replication activity

This article demonstrates how to build the most basic transactional replication.Environment Preparation: 2 virtual machines:The server names are Repa and Repb,repa are publishers, and REPB are subscribers. Are installed WindowsServer 2008r2 English version (the reason for working in a foreign company). and ensure that the two servers can exchange visits.SQL Server:In the above virtual machine, install SQL Server R2 x64 English Enterprise Edition separately.Demo Database:Microsoft Sample Database

The ultimate goal of data replication is to synchronize the data of one server with the data of another server, which can achieve data redundancy or load balancing of services. A master server can connect multiple slave servers, and the slave server can act as the master server in turn. The master-slave server can be located in different network topologies. Due to the powerful mysql replication function, th

The previous blog said how to use Xtrabackup to back up and restore databases. After the database has been restored, the two machine databases are the same, including Binlog file and Pos.At the same time, after the Xtrabackup backup is completed, the relevant Binlog file and POS information has been written to the backup information file, and the cat can view it under Linux. Then execute the Change Master command on the standby to successfully build the master-slave

Starting from this article, will formally explain WF4.0, this article mainly involves the following content: Activity introduction, WF4.0 workflow structure, through WriteLine demo inargument Introduction of activity and use of WriteLine activity Code download [WF4.0 Basic article (a) start using WF] Code Http://files.cnblogs.com/foundation/helloWorkflow.rar

MariaDB's GTID replication and multi-source replication, mariadbgtid Replication What is GTID? GTID is the global transaction ID (global transaction identifier). It was initially implemented by google and officially added to MySQL in MySQL 5.6. GTID is actually composed of UUID + TID. UUID is the unique identifier of a MySQL instance. TID indicates the number of

The so-called "copying objects" generates a "sibling brother" that is exactly the same as the specified object ". For object replication, there are two scenarios: shallow replication and deep replication. 1. Shallow copy: when the field value of the object is copied, the object referenced by the field will not be copied. For example, if an object has a fiel

Create a console sequential Workflow sample program framework Follow the steps below to create a console sequential Workflow sample program: 1. Start VS2008, click menu "File" | " New "|" Project, create a console sequential Workflow sample program named Codeanddelay, as shown in the following figure. 2. After that, the system automatically opens the Workflow designer interface, as shown in the figure. 3. From the Toolbox, drag the Code,delay,code three activities to the right side of th

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 replication: Requests Binlog to Maste

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 replicationMySQL replication principle/library-based multi-threaded replication principle/BLGC-based multi-threaded replication principleSingle thread master-slave replication:From the library to the main library to request Binlog, and binlog into their own relaylog, from the library redo Binlog inside the SQL,This is done mainly by the following thre

, 3, 5] [1, 2, 3, 5]Here, both variables A and B point to the same object (a list). Therefore, once you modify either of them, the other one will also be affected. in any case, the original object will be modified.Note:To become a python expert, the first thing to note is the change operation and assignment of objects, which are all reference operations on objects. A statement such as a = [] re-binds a to a new object, but does not affect the previous object. however, object

Android Elite Biography-eighth chapter: Activity and activity Call stack analysis At the beginning, we state that activity,activity is the core component of the entire application user interaction, understanding the activity's working mode, life cycle and management style, is the foundation of Understanding An

Introduction to the startup method and flag of the Activity, and the flag of the activity Method Activity Status: Active: When an Activity is on the top of the stack, it is visible, focused, and user input acceptable. Android tries to maintain its Activity status as much as

Multi-source replication If this is an entire instance-level replication, there is no scenario described below.If you are filtering replication on one or more of the primary instances, and after running for a while, how do you want to add a library to this source? Main 1:192.168.1.10 3306 DB1 DB2 Main 2:192.168.1.20 3306 db3 from: 192.168.1.30 3306 If the previou

MySQL performance tuning and Architecture Design-Chapter 1 Performance Design-MySQL Replication and replication Optimization Chapter 1 scalability design-MySQL Replication Preface: MySQL Replication is a unique feature of MySQL. It can completely copy data from one MySQL Server Instance to another MySQL Server Instance

: 1. First, you need to deploy a new broker, still referencing how to start the document, and configure Server.ini to copy from Master Broker. 2. Second, configure the slave file. Edit conf/async_slave.properties: #slave编号,大于等于0表示作为slave启动,同一个master下的slave编号应该设不同值.slaveId=0#作为slave启动时向master订阅消息的group,如果没配置则默认为meta-slave-group#不同的slaveId请使用不同的groupslaveGroup=meta-slave-group#slave数据同步的最大延时,单位毫秒 slaveMaxDelayInMills=500#是否自动从master同步server.ini, 1.4.2新增选项#第一次仍然需要自己拷贝server.ini，后续可以通过设置此选项为true来自动

Android interview questions -- Activity, android -- activity 1,What is Activity?Activity is one of the four most basic and common components in Android (Activity, Service, Content Provider, BroadcastReceiver broadcast receiver.Activity is an application component that provid

One, what is activity? Simply put: An activity is an interactive interface that is full of windows or floating over other windows. In an application, which is typically composed of multiple activity, a master activity is specified in the Manifestxml, as set When the program is first run, the user will se

first, what is activity? Simply put: Activity is an interactive interface that fills the entire form or hovers over other forms. In an application that is typically composed of multiple activity, a master activity is specified in manifest.xml, such as the following settingsWhen the program executes for the first time,

first, what is activity? Simply put: Activity or an interactive interface suspended on other forms.In an application, it is usually composed of multiple activity. Will specify a primary activity in manifest.xml, such as the following settingsWhen the program executes for the first time, the user will see the