proxysql

Tags: return middle set expiration by value SQL query%s definitionBack to Proxysql series article: http://www.cnblogs.com/f-ck-need-u/p/7586194.html Proxysql supports the ability of query caching to cache the result set returned by the backend in its own memory, and before the cache entry for a query is cleaned up (for example, expired), the front end initiates the same query statement, fetching the data d

Tags: mysql read/write separate read/write separation proxysql proxysql read/write separate MySQL ProxysqlProxysql Introduction: Proxysql is a high-performance MySQL middleware with a powerful rules engine. Detailed Chinese Introduction: Other people write, basically with the official no difference Official Document: https://github.com/sysown/

A brief analysis of "MySQL" and "Proxysql" mysql_users table 1. Table definition and the DDL definition of the field description table:CREATE TABLE mysql_users (username varchar not NULL, #用户名 password varchar, #密码 active INT CHECK (AC tive in (0,1)) is not NULL for default 1, #是否启用 Use_ssl INT CHECK (Use_ssl in (0,1)) is not null default 0, #是否使用SSL连接 def Ault_hostgroup INT not NULL DEFAULT 0, #默认查询路由组 Default_schema VARCHAR, # Default database schem

Tags: CEP boot into compute DMI Check SSI free replicaThread of 1.ProxySQLProxysql consists of multiple modules and is a multithreaded daemon class program. Each module has one or more threads to perform the task.For example, the following is the process when the Proxysql was started, a main process, a main thread, and 21 threads.[[emailprotected] ~]# pstree | grep proxy |-proxysql---

Proxysql Introduction:ProxySQL是一个高性能的MySQL中间件，拥有强大的规则引擎。官方文档：https://github.com/sysown/proxysql/wiki/：https://github.com/sysown/proxysql/releases/Environment:系统：CentOS7.5ProxySQL版本：proxysql-1.4.8-1-centos7.x86_64.rpmMysql版本：MySQL 5.7.22ProxySQL主机IP：192.168.1.2Mysql主库IP：192.168.1.3Mysql从库IP：192.168.1.4Prerequisites:防火墙和

Tags: Moni phantom read Query pass for ROC Grant MySQL middleware selfBrothers, after a few days old Zhang and meet you again. Every time we meet, there will be good news to tell you, this time is no exception. Some time ago published the "MySQL King Promotion Road," a book, the response is good. Try to publish a book on MongoDB OPS this year that will serve as a reference for those students who want to learn about NoSQL.Now in the World Cup, Lao Zhang's favorite team is Portugal-love Cristiano

Tags: www. Way Targe group Restart read Data ref article1.ProxySQL IntroductionIn the previous article, a MySQL middleware was introduced: MySQL Router. For more information, see MySQL router for read/write separation of MySQL. Here's a series of details about a MySQL middleware that can actually be used in a production environment: Proxysql. It has two versions: the official version and the Percona version

Tags: stack port SSE hold Replicat explain host read confLibraries in 1.ProxySQLUse Proxysql's admin management interface to connect to Proxysql to see the libraries owned by Proxysql. mysql -uadmin -padmin -h127.0.0.1 -P6032 --prompt 'admin> ' admin> show databases; +-----+---------------+-------------------------------------+ | seq | name | file | +-----+-----------

The document structure is as follows:1, Proxysql descriptionProxysql is a MySQL middleware product, is a flexible MySQL proxy layer, can realize the read-write separation, support the function of the query router, support dynamically specify SQL for caching, support dynamic load configuration, failover and some SQL filtering functions.Other products: Dbproxy,mycat,oneproxy and so on.2. Mha+proxysql reading

PROXYSQL+MHA's respective structures are no longer described here. Concrete construction can be self-Google, but note that MHA in the failover of the time do not need to do VIP switching operations.Environment configuration information master:172.16.3.5:3307 Slave 172.16.3.6:3307 172.16.3.7:3306 172.16.3.6:3307 proxysql:172.16.3.15

Get ready:4 VMS (CentOS 7.3): 192.168.1.120 proxysql 192.168.1.121 node1 master 192.168.1.122 Node2 slave 192.168.1.123 node3 SlaveI. Installing MARIADB in NODE1,NODE2,NODE3, Mariadb-server(installed as root user)1. Yum installationYum Install mariadb mariadb-server-y2. Start the service# Systemctl Start Mariadb.serviceBoot up3. Configure the Administrator password# mysql_secure_installation4. Configure remote access (MySQL prom

Admin management interface for 1.ProxySQLWhen Proxysql is started, it listens on two ports: (1). Admin management interface, default port is 6032. This port is used to view, configure Proxysql. (2). The interface that receives the SQL statement, the default port is 6033, and this interface is similar to the 3306 port of MySQL. Proxysql Admin Int

Tags: linux, mysqlThis experiment uses a master one from one agent, three devices, the specific steps are as follows:1, complete the configuration of master-slave replication, please refer to this article http://panpangao.blog.51cto.com/10624093/19814182. Install the Proxysql package on the proxy server proxysql-1.4.2-1-centos7.x86_64.rpmRPM-QL proxysql #软件安装后生成的

Tags: hang debug related operations serve IDE specified ROM redThe Proxysql admin interface supports the MySQL protocol, which can be configured via the client connection to the Admin interface and input commands. Proxysql parse all the commands sent over the admin interface, and if there is no problem, it will happen to SQLite engine execution Remember the difference between SQLite3 and MySQL, not that all

Proxysql Monitoring and statisticsA lot of valuable statistics are in the stats and monitor libraries.[Emailprotected] [(None)]>show TABLES from stats;+--------------------------------------+| Tables |+--------------------------------------+| Global_variables | | Stats_memory_metrics | | Stats_mysql_commands_counters | | Stats_mysql_connection_pool | | Stats_mysql_connection_pool_reset | | Stats_mysql_global | | Stats_mysql_prepared_statements_info |

Tags: mysql master and slave copy MySQL read/write separationI. DescriptionEarlier we said MySQL installation configuration (and provide a one-click installation script), MySQL statement use and backup to restore MySQL data; this is mainly about MySQL master-slave replication, read and write separation, and high-availability MHA;The environment is as follows:master:centos7_x64 mysql5.721 172.16.3.175 DB1slave1:centos7_x64 mysql5.7.21 172.16.3.235 DB2slave2:centos7_x64 mysql5.7.21 172.16.3.235 db

modified, which will cause the database replication error. It is therefore necessary to use specialized tools to clean up the logs.Command purge:Format: PURGE master| BINARY LOGS to ' log_name '2. Replication MonitoringMain Library:? SHOW MASTER STATUS;? SHOW BINLOG EVENTS;? SHOW BINARY LOGS;From library:? SHOW SLAVE Status\g;The Seconds_behind_master parameter indicates how long it takes to lag behind the main library from the library. To resolve the problem of master-slave data inconsistency,

is responsible for maintenance, but also dual licensing, but the configuration interface is inconvenient to use.Proxysql: Is the DBA team developed, high-performance open source MySQL proxy server middle layer, this is a better choice, 8 performance introduction See Official Website: http://www.proxysql.com/. Code hosted on GitHub:Https://github.com/sysown/proxysql/releasesAlisql: Developed by Ali Corporation. Already open source.If you do not use th

* * to ' James ' @ ' percent ' identified by ' YTC '; Query OK, 0 rows affected (0.01 sec)2. Slave: (two Slave perform the same operation)Specify Master:MariaDB [(none)]> change master to master_host= ' 172.16.75.1 ', master_user= ' James ', master_password= ' YTC ', master_ Port=3306,master_log_file= ' binlog.000042 ', master_log_pos=387;View slave Status:3. Create a database named Wade on the primary server and view it from the server side:1) Master:MariaDB [(None)]> create Database Wade; Que

-TNLState recv-q send-q Local address:port Peer address:portLISTEN 0 *:3306 *:*LISTEN 0 *:111 *:*LISTEN 0 5 192.168.122.1:53 *:*LISTEN 0 *:22 *:*LISTEN 0 127.0.0.1:631 *:*LISTEN 0 127.0.0.1:25 *:*LISTEN 0 172.16.0.155:40001 *:*LISTEN 0 128 172.16.0.155:40002 Mysqlrouter Test Example: (Because the mysqlrouter is dispatched to the backend, so we need to authorize users in the master) MariaDB [(None)]> grant all on * * to ' CCCC ' @ ' 172.16.0.% ' identified by ' 111111 '; Query OK, 0 rows a