mysql group replication

There are many mysql cluster architecture methods, and different architectures are implemented according to different requirements. Simply put, mysql replication is the replication function of Mysql. The modes include master-slaves, master-slaves, master-slaves, and so on ca

executes relaylog.Ps: // logs "/>The idea of multithreading is to convert SQL _thread into a distribution thread, which is then executed by a group of worker_threads.Almost all parallel replication is based on this idea. The difference lies in the distribution policy of SQL _thread.These policies fall into two categories: using the traditional binlog format and modifying binlog.The traditional binlog

| 359 |TABLE_ID: -Flags:stmt_end_f| |Host2-Bin.000001 | 359 |Xid| 1 | 390 | COMMIT /*xid=423*/ | |Host2-Bin.000001 | 390 |Stop| 2 | 413 | | +------------------+-----+----------------+-----------+-------------+----------------------------------------- --------------------------+ 8Rowsinch Set(0.00Sec The following are some of the deletions are bin

or SQL line threads. changing Master The line is impersonating is processing the change MASTER to statement. Killing slave The line is impersonating is processing the stop slave statement. Opening Master Dump Table This state occurs after the creating table from master dump. Reading Master Dump table data This state occurs after the opening Master dump table. Rebuilding the index on Master dump table This state occurs after r

MySQL time group query, MySQL time group Table TESTER Field: id -- INT Date -- TIMESTAMP 　　 1. How do I query data by year, month, or day group? Select DATE_FORMAT (date, '% Y-% m-% D') time, count (*) count from TESTER group by y

function to restart. You may want to configure the replication process in the first way, and pay attention to the slave at the right time to ensure that the slave and the host are in the same step. I have never tested the load balancing processing performance of a system that uses the replication feature, but I will use it flexibly to balance insertion and update. For example, if two records on both server

Label:mysql> stop slave; mysql> change Master to master_delay=10; #单位是秒 mysql> start slave; Mysql> show Slave status\g *************************** 1. Row *************************** slave_io_state: Waiting for Master to send event ... Sql_delay:10 sql_remaining_delay:null slave_sql_running_state:slave have read a

MySQL cluster architecture in many ways, according to different needs to do the same architecture, the simple point is the MySQL replication, that is, MySQL replication function, the mode is: Master-slaves,master-slaves-slaves, Master-master-slaves and so can have multiple l

/localimage.png ") no-repeat center;border:1px solid #ddd;" alt= "Spacer.gif"/>The principle of semi-synchronous replication:650) this.width=650; "src="/e/u261/themes/default/images/spacer.gif "style=" Background:url ("/e/u261/lang/zh-cn/ Images/localimage.png ") no-repeat center;border:1px solid #ddd;" alt= "Spacer.gif"/>650) this.width=650; "Src=" http://images2015.cnblogs.com/blog/820365/201608/820365-20160821160639917-571481540. PNG "style=" borde

MySQL master-slave replication, mysql master-slave Original article published on cu: Reference: This article involves the principle of MySQL master-slave replication and a simple verification of master-slave replication.I. MySQL m

Tags: scheme nbsp detection read/write TPS body Description decision ERRThe main contents of this article are as follows:1. Background generated by group replication2. Comparison of several replication technologies3. Failure detection4. Group members5. Tolerance of failures6. Node State of a member7. Two modes of group

1. Replication overview1.1. Replication-Resolved issuesData replication technology has some of the following features:(1) Data distribution(2) Load balancing (load Balancing)(3) Backup(4) High availability (Hi availability) and fault tolerance1.2. How replication worksFrom the top,

, 5.6 of concurrent replication is a great boost to performance.MySQL5.7 parallel replication is a method of parallel replication based on group commit, 5.7 parallel replication, even if you have multiple things that operate on the same schema and can be played back in paral