vmware synchronous replication

Label:synchronous, asynchronous, semi-synchronous replication comparison:Synchronous replication: Master commits the transaction until the transaction is committed at all slave, and the client is returned, and the transaction is completed. Disadvantage: There can be a significant delay in completing a transaction.Asynchronous

Asynchronous replication: MySQL natively supports one-way, asynchronous replication. Asynchronous replication means there is a delay in copying data from one machine to another-most importantly this means that the data cannot be copied/applied to the slave at the same time when the application's transaction commit has been confirmed. Typically, this delay is dete

Tags: mysql database replication primary master replication Master-slave replication semi-synchronous replication--------------MySQL to implement the database master-slave replication Architecture----------------First, the Environ

So far, we have processed file-based replication (or log shipping) and simple stream-based replication settings. In both cases, after the transaction is committed on master, the data is submitted and received by slave. It will still be lost at the time that master commits and slave actually receives the data completely.In this chapter, we will study the following topics:• Ensure that no transactions are los

|| User |+ ------ +3 rows in set (0.00 sec)// Create a table on server B192.168.255.102Mysql> create table test2 (id int (4), name varchar (20 ));Mysql> show tables;+ ------ +| Tables_in_test1 |+ ------ +| Name || Test1 || Test2 || User |+ ------ +4 rows in set (0.00 sec) | user |+ ------ +3 rows in set (0.00 sec)// Query on server192.168.20.101Mysql> show tables;+ ------ +| Tables_in_test1 || Name || Test1 || Test2 || User |+ ------ +4 rows in set (0.00 sec)Bidirectional

two replication schemes: First, both statement-based replication and row-based replication are performed asynchronously by recording the binary logs of the master server and performing replay on the slave server. Mariadb or mysql replication is mostly backward compatible. This means that newer servers can be slave ser

IntroducedOne important feature of Meta compared to Kafka is the implementation of the message high availability scenario, which we call the HA scenario. The message is written to the disk immediately after it is sent to the broker and returned to the client to tell the producer that the message was sent successfully, and the control of the unflushThreshold unflushInterval two parameters can guarantee the security of the stand-alone message data, as long as the machine's disk is not permanently

Concepts ORACLE ORACLE is a large-scale relational database based on advanced Structured Query Language (SQL). It is a set of regular data manipulation in a language that facilitates logical management. It is one of the databases in the CLIENT/SERVER architecture. Advanced Replication What is replication? Simply put, replication is the process of copying data in

Label:5.3 Redundancy and stop replicationWhen it comes to synchronous replication, there is a phenomenon that must not be missed. Imagine that we have a two-node cluster with synchronous replication. What happens if a slave failure occurs? The answer is that master cannot easily divide the region into slow slave and fa

Semi-synchronous replication in MySQL master-slave Replication Experiment MySQL uses the plug-in provided by Google to complete the semi-synchronous replication model; the physical machine is still Windows 7, and the virtual machine is CentOS 7; Master node: 192.168.255.2 Sl

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. Take the binary log of the primary server and run it again from the server. 3. Copy process:

the slave as much as possible. When Master goes down, it switches to slave without a lot of data loss.This method of asynchronous replication was used until the 2010 MySQL 5.5 release. The transaction execution of the main library does not Tabeku the synchronization progress, if the repository is backward and the main library is unfortunate crash, data loss will result. As a result, MySQL has naturally introduced semi-

| | +--------------------+ 3. Implementation of semi-synchronous replication (1) configuration on the primary server 1) Installation Mariadb-server [root@localhost ~]# yum -y install mariadb-server 2) Edit/ETC/MY.CNF [Root@localhost ~]# vim/etc/my.cnfSkip_name_resolve = OnInnodb_file_per_table = OnServer-id = 1Log-bin = Master-log 3 Authorize a host that can replicate local database information

MySQL semi-synchronous replication and mysql Synchronization MySQL supports semi-synchronous replication as a plug-in starting from MySQL5.5. How can we understand semi-sync? First, let's look at the concept of Asynchronization and full synchronization. Asynchronous replication