synchronous alternator

Tags: before master recovery policy data semi-synchronous sync int SyncMysql5.6 Semi-synchronous strategyMysql 5.6 uses the after commit policy when it is semi-synchronous. After a commit is made on the main library, wait for the acknowledgement to be returned from the library.In this case, the first question of Phantom reading is that the current connected trans

Label:5.2 Understanding actual impact and performanceIn this chapter, we have discussed the actual impact as well as the performance impact. But is there any good theoretical example? Let's do a simple benchmark test to see how replication is done. We do such tests to show you that the levels of endurance are not just a minor topic, but they are critical to performance. Let's assume a simple test: In the following scenario, we have connected to two equally powerful machines (3 GHz, 8 GB RAM) ove

In the process of network communication, both parties need to exchange data, which requires high collaboration. In order to correctly interpret the signal, the receiver must know exactly when the signal should be received and processed, so timing is crucial. In computer networks, timing is called bit synchronization. Synchronization requires the receiver to receive data according to the start time, end time, and speed of each bit sent by the sender. Otherwise, an error occurs. Usually

Synchronous communication principle Synchronous communication is a continuous serial transmission of data. Only one frame of information is transmitted at a time. The Information Frame here is different from the character frame in asynchronous communication. It usually contains several data characters. When synchronous communication is used, many characters are c

The differences between MySQL semi-synchronous and asynchronous replication are as shown in the architecture diagram above: In the case of MySQL asynchronous replication, MySQL master server transfers its binary log through the replication thread, MySQL Master Sever automatically returns data to the client, regardless of whether the binary log is accepted on slave. In a semi-synchronous replication architec

Rotten mud: mysql5.5 master-slave synchronous replication configuration, mysql5.5 master-slave This article was sponsored by Xiuyi linfeng and first launched in the dark world. In the previous article "mud: learning the principles of mysql database master-slave synchronous replication", we introduced the basic principles of mysql master-slave replication. In this article, we will test the master-slave

Tags: mysql 5.6 semi-synchronous configurationSemi-synchronous replication:Plugins are provided by Google.When the main library commits a transaction, it must ensure that the binary logs have been transferred to at least one repository before the client receives the query end feedback.The IO thread from the library after accepting the binlog and writing to its own relaylog (regardless of whether the realylo

Tags: copy semi-synchronous pluginA: Prerequisites Master-slave replication is done (see previous article)Second, the realization of semi-synchronous replication of the prerequisite conditions1. Installing the plugin PluginMySQL default is not support semi-synchronous, is supported by the plugin plug-in plug-in. Either binary or compiled installation, This plugin

the concept of synchronous and asynchronousProcess synchronization is used to realize the reproducibility of program concurrency execution.A The concept of process synchronization and Asynchrony1. Process synchronization: When a function call is made, the call does not return until the result is obtained. That is, one thing must be done . , You can do the next thing when you're done with the previous one . Like waking up in the morning, first wash, th

Directory (?) [-] Conceptual understanding Five types of IO models under Linux Blocking IO Model Non-blocking IO model IO multiplexing Model Signal-driven IO Asynchronous IO Model Comparison of an IO model Selectpollepoll Introduction Socket blocking vs. non-blocking, synchronous and asynchronousHuangguisu1. Conceptual understandingIn network programming, we often see

Tags: mysql1. Issue backgroundBy default, MySQL replication on the line is asynchronous, so in the extreme case, there is a certain probability of cubby the main library data when switching, so after the switch, we will rollback back to the tool to ensure that the data is not lost. Semi-synchronous replication requires that the main library perform every transaction, requiring at least one repository to be successfully received before it is actually c

| | +--------------------+ 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 [Root@localhost ~]# systemctl start

Today in the group asked friends there is no synchronous load Assetbundle method, colleagues give me pointing unity3d don't know in which version added a Assetbundle.createfromfile interface, this interface is synchronous read Assetbundle. The help document is then queried for relevant information.Http://docs.unity3d.com/ScriptReference/AssetBundle.CreateFromFile.htmlarticle turn from Http://blog.csdn.net/h

=============================================================================================Second, semi-synchronous replicationBecause MySQL replication is based on asynchronous, in special cases can not guarantee the successful replication of data, so after MySQL 5.5 used from Google patch, MySQL replication can be implemented in semi-synchronous mode. Therefore, you need to load the corresponding plug-i