mysql replication tools

main purpose is to clarify the principle. if there are no special technical details for the specific implementation, try to get it started. Transactions and replication Recently, I participated in a data distribution project involving data distribution of MySQL databases. In short, it is necessary to implement multi-point writability in a remote data center and ensure that the distributed data can ac

System version: CentOS 6.5 mysql version: mysql-5.5.38Production environment, if the same database server to do write service and read services, whether from security, high availability or high concurrency and other angles can not meet the actual demand, therefore, the general use of multiple database servers through master-slave replication to synchronize data t

MySQL built-in replication function is used to optimize Availability MySQL built-in replication function to optimize availability. in Soundbreak, we play live audio and video continuously 24 hours a day, so for MySQL's new replication feature, we cannot make convincing tests

In this section, we will learn how to grant user authorization and master-slave replication in Mysql. The following describes the advantages of Mysql master-slave replication: 1. if a problem occurs on the master server, you can quickly switch to the service provided by the slave server. 2. query operations can be

Label:The architecture of replication has the following basic principles:(1) Each slave can have only one master;(2) Each slave can only have a unique server ID;(3) Each master can have a lot of slave;(4) If you set Log_slave_updates,slave to be the master of other slave, it will spread the update of master. MySQL does not support multi-master server replication

/MY.CNF[mysqld]datadir=/var/lib/mysqlsocket=/var/lib/mysql/mysql.sockuser=mysql# disabling Symbolic-links is recommended To prevent assorted security Riskssymbolic-links=0log-bin=binlog #开启binlog功能log-bin-index=binlog.indexsync_binlog= 0server_id = 1 #两台机器不能重复, a 11 2 is good [mysqld_safe]log-error=/var/log/mysqld.logpid-file=/var/run/mysqld/mysqld.pid2. Configure the sync account on two machines respective

MySQL replication (1) bitsCN.com Compared with small sites, database administrators of large sites must do the following in advance: Provides a recovery plan for core business data in the event of a disaster. Theoretically, this process must be executed at least once. Provides optimization plans by collecting a large amount of user data and monitoring the load on each node of the website Rapid horizonta

MySQL replication (1) --- what is binary log bitsCN.com? Compared with small sites, database administrators of large sites must do the following in advance: Provides a recovery plan for core business data in the event of a disaster. Theoretically, this process must be executed at least once. Provides optimization plans by collecting a large amount of user data and monitoring the load on each node of the

MySQL replication can ensure the redundancy of the data and read and write separation to share the system pressure, if the primary master replication can also be good to avoid the primary node single point of failure. But there are some problems with MySQL master replication

In Soundbreak, we play live audio and video continuously 24 hours a day, so we cannot make a convincing test of the new replication feature of MySQL. Through tests, we found that this feature can be used to maintain data synchronization with the backup database server, so that when the master server fails to process for some reason, it can use the backup machine to process all queries for

Mysql storage program, function, trigger program and replication: FAQs: bitsCN.com Does MySQL 5.1 storage programs and functions work for replication?Yes, the standard behavior executed in the storage program and function is copied from the master MySQL server to the slave s

Preface Mysqlreplicaion is a simple architecture, that is, a MySQL Server (slave) replicates logs from another MySQL Server (master), then parses the logs and applies them to itself. In a replication environment, only two hosts running mysqlserver are required. In a simpler environment, we can start two mysqldinstances on the same physical server host, one is t

Mysql database master-slave replication deployment notes, mysql master-slave Principles of master-slave database replication:The master-slave replication of a database is to copy data from the master database to the slave database. The entire replication between the master a

First, the preparation (master and slave need to configure):Yum-y install MySQL mysql-server#安装mysqlYum-y Install ntpdate#安装时间同步Echo ' */1 * * * * */usr/sbin/ntpdate ntp1.aliyun.com >/dev/null '>>/var/spool/cron/root #配置网络时间同步Service mysqld start#启动服务Chkconfig--add mysqld#添加为系统服务Chkconfig mysqld on#开启默认运行级别Second, the primary server configuration: The main configuration file by default:/ETC/MY.CNF[Mysqld]Da

steps:stop slave;SET GLOBAL slave_exec_mode = ‘IDEMPOTENT‘start slave;? Again show slave status\G , you should see that the replication SQL thread from the library has returned to normal.? However, this is a non-conventional means, after the execution and the master-slave agreement, should take time to verify the data. and is not recommended to be opened directly as default parameters.Report:5.7.0 can then call idempotent as the Mysqld startup param

MySQL master-slave replication principleMaster-Slave form MySQL master-slave replication flexibility One Master one from Primary master replication One master multiple reads from the---extended system, because reads are read from the library; Multi

MySQL replication can ensure the redundancy of the data and read and write separation to share the system pressure, if the primary master replication can also be good to avoid the primary node single point of failure. But there are some problems with MySQL master replication

The advantages of MySQL replication mainly include the following 3 aspects:1. If there is a problem with the primary server, you can quickly switch to services provided from the server2. Can perform query operations from the server, reduce the access pressure on the primary server3. You can perform backups from the server to avoid services that affect the primary server during backup Note: In general, only

Questions about MySQL storage programs, functions, and replication 1. does MySQL 5.1 storage programs and functions work for replication? Yes, the standard behavior executed in the storage program and function is copied from the master MySQL server to the slave server. 2. C

MySQL master-slave replication and read/write separation2016.3.16 by linuxfan.cnEnvironment Introduction:Primary server (Master): 192.168.100.155Slave Server (slave1,slave2): 192.168.100.153-154Proxy Server (amoeba): 192.168.100.156App Client (APP): 192.168.100.157 1. Build the time server:The NTP Time service is installed on the master node: 192.168.100.155Yum-y Install NTPSed-i '/^server/s/^/#/g '/etc/ntp