sync ibooks

Use pt-table-sync to restore inconsistent data In the previous article, pt-table-checksum was used to verify data consistency. This section describes how to verify master-slave data consistency. when determining whether master-slave data is inconsistent, you must consider how to fix it. We recommend another important tool of percona-toolkit: pt-table-sync. Percona-toolkit installation and introduction Perco

First, IntroductionPt-table-checksum is one of the Percona-toolkit series tools that can be used to detect the consistency of the data in the master and from the database. The principle is to run on the main library, checksum the synchronized tables and record them. It then compares the checksum of the main table to determine whether the data is consistent. The detection process in blocks, for large tables can be differentiated into multiple blocks, so as to avoid the lock table (according to a

Pt-table-checksum check and pt-table-sync repair data, checksum Check Tool1. Download the ToolkitLog on to the website and download the corresponding toolkit https://www.percona.com/downloads/percona-toolkit/LATEST/2. Installation(1) yum installation: sudo yum install http://www.percona.com/downloads/percona-release/redhat/0.1-4/percona-release-0.1-4.noarch.rpmyum list | grep percona-toolkit The result set displays the following proof that the install

The Svnsync can easily synchronize another source SVN version to the specified repository, providing convenience for multi-version library applications.Example: (The repository is stored under directory/svn/)Source Version library: svn://196.168.0.1/testa Sync User:sync_source Password:123456Target repository: svn://196.168.0.2/testb Sync User:sync Password:123456The source repository is used to develop app

In Java, the Synchronized keyword is used to control thread synchronization, that is, in a multithreaded environment, control synchronized code snippets are not executed concurrently by multiple threads. Synchronized can either be added to a piece of code or added to a method.The point is, don't think it's all right to add synchronized to a method or snippet, and look at the following code:Class Sync {public synchronized void Test () {System.out.print

Sync framework 2.1 introduces new features that allow you to synchronize SQL Server or SQL Server compact databases on your computer with SQL azure databases. This release also introduces parameter-based filtering and the ability to delete synchronization scopes and templates from databases, and enhances performance to accelerate and simplify the synchronization process.SQL azure Synchronization With sync f

Database Synchronization Overview Overview Sync Framework supports synchronization between databases. It provides an intuitive and flexible API that allows you to generate applications for offline and collaborative solutions. With this API, you can use all or part of the provided components to complete synchronization based on the application architecture and requirements. Sync Framework supports client-ser

How to turn off and on auto sync and background data on androidadmin On Jun 23,201 1- 1 comment In this article we will give you a tutorial how to turn off auto sync on Android or Google phone. But before that, we will explain to you about auto sync and background data on Android. Understanding background data android If the Android Application running in the bac

Firefox sync firefox sync has been officially built into Firefox Firefox 4 since it was launched at the end of last March. It supports all the data in Firefox (such as your bookmarks, history, passwords, and open tabs) and supports the Firefox extended one-click Sync feature to help you enjoy the same Internet experience in different devices and environments. Se

After the Sync command starts the unix system with the reboot command, the system prompts an error message. Some applications cannot work normally. After carefully checking the system files and comparing them with the initial correct backup, we found that some files were indeed damaged and we could not find the cause of the file being damaged, finally, I thought of writing the cache command-sync. I didn't r

Unix/Linux sync command, unixlinuxsync command Write cache command -- sync After the unix system is started with the reboot command, the system prompts an error message, and some applications cannot work normally. After carefully checking the system files and comparing them with the initial correct backup, we found that some files were indeed damaged and we could not find the cause of the file being damage

Microsoft sync framework is a fully functional synchronization platform that implements applications.Program, Service and device collaboration and offline access. It provides some technologies and tools that support roaming, sharing, and obtaining data offline. By using the sync framework, developers can build a synchronization ecosystem to integrate any application with any data in any storage using any pr

In the previous section, we said that knowledge is the metadata (metadata) in Microsoft sync framework. This metadata is used to describe all changes applied to replica. These changes are either direct, or through synchronization. MSF uses knowledge to enumerate changes and conflict detection. Change enumeration and Conflict Detection generally compare the versions of the same item in two copies. A typical practice is that destination sends the ve

Sync is a method of CANopen to manage the synchronous data receiving and dispatching of each node, which is equivalent to the network beats, and the synchronized PDO performs real-time data transmission according to this network beat. Sync belongs to the production/consumption mode of communication, there is only one sync producer in the network, there are genera

Synchronize kernel buffer sync, fsync, and fdatasync functions, fsyncfdatasyncSynchronize the kernel buffer 1. introduction to the buffer zone one of the three illusion of life: when calling the function write (), we think that once the function is returned, the data has been written into the file. however, this concept is only macro-level. in fact, when the operating system implements some file I/O (such as disk files), in order to ensure the I/O eff

Many friends work very busy, not only often overtime, sometimes also need to take the unfinished work home to complete. With the laptop is OK, if it is a desktop, each time you will use a U disk to the company's computer on the copy home, finished the next day after the handcuffs back. Trouble not to say, in case of forgetting, the next day to the company can not be able to do. In fact, as long as the use of a small Windows Live components, the company's Win7 computer to create a

This is a creation in Article, where the information may have evolved or changed. The Golang Sync package implements two types of lock mutexes (mutexes) and Rwmutex (read and write locks), where Rwmutex is implemented based on mutexes, and read-only locks are implemented using similar functions as reference counters. Type Mutex func (M *mutex) Lock () func (M *mutex) Unlock () type Rwmutex func (rw

Baidu Cin::sync (), the majority of the interpretation is used to clear the buffer, and declare the general and Cin::clear () function together to achieve the purpose.The same way Baidu clears the buffer, and most of it says to use Cin::sync () to achieve this goal.　　　　　　However, Cin::sync () is not used to clear the buffer, so sometimes it does not do what we wa

Background Sync is Google's new web API that can delay sending user behavior until the user's network connection is stable. This helps to ensure that the data that the user wants to send is the actual data sent.The problems that exist todayNetwork is the most time to kill users, time wasted on the network waiting for page loading, Web page rendering and other loading data aspects. But there are a lot of times when you don't want to waste time and more

Background Sync is Google's new web API that can delay user behavior until the user's network connection is stable. This helps to ensure that the data that the user wants to send is the actual data sent.The problems that exist todayNetwork is the most time to kill users, time wasted on the network waiting for page loading, Web page rendering and other loading data aspects.But there are a lot of times when you don't want to waste time and more expect t