postgresql replication

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-Over Automatic recovery

later.Confirm the password again.At this point, the master-slave server MySQL installation completedThird, build MySQL master-slave replicationHere is the principle of master-slave replication, is based on the MySQL log files, the main server's MySQL operation log files sent to the slave server, let the server execute log files, to achieve the purpose of master-slave replication.1, configure the primary se

MySQL5.6 master-slave copy (read and write separation) tutorial1. There are two ways to start a master-slave copy of MySQL5.6:Log based (binlog);Based on the Gtid (global transaction identifier).Note: The Gtid method does not support temporary tables! So if your business system is going to use a temporary table, don't think about it.At least the current version of MySQL5.6.12 's Gtid replication is still not supported for temporary tables.So the main

Tags: User name database server password MySQLWe may encounter this problem when we use the MySQL server database, and if one of the MySQL databases goes down, we want to fix it in the shortest possible time and use the database as quickly as we can, but what if we encounter some failures that cannot be quickly repaired?We can imagine that if this is another database that is identical to this database, the problem is not the same, how can be realized in real-time, and automatic backup or

MySQL from 5.7 to 8.0,PG from 9.6 to 10, dried up.The first beta version of PostgreSQL 10 was released, which contains a preview of all the features that PostgreSQL 10 will eventually provide. Of course, some details will be changed before the final release.PostgreSQL 10 Key Features:The new version allows users to scale out and scale up their PostgreSQL infrastr

PostgreSQL is an open-source SQL database that supports standard SQL and allows users to connect to PostgreSQL via the JDBC driver for application development. The user extends the PostgreSQL function, allowing the developer to access the SEQUOIADB database using SQL statements to complete the SEQUOIADB database, delete, check, and change operations. This paper i

Object replication lvalue-rvalue reference, object Replication Passing real parameters to functions and functions return copies of temporary variables by value. Function efficiency is crucial to execution performance. If such a copy operation is avoided, the execution time may be greatly shortened. Class CMessage {private: char * m_pMessage; public: void showIt () const {cout CMessage message;Message. m_p

The data synchronization function of mysql not only provides load balancing for database queries to a certain extent, but also provides great help for database redundancy, backup, recovery, and load balancing. The data synchronization function can be implemented through master-slave replication, while master-slave replication is performed asynchronously. mysql only supports one master and multiple slaves, a

Master-slave replication for mysql and master-slave replication for mysql Perform the following steps for master-slave replication: Assume that the two master-slave mysql servers are deployed on the same machine on different ports. For example, the server ip address is 58.83.223.20. Ports: 3306 and 3307 If the two services are master and slave, the two services a

I. OverviewKeep one server's data in sync with other server data. Data from one master library can be synchronized to multiple repositories, and the repository itself can be configured as the main repository for other servers.Main applications:1) Data distribution2) Load Balancing3) Pseudo backup. Add more secure technical supplements based on backup4) High availability and failover. Avoid MySQL single point of failure5) Upgrade test. Before upgrading the database, copy the data to the standby s

f_get_member_info (4, 1, '', 'South China tech stores') as member (member_num text, mname text, name text, discount_rate real, account numeric (16,2 ), integral int, phone text, birthday date, qq int, email text, onAccount int, status int, address text, tip text, start_date date, valid_date int, store_nam text ); 5 test results ------------------------------------ Lili split line ------------------------------------ Install PostgreSQL 6.3 on yum in