proxysql 是一個比較強大的mysql proxy 服務，支持動態mysql 實例調整，查詢重寫，查詢cache，監控，數據鏡像，讀寫分離
以及ha，最近已經發布了2.0 ，很值得試用下
環境准備
- docker-compose 文件
version: "3"
services:
mysql:
image: mysql:5.7.16
ports:
- 3306:3306
command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci
environment:
MYSQL_ROOT_PASSWORD: dalongrong
MYSQL_DATABASE: test
MYSQL_USER: test
MYSQL_PASSWORD: test
TZ: Asia/Shanghai
proxysql:
image: proxysql/proxysql:2.0.5
volumes:
- "./proxysql.cnf:/etc/proxysql.cnf"
ports:
- "6033:6033"
- "6032:6032"
- proxysql.cnf 文件
主要是關於proxysql 的一些運行是配置，同時我們也可以配置mysql server 實例,以下為了簡單，直接使用配置文件的方式
datadir="/var/lib/proxysql"
admin_variables=
{
admin_credentials="admin:admin;radmin:radmin"
mysql_ifaces="0.0.0.0:6032"
}
mysql_variables=
{
threads=4
max_connections=2048
default_query_delay=0
default_query_timeout=36000000
have_compress=true
poll_timeout=2000
interfaces="0.0.0.0:6033"
default_schema="information_schema"
stacksize=1048576
server_version="5.5.30"
connect_timeout_server=3000
monitor_username="root"
monitor_password="dalongrong"
monitor_history=600000
monitor_connect_interval=60000
monitor_ping_interval=10000
monitor_read_only_interval=1500
monitor_read_only_timeout=500
ping_interval_server_msec=120000
ping_timeout_server=500
commands_stats=true
sessions_sort=true
connect_retries_on_failure=10
}
mysql_servers =
(
{
address="mysql"
port=3306
hostgroup=0
max_connections=200
}
)
mysql_users:
(
{
username = "root"
password = "dalongrong"
default_hostgroup = 0
max_connections=1000
default_schema="information_schema"
active = 1
}
)
啟動&&簡單操作
- 啟動
docker-compose up -d
- 管理連接接口
mysql -h127.0.0.1 -P6032 -uradmin -pradmin --prompt "ProxySQL Admin>"
- 簡單操作
show databases;
效果
ProxySQL Admin>show databases;
+-----+---------------+-------------------------------------+
| seq | name | file |
+-----+---------------+-------------------------------------+
| 0 | main | |
| 2 | disk | /var/lib/proxysql/proxysql.db |
| 3 | stats | |
| 4 | monitor | |
| 5 | stats_history | /var/lib/proxysql/proxysql_stats.db |
+-----+---------------+-------------------------------------+
5 rows in set (0.01 sec)
查詢mysql server
select * from main.mysql_servers\G;
效果
select * from main.mysql_servers\G;
*************************** 1. row ***************************
hostgroup_id: 0
hostname: mysql
port: 3306
gtid_port: 0
status: ONLINE
weight: 1
compression: 0
max_connections: 200
max_replication_lag: 0
use_ssl: 0
max_latency_ms: 0
comment:
1 row in set (0.00 sec)
ERROR:
No query specified
查詢運行時mysql server
select * from runtime_mysql_servers\G;
*************************** 1. row ***************************
hostgroup_id: 0
hostname: mysql
port: 3306
gtid_port: 0
status: ONLINE
weight: 1
compression: 0
max_connections: 200
max_replication_lag: 0
use_ssl: 0
max_latency_ms: 0
comment:
1 row in set (0.01 sec)
- 應用連接
應用連接的端口為6033
連接方式：
mysql -h127.0.0.1 -P6033 -uroot -pdalongrong
簡單查詢
select * from rongdemo.usersinfo;
+----------+--------+
| username | userid |
+----------+--------+
| dalong | 1 |
+----------+--------+
1 row in set (0.00 sec)
說明
proxysql 功能是比較強大的，性能也很不錯，對於同時提供了管理以及連接地址，暴露為標准的mysql 協議，對於配置的生效
並不是添加mysql server 實例到main.mysql_servers 就可以了，需要到runtime ,同時還需要配置進行持久化，相關命令有
LOAD MYSQL USERS TO RUNTIME;
SAVE MYSQL USERS TO DISK;
LOAD MYSQL SERVERS TO RUNTIME;
SAVE MYSQL SERVERS TO DISK;
LOAD MYSQL QUERY RULES TO RUNTIME;
SAVE MYSQL QUERY RULES TO DISK;
LOAD MYSQL VARIABLES TO RUNTIME;
SAVE MYSQL VARIABLES TO DISK;
LOAD ADMIN VARIABLES TO RUNTIME;
SAVE ADMIN VARIABLES TO DISK;
對於proxysql，社區也提供了好多方便的監控工具，比如exporter ，方便與promethues 集成
對應官方的dockerfile 文件
FROM debian:stretch
MAINTAINER Nikolaos Vyzas <nick@proxysql.com>
RUN apt-get update && apt-get install -y wget lsb-release gnupg apt-transport-https ca-certificates && wget -O - 'https://repo.proxysql.com/ProxySQL/repo_pub_key' | apt-key add - && echo deb https://repo.proxysql.com/ProxySQL/proxysql-2.0.x/$(lsb_release -sc)/ ./ | tee /etc/apt/sources.list.d/proxysql.list && apt-get update && apt-get install proxysql=2.0.5 && rm -rf /var/lib/apt/lists/*
ENTRYPOINT ["proxysql", "-f", "-D", "/var/lib/proxysql"]
參考資料
https://github.com/sysown/proxysql/wiki/Configuring-ProxySQL
https://github.com/sysown/proxysql
https://github.com/rongfengliang/proxysql-docker-compose
https://hub.docker.com/r/proxysql/proxysql