maxscale

Tags: save transparent IDE Another best character cat height Center1.What is Maxscale? After configuring MySQL 's master-slave replication structure, we want to implement read-write separation, spread the reads to the slave server, and load balance multiple slave servers. read-write separation and load balancing are the basic requirements of MySQL cluster, and Maxscale can help us to implement these functi

Brief introduction:As a database middleware, Maxscale has the function of high-performance read-write separation and load balancing db router. Since MARIADB adopted the deferred open source policy after the 1.4.4 release, there has been no plan to deploy the test online, and recently discovered that Atlas on the line has the disadvantage of PHP connectivity, so the installation tested Maxscale.Please refer to the official wiki for the introduction of

deployment trouble, but also write your own script, you can use Mha_helperWeb:https://github.com/ovaistariq/mha-helperSql-aware Load Balancer: MySQL Proxy: The official does not maintain the MySQL Router: Official maintenance, relatively simple Maxscale: Plug-in, customized and flexible, automatic detection of MySQL master failure Amoeba: Supports SQL filtering, read/write separation, sharding, MySQL Failover not supported Co

Label:This article is based on the Dbaplus community's 67th phase of the online sharing This share mainly includes the following content: 1. mysql High-availability Program 2. Why Choose MHA 3, read-write separation scheme and why choose Maxscale One, MySQL failover program Common Failover Scenarios MMM Mmm Cons: The monitor node is a single point that can be combined with keepalived to achieve a highly available solutio

650) this.width=650; "src=" http://s1.51cto.com/wyfs02/M02/8A/FD/wKioL1hBB47ilTJoAAA4pG6yXEQ736.jpg "title=" icon 2. JPG "alt=" Wkiol1hbb47iltjoaaa4pg6yxeq736.jpg "/>Maxscale Binlog Server Practice Brief Part1 : write at the top In the previous blog post about Maxscale, as a middleware, with MHA use or master-slave use can achieve read and write separation and load balancing, today a brief introd

Maxscale is one of MariaDB's products, it is easy to implement read/write separation scheme, and provides load balancing and high availability guarantee for read and write separation.First, installation configuration mysql Master and slave, maxscale will Judging by the master-slave Copying of information master and slave Note: MySQL can not be configured to master from, if mutual master from, bot

name #只允许同步的库binlog_ignore_db = database name, database name #只不允许同步的库Mysql> Show Master stauts;Configuration parameters from the library role host[Mysqld]Log_slave_updates Cascade Replicationreplicate_do_db= database name, database name #只同步的库replicate_ignore_db= database name, database name #只不同步的库relay_log = file name #设置中继日志文件名称+++++++++++++++++++++++++++++Second, the data read and write separation2.1 Introduction to read/write separation? The operation of the client's query record and the

software has not Most of the same features are open source (Mysql-proxy mysql-mmm Mycat maxscale*) Master-Slave synchronous structure (one-from-one)Requirement: Configure database server 11 as the slave server for database server 12. 1. Configuration 121.1 User Authorization1.2 Enable Binlog Logging 2. Configuration 112.1 Testing Authorized users2.2 Setting server_id2.3 Administrator account login, set yourself to 12 from the database server2.4 Viewi

from the library (only valid from the library itself) Log_slave_updates//Allow cascade replication relay_log= file name//Specify the name of the trunk log file replicate_do_db= Library Name list, interval symbol #只同步的库 replicate_ignore_db= Library Name list, interval symbol #只不同步的库 ************************************************************************************* Second, data read/write separation (Maxscale software + one master one from the struc

]binlog_do_db= database name, database name #只允许同步的库binlog_ignore_db = database name, database name #只不允许同步的库Mysql> Show Master stauts;Configuration parameters from the library role host[Mysqld]Log_slave_updates Cascade Replicationreplicate_do_db= database name, database name #只同步的库replicate_ignore_db= database name, database name #只不同步的库relay_log = file name #设置中继日志文件名称+++++++++++++++++++++++++++++Second, the data read and write separation2.1 Introduction to read/write separation? The operation

Tags: MySQL maxscale middleware 之前在[《MySQL性能管理及架构设计》请添加链接描述](https://coding.imooc.com/class/49.html)课程中为大家讲解了如何使用Maxscale来实现数据库的读写分离的方案。近期在课程交流群中有同学提出在使用Maxscale2.2版本时，无法自动加载MySQL5.7中的用户信息。 所以我就研究了一下新版本的Maxscale，发现确实如此，这是什么原因呢？由如何解决这个问题呢？Let's start by saying why, let's take a look at the following SQLSELECT U.user, U.host, D.db, U.select_priv, u.authentication_s

Tags: databaseConfigure a master-slave synchronization structure and test the configuration on the clientMaster51> Grant all on webdb.* to [e-mail protected] "%" identified by "123456"; Loading packageRPM-IVH maxscale-2.1.2-1.rhel.7.x86_64.rpm [Email protected] ~]# Rpm-qa | grep MaxscaleMaxscale-2.1.2-1.x86_64 [Email protected] ~]# RPM-QC Maxscale/etc/maxscale.cnf.template [Email protected] ~]#Modifying a c

the copy structure reference to the previous course, here no longer repeat.1.3 Steps The implementation of this case needs to follow the steps below. Step one: Deploy the Mysql-proxy proxy server 1) Install the MARIADB official Maxscale package To modify a configuration file: [[emailprotected] pub]# [[emailprotected] ~]# grep-e-V ' ^# '/etc/maxscale.cnf [Maxscale] Threads=1 [Server1 ] #指定ip地址对应的名字 type=se

Log index file master-slave synchronization mode one main slave from one master from main---(Master---from)/1 is the Master of 2, 2 is 1 from and 3 is the main, 3 is 2 from main main structure (mutual master from) main Library configuration file (valid for all slave servers) only allow synchronization of libraries binlog_do_db= Library 1, library 2 does not allow the synchronization of the library binlog_ignore_db= Library 1, library 2 from the library configuration file only allow the synchron

Tags: x86_64 tor cat Grant serve ast Replicat kill syncFirst, Preface: The basic principle of reading and writing separationThe basic principle of MySQL's read-write separation is to have master (the primary database) respond to transactional operations,Let slave (from the database) respond to select non-transactional operations,Then, master-slave replication is used to synchronize transactional operations on master to the slave database. achieve simple load balancing.Second, pre-preparatory wor

; /** * Screen width */private int displaywidth; /** * Minimum scaling ratio/protected float Minscale = 1f; /** * Maximum scaling ratio * * protected float Maxscale = 3f; /** * Current ZOOM ratio * * Protected float Currentscale = 1f; /** * Multi-point Touch 2 touch points between the starting distance * * Private float olddist; /** * Multi-point touch when the picture's starting angle * * Private float oldrotation = 0; /** * Rotary Angl

Touchimageview inherits all the functions of the ImageView with ImageView, in addition to scaling, drag, double-click Zoom, and other functions, support Viewpager and ScaleType, and accompanied by animation effect. sharedconstructing private void sharedconstructing (context context) { super.setclickable (true); This.context = context; Mscaledetector = new Scalegesturedetector (context, new Scalelistener ()); Mgesturedetector = new Gesturedetector (context, new Gesturelistener ()); Matrix

}Options = util. extend (defaultOptions, options); // parameter settingsThis. container = util. $ (id );This. width = options. width;This. height = options. height;ImgWidth = this. imgWidth = options. imgWidth;ImgHeight = this. imgHeight = options. imgHeight;This. maxScale = options. maxScale;This. minScale = options. minScale;ScaleMargin = this. maxScale-this.mi

server-Provide read and write services, and balanced traffic-Maintain consistency through master-slave replication2. Client-facing by MySQL agent-When a SQL write request is received, submit it to server A for processing-When a SQL read request is received, it is given to Server B for processing-specific policy is set by serviceBuild MySQL read-write separation1. Build MySQL master-slave replication-slave as read-only2. Add a MySQL proxy server-Deploy/Enable Maxscale3. Client access to MySQL da

MySQL master-slave replication + proxy: Client Access Proxy Server, read,write request to proxy recognition, thereby reducing the complexity of the client program. "192.168.4.10, 192.168.4.11 as MySQL master, slave server, is the backend of the entire serviceAnother 192.168.4.15 as a MySQL proxy server "First, deploy Mysql-proxy proxy Server[Email protected] ~]# RPM-IVH maxscale-2.1.2-1.rhel.7.x86_64.rpm1. Modify the configuration file[[Email protecte