Meituan-Dianping의 DBProxy 읽기-쓰기 분리 사용 지침 문서에 사용 목적이 설명되어 있습니다. 이 문서에서는 ProxySQL 사용 방법과 DBProxy와의 성능 차이를 소개합니다. 자세한 소개는 공식 홈페이지의 관련 안내를 참고하시기 바라며, 본 미들웨어 역시 퍼코나에서 추천하는 미들웨어입니다. 읽기와 쓰기를 분리하는 다른 미들웨어와 기능은 크게 다르지 않습니다. 자세한 내용은 기사에서 소개하겠습니다. 이 문서에서는 사용 중 몇 가지 지침을 간략하게 소개합니다. 공식 위키에서 도움말을 확인할 수도 있습니다.
환경:
배포자 ID: Ubuntu
설명: Ubuntu 14.04.5 LTS
릴리스: 14.04코드 이름: trusty
Download
percona 사이트:
https://www.percona.com/downloads/proxysql/
github/공식 웹사이트:
https://github.com/sysown/proxysql/releases
먼저 환경을 살펴보겠습니다.
master:172.16.16.35:3306slave:172.16.16.35:3307slave:172.16.16.34:3307
MHA 관리자는 172.16.16.34에 있고 구성 파일은 다음과 같습니다.
[root@localhost bin]# cat /etc/masterha/app1.cnf [server default] manager_log=/var/log/mha/app1/manager.log manager_workdir=/var/log/mha/app1.log master_binlog_dir=/home/mysql/db3306/log/master_ip_failover_script=/usr/local/bin/master_ip_failover master_ip_online_change_script=/usr/local/bin/master_ip_online_change password=123456ping_interval=1remote_workdir=/tmp repl_password=123456repl_user=root report_script=/usr/local/bin/send_report shutdown_script=""ssh_user=root user=root [server1] hostname=172.16.16.35port=3306[server2] candidate_master=1check_repl_delay=0hostname=172.16.16.34port=3306[server3] hostname=172.16.16.35port=3307
[root@localhost bin]# sudo yum install http://www.percona.com/downloads/percona-release/redhat/0.1-4/percona-release-0.1-4.noarch.rpm[root@localhost bin]# yum install proxysql
Installed: proxysql.x86_64 0:1.3.7-1.1.el6 Complete!
[root@localhost bin]# find / -name proxysql/var/lib/proxysql/var/run/proxysql/etc/rc.d/init.d/proxysql/usr/bin/proxysql
[root@localhost bin]# cat /etc/proxysql-admin.cnf # proxysql admin interface credentials. export PROXYSQL_USERNAME="admin"export PROXYSQL_PASSWORD="admin"export PROXYSQL_HOSTNAME="localhost"export PROXYSQL_PORT="6032" # PXC admin credentials for connecting to pxc-cluster-node. export CLUSTER_USERNAME="admin"export CLUSTER_PASSWORD="admin"export CLUSTER_HOSTNAME="localhost"export CLUSTER_PORT="3306" # proxysql monitoring user. proxysql admin script will create this user in pxc to monitor pxc-nodes. export MONITOR_USERNAME="monitor"export MONITOR_PASSWORD="monit0r" # Application user to connect to pxc-node through proxysql export CLUSTER_APP_USERNAME="proxysql_user"export CLUSTER_APP_PASSWORD="passw0rd" # ProxySQL read/write hostgroup export WRITE_HOSTGROUP_ID="10"export READ_HOSTGROUP_ID="11" # ProxySQL read/write configuration mode. export MODE="singlewrite"
[root@localhost bin]# proxysql-admin --config-file=/etc/proxysql-admin.cnf --enable This script will assist with configuring ProxySQL (currently only Percona XtraDB cluster in combination with ProxySQL is supported) ProxySQL read/write configuration mode is singlewrite ProxySQL is not running; please start the proxysql service
[root@localhost bin]# service proxy proxy proxysql proxysql-admin proxysql_galera_checker proxysql_node_monitor [root@localhost bin]# service proxysql start Starting ProxySQL: DONE![root@localhost bin]# mysql -uadmin -padmin -h127.0.0.1 -P6032 mysql: [Warning] Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1Server version: 5.7.14 (ProxySQL Admin Module) Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
[root@localhost bin]# find / -name proxysql.cnf/etc/proxysql.cnf
[root@localhost bin]# mysql -uadmin -padmin -h127.0.0.1 -P6032 mysql: [Warning] Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2Server version: 5.7.14 (ProxySQL Admin Module) Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> show databases;+-----+---------+-------------------------------+ | seq | name | file | +-----+---------+-------------------------------+ | 0 | main | | | 2 | disk | /var/lib/proxysql/proxysql.db | | 3 | stats | | | 4 | monitor | | +-----+---------+-------------------------------+4 rows in set (0.00 sec) mysql> use admin Database changed mysql> show tables;+--------------------------------------+ | tables | +--------------------------------------+ | global_variables | | mysql_collations | | mysql_query_rules | | mysql_replication_hostgroups | | mysql_servers | | mysql_users | | runtime_global_variables | | runtime_mysql_query_rules | | runtime_mysql_replication_hostgroups | | runtime_mysql_servers | | runtime_mysql_users | | runtime_scheduler | | scheduler | +--------------------------------------+13 rows in set (0.00 sec)
mysql> insert into mysql_servers(hostgroup_id,hostname,port,weight,max_connections,max_replication_lag,comment) values(100,'172.16.16.35',3306,1,1000,10,'test'); Query OK, 1 row affected (0.00 sec) mysql> insert into mysql_servers(hostgroup_id,hostname,port,weight,max_connections,max_replication_lag,comment) values(101,'172.16.16.34',3306,1,1000,10,'test'); Query OK, 1 row affected (0.00 sec) mysql> insert into mysql_servers(hostgroup_id,hostname,port,weight,max_connections,max_replication_lag,comment) values(101,'172.16.16.35',3307,1,1000,10,'test'); Query OK, 1 row affected (0.00 sec) mysql> select * from mysql_servers;+--------------+--------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+ | hostgroup_id | hostname | port | status | weight | compression | max_connections | max_replication_lag | use_ssl | max_latency_ms | comment | +--------------+--------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+ | 100 | 172.16.16.35 | 3306 | ONLINE | 1 | 0 | 1000 | 10 | 0 | 0 | test | | 101 | 172.16.16.34 | 3306 | ONLINE | 1 | 0 | 1000 | 10 | 0 | 0 | test | | 101 | 172.16.16.35 | 3307 | ONLINE | 1 | 0 | 1000 | 10 | 0 | 0 | test | +--------------+--------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+3 rows in set (0.00 sec)
mysql> insert into mysql_replication_hostgroups values(100,101,'masterha') ; Query OK, 1 row affected (0.00 sec) mysql> select * from mysql_replication_hostgroups;+------------------+------------------+----------+ | writer_hostgroup | reader_hostgroup | comment | +------------------+------------------+----------+ | 100 | 101 | masterha | +------------------+------------------+----------+1 row in set (0.00 sec)
mysql> GRANT SUPER, REPLICATION CLIENT ON *.* TO 'proxysql'@'172.16.16.%' IDENTIFIED BY 'proxysql'; Query OK, 0 rows affected, 1 warning (0.09 sec) mysql> flush privileges; Query OK, 0 rows affected (0.10 sec)
mysql> set mysql-monitor_username='proxysql'; Query OK, 1 row affected (0.00 sec) mysql> set mysql-monitor_password='proxysql'; Query OK, 1 row affected (0.00 sec) mysql> load mysql variables to runtime; Query OK, 0 rows affected (0.00 sec) mysql> save mysql variables to disk; Query OK, 74 rows affected (0.02 sec)
mysql> insert into mysql_users(username,password,active,default_hostgroup,transaction_persistent) values('root','123456',1,100,1); Query OK, 1 row affected (0.00 sec) mysql> select * from mysql_users;+----------+----------+--------+---------+-------------------+----------------+---------------+------------------------+--------------+---------+----------+-----------------+ | username | password | active | use_ssl | default_hostgroup | default_schema | schema_locked | transaction_persistent | fast_forward | backend | frontend | max_connections | +----------+----------+--------+---------+-------------------+----------------+---------------+------------------------+--------------+---------+----------+-----------------+ | root | 123456 | 1 | 0 | 100 | NULL | 0 | 1 | 0 | 1 | 1 | 10000 | +----------+----------+--------+---------+-------------------+----------------+---------------+------------------------+--------------+---------+----------+-----------------+1 row in set (0.00 sec)
mysql> load mysql servers to runtime; Query OK, 0 rows affected (0.01 sec) mysql> save mysql servers to disk; Query OK, 0 rows affected (0.08 sec) mysql> load mysql users to runtime; Query OK, 0 rows affected (0.00 sec) mysql> save mysql users to disk; Query OK, 0 rows affected (0.03 sec)
mysql> INSERT INTO mysql_query_rules(active,match_pattern,destination_hostgroup,apply) VALUES(1,'^SELECT.*FOR UPDATE$',100,1); Query OK, 1 row affected (0.01 sec) mysql> INSERT INTO mysql_query_rules(active,match_pattern,destination_hostgroup,apply) VALUES(1,'^SELECT',101,1); Query OK, 1 row affected (0.00 sec) mysql> LOAD MYSQL QUERY RULES TO RUNTIME; Query OK, 0 rows affected (0.00 sec) mysql> SAVE MYSQL QUERY RULES TO DISK; Query OK, 0 rows affected (0.04 sec)
[root@localhost ~]# mysql -uroot -p123456 -h172.16.16.34 -P6033 mysql: [Warning] Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 22Server version: 5.7.14 (ProxySQL) Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> select * from maxiangqian.test;+-----+------+ | id | name | +-----+------+ | 1 | qq | | 2 | qq | | 4 | aa | | 11 | a | | 111 | a | +-----+------+5 rows in set (0.04 sec)
mysql> select * from stats_mysql_query_digest;
mysql> select @@server_id;+-------------+ | @@server_id | +-------------+ | 353307 | +-------------+1 row in set (0.01 sec)서버 ID가 슬레이브 데이터베이스 172.16.16.35:3307로 라우팅되었는지 확인하세요.
mysql> select * from maxiangqian.test for update;+-----+------+ | id | name | +-----+------+ | 1 | qq | | 2 | qq | | 4 | aa | | 11 | a | | 111 | a | +-----+------+5 rows in set (0.00 sec)
mysql> select * from stats_mysql_query_digest;
위 내용은 사용할 구성에서 ProxySQL 읽기-쓰기 분리의 상세 내용입니다. 자세한 내용은 PHP 중국어 웹사이트의 기타 관련 기사를 참조하세요!