CentOS 6.7Hot standby software installed: XtrabackupFirewall is off Add:Principle of Master-slave replication: http://blog.csdn.net/zhang123456456/article/details/72972701MySQL 5.6 Installation: http://blog.csdn.net/zhang123456456/article/de

Memcached memory replication/master-slave mode-mecached1.4.13, memcached master-slave Repcached Introduction Repchched Project address: http://repcached.sourceforge.net/ Repcached "Repcached" is a patch set that adds the data replication feature to memcached 1.2.x. Main PurposeImplement the redundant memcached Sy

-source replication, I restored the virtual snapshot to the original state of all the hosts. 　　　　　 Third, multi-source replication 1. I configured MYSQL1 and MYSQL2 as Master host, Mysql3 configured as slave host and edit the configuration file: MYSQL1: [mysqld] server-ID 1 Log-bin=/mydata/data/mysql-bin MYSQL2:

) local all all trust # allow re Plication connections from localhost, by a user with the# replication privilege. #local Replication Postgres Peer #host replication Postgres127.0.0.1/ +iden thost Replication Postgres192.168.1.1/ -Trust VI $PGDATA _home/postgresql.conf ' * ' 5432 Wal_level

Streaming replication Slots is a pending feature in PostgreSQL 9.4, as part of the logical changeset extraction feature.What is they for, what does need to know, what changes?What is replication slots?Streaming replication slots is a new facility introduced in PostgreSQL 9.4

Label:Primary database: 172.16.254.21 port: 5432From database: 172.16.254.22 port: 5432 Step 1: Master-Slave installation SlonApt-get Install Slon-binStep 2: Configure permissions for the master-slave database to create the language.Vi/etc/postgresql/8.3/node/pg_hba.conf in the primary databaseAdd a record host all REPL 172.16.254.22/32 MD5 Perform the following

basically use any shell script to archive transaction logs. Here are some ideas: • Use some simple replication to transfer data to an NFS share • Run rsync to move files • Use custom scripts to validate the Xlog file and move it to an FTP server • Copy XLOG files to tape The choice of possible management Xlog is limited by imagination. Restore_command accurately corresponds to Archive_command. Its role is to get the data from the archive and provide

the master if there are incorrect data replication 2.4boot the main library to view the configuration results Postgres=#select * from Pg_stat_replication;-[RECORD1]----+------------------------------PID|1793Usesysid|24576Usename|replica Application_name|Walreceiver client_addr|192.168.1.203Client_hostname|Client_port|32250Backend_start| .- the- on A: at:16.924496+ ,Backend_xmin|1676 State|Streaming Sent_

Tags: mysql master and slave replicationMySQL master-slave replication and semi-synchronous replication principle1, master-slave replication is mainly based on the binary log (binlog), the binary logging is a complete event. 2. Ta