Semi-synchronous replication (Semi-synchronous Replication)

Before MySQL5.5, the replication of MySQL was an asynchronous operation, and there was a certain delay between the data of the master database and the slave database. There is a hidden danger: when a transaction is written to the master database and delivered successfully, and the slave database has not yet got the Binlog log pushed by the master library, the master library goes down, such as the master library.

2022-06-01 Database 我要分享

Mysql semi-synchronous replication

one。 Characteristics of semi-synchronous replication 1. Compared with traditional asynchronous replication, semi-synchronous replication selects one node among multiple Slave nodes for semi-synchronous replication. That is, when Master commits a transaction, the Slave side of the semi-synchronous replication returns a

2022-06-01 Database 我要分享

Analysis on the blocking problem of adding Cluster to the original main Library of semi-sync

When Peng Xusheng of Walk Technology supported customers to deal with problems some time ago, he found that when a semi-sync replication master-slave switch the original master to join the cluster, the replication synchronization was blocked and the data could not be synchronized. It is of great reference significance to sort it out for your reference. Problem phenomenon customer

2022-06-01 Database 我要分享

Semi-synchronous replication installation configuration

Asynchronous replication (Asynchronous Replication) mysql default replication is asynchronous, the main library will immediately return the result to the client after executing the things submitted by the client, and does not judge whether the slave library has been accepted and processed, so there will be a problem

2022-06-01 Database 我要分享

Script to Collect Log File Sync Diagnostic Information (lfsdiag.sql)

The article from: http://m.blog.itpub.net/31393455/viewspace-2130875/Script to Collect Log File Sync

2022-06-01 Database 我要分享

What are the differences between sync_binlog parameters in MySQL 5.7 and after_commit and after_sync in semi-synchronization

This article is about the differences between sync_binlog parameters in MySQL 5.7 and between after_commit and after_sync in semi-synchronization. The editor thinks it is very practical, so share it with you as a reference and follow the little one together.

2022-05-31 Database 我要分享

How to realize semi-synchronous replication in mysql5.5

This article shows you how to achieve semi-synchronous replication in mysql5.5, the content is concise and easy to understand, it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article. Master:192.168.70.101slave:1

2022-05-31 Database 我要分享

Deadlock causes MySQL Hang Analysis (transfer)

Problem phenomenon: MySQL instance Hang, links continue to accumulate and then reach the upper limit of the number of connections, all transaction-related operations and connection operations are stuck, CPU and load are low; problem handling: MySQL main library Hang is not available, temporary solution can only restart the real

2022-06-01 Database 我要分享

How to realize semi-synchronous semi-sync replication in MySQL

This article mainly introduces how to achieve semi-synchronous semi-sync replication in MySQL. It is very detailed and has a certain reference value. Interested friends must read it! Introduction to semi-synchronization MASTER node after performing client fetch

2022-06-01 Development 我要分享

Influence Analysis of Oracle Adaptive log file sync

This article mainly introduces "Oracle adaptive log file sync impact analysis". In daily operation, it is believed that many people have doubts about Oracle adaptive log file sync impact analysis. The editor consulted all kinds of data and sorted it out.

2022-05-31 Database 我要分享

MySQL semi-synchronous replication-advantages, disadvantages, configuration

When it comes to semi-synchronous replication, we have to talk about three methods of replication: asynchronous replication: for asynchronous replication, after the Master host writes events to the binlog log, there is no guarantee that all events have been replicated to the slave host, so if between Master and Slave

2022-06-01 Database 我要分享

How to configure and monitor MySQL 5.5 semi-synchronous replication

Editor to share with you how to configure and monitor MySQL 5.5 semi-synchronous replication. I hope you will get something after reading this article. Let's discuss it together. In the replication environment of MySQL, data synchronization is asynchronous by default, and the Master node writes events to two.

2022-05-31 Database 我要分享

Installation steps of mysql5.6 semi-synchronous Master and Slave

This article mainly explains the "mysql5.6 semi-synchronous master-slave installation steps", the article explains the content is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "mysql5.6 semi-synchronous master-slave installation steps" bar! One match

2022-05-31 Database 我要分享

Lossless copy (mysql5.7)

Before introducing lossless replication, let's first introduce semi-synchronous replication: lossless replication is a kind of semi-synchronous replication. First, semi-synchronous replication introduction 1, two plug-ins to achieve semi-synchronous replication function. The master library has a plug-in and the slave library has a plug-in. 2. The system variable controls the plug-in features. Several columns of sub-ginseng

2022-06-01 Database 我要分享

How to realize MySQL Asynchronous replication and semi-synchronous replication

This article mainly introduces "how to realize MySQL asynchronous replication and semi-synchronous replication". In daily operation, I believe many people have doubts about how to realize MySQL asynchronous replication and semi-synchronous replication. The editor has consulted all kinds of materials and sorted out simple and easy-to-use operation methods, hoping to give you an answer.

2022-05-31 Database 我要分享

Detailed explanation of the use of sync.Cond in Go language

This article mainly introduces "the detailed explanation of the use of sync.Cond in the Go language". In the daily operation, I believe that many people have doubts about the detailed explanation of the use of sync.Cond in the Goe language. The editor has consulted all kinds of materials and sorted out the simple and easy-to-use operation methods, hoping to give you an answer.

2022-06-03 Development 我要分享

Pt-table-sync Common referenc

Pt-table-sync is an excellent tool to solve the inconsistency between master and slave data. It can also be used to synchronize data between two non-master-slave databases. Ddl can not be synchronized, but data can only be synchronized. The following are common examples: hackers 192.168.56.101 is the source, hackers 192

2022-06-01 Database 我要分享

How to use Go sync.Map

This article mainly explains "how to use Go sync.Map". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn how to use Go sync.Map. The following code looks like

2022-06-03 Development 我要分享

Example Analysis of Semaphore Source Code of JUC

This article mainly shows you "sample analysis of Semaphore source code of JUC". The content is simple and clear. I hope it can help you solve your doubts. Let me lead you to study and learn "sample analysis of Semaphore source code of JUC".

2022-06-03 Development 我要分享

Mysql semi-synchronous configuration

The principle of Mysql semi-synchronization is that the master library only needs to confirm that it has received something from the library, and there is no need to wait for the slave library application. Compared with asynchronous replication, semi-synchronization improves the guarantee of data integrity, but increases the response time of the master library. 1. Install Mysql and configure master-slave reference http://blog

2022-06-01 Database 我要分享