真实的国产乱ⅩXXX66竹夫人,五月香六月婷婷激情综合,亚洲日本VA一区二区三区,亚洲精品一区二区三区麻豆

成都創(chuàng)新互聯(lián)網(wǎng)站制作重慶分公司

ProxySQL

proxysql的作用

站在用戶的角度思考問題，與客戶深入溝通，找到南沙網(wǎng)站設(shè)計(jì)與南沙網(wǎng)站推廣的解決方案，憑借多年的經(jīng)驗(yàn)，讓設(shè)計(jì)與互聯(lián)網(wǎng)技術(shù)結(jié)合，創(chuàng)造個(gè)性化、用戶體驗(yàn)好的作品，建站類型包括：成都做網(wǎng)站、網(wǎng)站設(shè)計(jì)、外貿(mào)營(yíng)銷網(wǎng)站建設(shè)、企業(yè)官網(wǎng)、英文網(wǎng)站、手機(jī)端網(wǎng)站、網(wǎng)站推廣、域名與空間、雅安服務(wù)器托管、企業(yè)郵箱。業(yè)務(wù)覆蓋南沙地區(qū)。


1.讀寫分離，server可以進(jìn)行分讀組和寫組

2.動(dòng)態(tài)指定某一個(gè)SQL進(jìn)行cache

3.故障切換，依賴于他的配置動(dòng)態(tài)加載，但是不能自動(dòng)選主，需要依賴keepalived和MHA

4.配置動(dòng)態(tài)更新

5.一個(gè)節(jié)點(diǎn)可以跑很多proxysql

6.percona公司的proxy

proxysql端口

監(jiān)控的端口號(hào)：6633

管理端口號(hào)：6032

安裝下載

[root@Darren1 tmp]# wgethttps://github.com/sysown/proxysql/releases/download/v1.4.0/proxysql-1.4.0-1-centos67.x86_64.rpm

[root@Darren1 tmp]# rpm -ivh proxysql-1.4.0-1-centos67.x86_64.rpm

[root@Darren1 tmp]# /etc/init.d/proxysql start

[root@Darren1 tmp]# ps -ef |grep proxy       

root      50769      1  0 05:19 ?        00:00:00 proxysql -c /etc/proxysql.cnf -D /var/lib/proxysql   

root      50770  50769  3 05:19 ?        00:00:00 proxysql -c /etc/proxysql.cnf -D /var/lib/proxysql

root      50798  50261  0 05:20 pts/3    00:00:00 grep proxy

#登陸：

[root@Darren1 proxysql]# MySQL -u admin -padmin -h 127.0.0.1 -P6032 --prompt='Admin> '

Admin> show databases;

+-----+---------+-------------------------------+

| seq | name    | file                          |

+-----+---------+-------------------------------+

| 0   | main    |                               |

| 2   | disk    | /var/lib/proxysql/proxysql.db |

| 3   | stats   |                               |

| 4   | monitor |                               |

+-----+---------+-------------------------------+


多層配置系統(tǒng)

（1）允許自動(dòng)更新配置

（2）大部分配置無需重啟，在運(yùn)行狀態(tài)配置生效

（3）允許回滾錯(cuò)誤的配置

三層結(jié)構(gòu)圖：

ProxySQL

[1] LOAD MYSQL USERS FROM MEMORY / LOAD MYSQL USERS TO RUNTIME

loads MySQL users from the in-memory database to the runtime data structures

[2] SAVE MYSQL USERS TO MEMORY / SAVE MYSQL USERS FROM RUNTIME

persists the MySQL users from the runtime data structures to the in-memory database

[3] LOAD MYSQL USERS TO MEMORY / LOAD MYSQL USERS FROM DISK

loads MySQL users from the on-disk database to the in-memory database

[4] SAVE MYSQL USERS FROM MEMORY / SAVE MYSQL USERS TO DISK

persists the MySQL users from the in-memory database to the on-disk database

[5] LOAD MYSQL USERS FROM CONFIG

loads from the configuration file the users into the in-memory database

適用于表：

  mysql_users mysql_servers

  mysql_query_rules  

  mysql_variables  

  admin_variables

scheduler計(jì)劃任務(wù)

scheduler是類似cron的任務(wù)調(diào)度計(jì)劃，允許運(yùn)行自定義腳本。

主要有兩個(gè)表：

admin@127.0.0.1 [main]>SHOW TABLES LIKE '%scheduler%';

+-------------------+

| tables            |

+-------------------+

| scheduler         |

| runtime_scheduler |

+-------------------+

scheduler ：可以用來設(shè)置調(diào)度計(jì)劃

runtime_scheduler：只讀，不能配置修改

admin@127.0.0.1 [main]> SHOW CREATE TABLE scheduler\G

*************************** 1. row ***************************

       table: scheduler

Create Table: CREATE TABLE scheduler (

    id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,

    active INT CHECK (active IN (0,1)) NOT NULL DEFAULT 1,

    interval_ms INTEGER CHECK (interval_ms>=100 AND interval_ms<=100000000) NOT NULL,

    filename VARCHAR NOT NULL,

    arg1 VARCHAR,

    arg2 VARCHAR,

    arg3 VARCHAR,

    arg4 VARCHAR,

    arg5 VARCHAR,

    comment VARCHAR NOT NULL DEFAULT '')

In details:

id : unique identifier of the scheduler job

active : if set to 1, the job is active. Otherwise is not

interval_ms : how often (in millisecond) the job will be started. Minimum interval_ms is 100 milliseconds

filename : full path of the executable to be executed

arg1 to arg5 : arguments (maximum 5) that can be passed to the job

comment : an free form text field to annotate the purpose of the job

用戶配置Users Configuration


定義一個(gè)新的用戶：

admin@127.0.0.1 [main]>INSERT INTO mysql_users(username,password) VALUES ('user1','password1');

創(chuàng)建一個(gè)由hostgroup，schema的用戶：

admin@127.0.0.1 [main]>INSERT INTO mysql_users(username,password,default_hostgroup,default_schema) VALUES ('user2','password2',10,'sbtest1');


修改user2用戶的最大連接數(shù)為100個(gè)：

admin@127.0.0.1 [main]>UPDATE mysql_users SET max_connections=100 WHERE username='user2';

修改事務(wù)持久化：

admin@127.0.0.1 [main]> UPDATE mysql_users SET transaction_persistent=1 WHERE username='user2';

密碼hash加密：

admin@127.0.0.1 [main]>load mysql users to runtime;

admin@127.0.0.1 [main]>save mysql users from runtime;

admin@127.0.0.1 [main]>save mysql users to disk;

服務(wù)配置 （server configuration ）

1、往mysql_servers表中添加server時(shí)就為其劃分好hostgroup_id（例如0表示寫組，1表示讀組）

2、往mysql_servers表中添加server時(shí)不區(qū)分hostgroup_id（例如全部設(shè)為0），然后通過mysql_replication_hostgroups表中的值，根據(jù)proxysql檢測(cè)到的各server的read_only變量值來自動(dòng)為后端server設(shè)置hostgroup_id

    強(qiáng)烈推薦用第一種方式： 因?yàn)榈谝环N是完全由我們控制的;而第二種假如我們誤將讀server的read_only屬性設(shè)置為0，則proxysql會(huì)將其重新分配到寫組，這絕對(duì)是不期望的。

（1）添加一個(gè)新的服務(wù)：

admin@127.0.0.1 [main]>insert into mysql_servers(hostgroup_id,hostname,max_connections) values(0,'192.168.91.23',1000);

admin@127.0.0.1 [main]>insert into mysql_servers(hostgroup_id,hostname,max_connections) values(1,'192.168.91.22',1000);

admin@127.0.0.1 [(none)]>select * from mysql_servers;

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

| hostgroup_id | hostname      | port | status | weight | compression | max_connections | max_replication_lag | use_ssl | max_latency_ms | comment |

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

| 0            | 192.168.91.23 | 3306 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |

| 1            | 192.168.91.22 | 3306 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

（2）修改限制連接數(shù)max_connections ：

admin@127.0.0.1 [main]>UPDATE mysql_servers SET max_connections=10 WHERE hostname='192.168.91.23';

（3）修改權(quán)重值weight：

例如：一主兩從的環(huán)境，設(shè)置不同的權(quán)重：

Admin> SELECT hostgroup_id,hostname,weight,max_replication_lag FROM mysql_servers;

+--------------+------------+--------+---------------------+

| hostgroup_id | hostname   | weight | max_replication_lag |

+--------------+------------+--------+---------------------+

| 0            | 172.16.0.1 | 1000   | 30                  |

| 1            | 172.16.0.2 | 1000   | 30                  |

| 1            | 172.16.0.3 | 1000   | 30                  |

| 1            | 172.16.0.1 | 1      | 30                  |

+--------------+------------+--------+---------------------+

上面的情況，如果有讀事物，99.95%將會(huì)發(fā)送給172.16.0.2和172.16.0.3主機(jī)上，0.05%會(huì)發(fā)送到172.16.0.1主機(jī)上，如果172.16.0.2和172.16.0.3變得不可用了，則所有的讀會(huì)有172.16.0.1承擔(dān)

（4）修改復(fù)制延時(shí)最大值max_replication_lag ：

admin@127.0.0.1 [main]>UPDATE mysql_servers SET max_replication_lag=30 WHERE hostname='192.168.91.23';

（5）打開壓縮，把compression設(shè)置為非0

admin@127.0.0.1 [main]>UPDATE mysql_servers SET compression=2 WHERE hostname='192.168.91.23';      

              

（6）優(yōu)雅的關(guān)閉一個(gè)服務(wù)：

把狀態(tài)改變成 status = offline_soft. 

admin@127.0.0.1 [main]>UPDATE mysql_servers SET status='OFFLINE_SOFT' WHERE hostname='192.168.91.23';

（7）刪除一個(gè)服務(wù)delete即可

在proxysql連接msyql server

[root@Darren1 ~]# mysql -u admin -padmin -h 127.0.0.1 -P6032

#配置DB主機(jī):

admin@127.0.0.1 [main]>insert into mysql_servers(hostgroup_id,hostname) values(0,'192.168.91.23');

admin@127.0.0.1 [main]>insert into mysql_servers(hostgroup_id,hostname) values(1,'192.168.91.22');

admin@127.0.0.1 [(none)]>select * from mysql_servers;

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

| hostgroup_id | hostname      | port | status | weight | compression | max_connections | max_replication_lag | use_ssl | max_latency_ms | comment |

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

| 0            | 192.168.91.23 | 3306 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |

| 1            | 192.168.91.22 | 3306 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

#在mysql主庫(kù)上創(chuàng)建監(jiān)控用戶：

root@localhost [(none)]>create user monitor@'192.168.91.%' identified by 'monitor';

root@localhost [(none)]>grant all on *.* to monitor@'192.168.91.%';

#在proxysql中配置監(jiān)控用戶和密碼：

admin@127.0.0.1 [(none)]>UPDATE global_variables SET variable_value='monitor' WHERE variable_name='mysql-monitor_username';

admin@127.0.0.1 [(none)]>UPDATE global_variables SET variable_value='monitor' WHERE variable_name='mysql-monitor_password';

#配置監(jiān)控時(shí)間間隔：如mysql-monitor_connect_interval、  mysql-monitor_ping_interval、  mysql-monitor_read_only_interval：

admin@127.0.0.1 [(none)]>UPDATE global_variables SET variable_value='2000' WHERE variable_name IN ('mysql-monitor_connect_interval','mysql-monitor_ping_interval','mysql-monitor_read_only_interval');

admin@127.0.0.1 [(none)]>select * from global_variables where variable_name like 'mysql-monitor_%';

+-----------------------------------------------------+----------------+

| variable_name                                       | variable_value |

+-----------------------------------------------------+----------------+

| mysql-monitor_enabled                               | true           |

| mysql-monitor_connect_timeout                       | 600            |

| mysql-monitor_ping_max_failures                     | 3              |

| mysql-monitor_ping_timeout                          | 1000           |

| mysql-monitor_replication_lag_interval              | 10000          |

| mysql-monitor_replication_lag_timeout               | 1000           |

| mysql-monitor_groupreplication_healthcheck_interval | 5000           |

| mysql-monitor_groupreplication_healthcheck_timeout  | 800            |

| mysql-monitor_username                              | monitor        |

| mysql-monitor_password                              | monitor        |

| mysql-monitor_query_interval                        | 60000          |

| mysql-monitor_query_timeout                         | 100            |

| mysql-monitor_slave_lag_when_null                   | 60             |

| mysql-monitor_wait_timeout                          | true           |

| mysql-monitor_writer_is_also_reader                 | true           |

| mysql-monitor_history                               | 600000         |

| mysql-monitor_connect_interval                      | 2000           |

| mysql-monitor_ping_interval                         | 2000           |

| mysql-monitor_read_only_interval                    | 2000           |

| mysql-monitor_read_only_timeout                     | 500            |

+-----------------------------------------------------+----------------+

admin@127.0.0.1 [(none)]>LOAD MYSQL VARIABLES TO RUNTIME;

admin@127.0.0.1 [(none)]>SAVE MYSQL VARIABLES TO DISK;

admin@127.0.0.1 [(none)]>show tables from monitor;

+------------------------------------+

| tables                             |

+------------------------------------+

| mysql_server_connect               |

| mysql_server_connect_log           |

| mysql_server_group_replication_log |

| mysql_server_ping                  |

| mysql_server_ping_log              |

| mysql_server_read_only_log         |

| mysql_server_replication_lag_log   |

+------------------------------------+

admin@127.0.0.1 [(none)]>SELECT * FROM monitor.mysql_server_connect_log ORDER BY time_start_us DESC LIMIT 10;

+---------------+------+------------------+-------------------------+---------------+

| hostname      | port | time_start_us    | connect_success_time_us | connect_error |

+---------------+------+------------------+-------------------------+---------------+

| 192.168.91.23 | 3306 | 1495445436268761 | 1894                    | NULL          |

| 192.168.91.22 | 3306 | 1495445436267947 | 3301                    | NULL          |

| 192.168.91.23 | 3306 | 1495445434267631 | 601                     | NULL          |

| 192.168.91.22 | 3306 | 1495445434266684 | 1898                    | NULL          |

| 192.168.91.23 | 3306 | 1495445432267286 | 527                     | NULL          |

| 192.168.91.22 | 3306 | 1495445432266457 | 1646                    | NULL          |

+---------------+------+------------------+-------------------------+---------------+

admin@127.0.0.1 [(none)]>SELECT * FROM monitor.mysql_server_ping_log ORDER BY time_start_us DESC LIMIT 10;

+---------------+------+------------------+----------------------+------------+

| hostname      | port | time_start_us    | ping_success_time_us | ping_error |

+---------------+------+------------------+----------------------+------------+

| 192.168.91.23 | 3306 | 1495445542307107 | 147                  | NULL       |

| 192.168.91.22 | 3306 | 1495445542306299 | 504                  | NULL       |

| 192.168.91.23 | 3306 | 1495445540306625 | 173                  | NULL       |

| 192.168.91.22 | 3306 | 1495445540305786 | 596                  | NULL       |

| 192.168.91.23 | 3306 | 1495445538305981 | 165                  | NULL       |

+---------------+------+------------------+----------------------+------------+

admin@127.0.0.1 [(none)]>LOAD MYSQL SERVERS TO RUNTIME;


MySQL replication hostgroups

對(duì)應(yīng)表 mysql_replication_hostgroups

表的作用：配置寫組（比如1）和讀組（比如2），ProxySQL會(huì)根據(jù)read_only參數(shù)把主機(jī)分配到對(duì)應(yīng)的讀組合寫組中

如read_only=0 ,分配到hostgroup 1

如read_only=1 , 分配到 hostgroup 2

admin@127.0.0.1 [(none)]>INSERT INTO mysql_replication_hostgroups(writer_hostgroup,reader_hostgroup) VALUES (1,2);

admin@127.0.0.1 [(none)]>select * from  mysql_replication_hostgroups;

+------------------+------------------+---------+

| writer_hostgroup | reader_hostgroup | comment |

+------------------+------------------+---------+

| 1                | 2                | NULL    |

+------------------+------------------+---------+

#現(xiàn)在192.168.91.22是read_only=0,所以hostgroup_id=1：

admin@127.0.0.1 [(none)]>SELECT * FROM mysql_servers;

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

| hostgroup_id | hostname      | port | status | weight | compression | max_connections | max_replication_lag | use_ssl | max_latency_ms | comment |

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

| 0            | 192.168.91.23 | 3306 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |

| 1            | 192.168.91.22 | 3306 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

admin@127.0.0.1 [(none)]>load mysql servers to runtime;

root@localhost [(none)]>set global read_only=1;

admin@127.0.0.1 [(none)]>SELECT * FROM monitor.mysql_server_read_only_log ORDER BY time_start_us DESC LIMIT 10;

+---------------+------+------------------+-----------------+-----------+-------+

| hostname      | port | time_start_us    | success_time_us | read_only | error |

+---------------+------+------------------+-----------------+-----------+-------+

| 192.168.91.22 | 3306 | 1495449784913364 | 10240           | 1         | NULL  |

| 192.168.91.22 | 3306 | 1495449782913147 | 3161            | 1         | NULL  |

| 192.168.91.22 | 3306 | 1495449780912973 | 5600            | 1         | NULL  |

| 192.168.91.22 | 3306 | 1495449778913003 | 8661            | 1         | NULL  |  |

+---------------+------+------------------+-----------------+-----------+-------+

#現(xiàn)在192.168.91.22是read_only=1,所以被分配到hostgroup_id=2：

admin@127.0.0.1 [(none)]>select * from mysql_servers;

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

| hostgroup_id | hostname      | port | status | weight | compression | max_connections | max_replication_lag | use_ssl | max_latency_ms | comment |

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

| 0            | 192.168.91.23 | 3306 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |

| 2            | 192.168.91.22 | 3306 | ONLINE | 1      | 0           | 1000            | 0                   | 0       | 0              |         |

+--------------+---------------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+

admin@127.0.0.1 [(none)]>SAVE MYSQL SERVERS TO DISK;

admin@127.0.0.1 [(none)]>save mysql variables to disk;

mysql_users

admin>INSERT INTO mysql_users(username,password,default_hostgroup) VALUES ('user1','147258',0);

admin>INSERT INTO mysql_users(username,password,default_hostgroup) VALUES ('user2','147258',1);

admin>INSERT INTO mysql_users(username,password,default_hostgroup) VALUES ('user3','147258',2);

admin@127.0.0.1 [(none)]>load mysql users to runtime;

admin@127.0.0.1 [(none)]>save mysql users to disk;

#需要在數(shù)據(jù)庫(kù)層面創(chuàng)建對(duì)應(yīng)的用戶名和密碼才能登陸操作數(shù)據(jù)庫(kù)：

root@localhost [(none)]>create user user1@'%' identified by '147258';

root@localhost [(none)]>grant all on *.* to user1@'%';

mysql -u user1 -p147258 -h 127.0.0.1 -P6033

user1@127.0.0.1 [testdb]>select @@hostname;

+------------+

| @@hostname |

+------------+

| Darren1    |

+------------+

#可以用sysbench做測(cè)試：

[root@Darren1 ~]# sysbench --time=20 --threads=4  --mysql-host=localhost --mysql-user=user1 --mysql-password='147258' --mysql-port=6033  --mysql-db=sbtest --tables=4 --table_size=1000  /home/mysql/sysbench-1.0.3/src/lua/oltp_read_write.lua prepare

[root@Darren1 ~]# sysbench --time=20 --threads=4  --mysql-host=localhost --mysql-user=user1 --mysql-password='147258' --mysql-port=6033  --mysql-db=sbtest --tables=4 --table_size=1000  /home/mysql/sysbench-1.0.3/src/lua/oltp_read_write.lua run

ProxySQL Statistics

ProxySQL可以通過stats庫(kù)收集大量統(tǒng)計(jì)信息

admin@127.0.0.1 [(none)]>show tables from stats;

+-----------------------------------+

| tables                            |

+-----------------------------------+

| global_variables                  |

| stats_mysql_commands_counters     |

| stats_mysql_connection_pool       |

| stats_mysql_connection_pool_reset |

| stats_mysql_global                |

| stats_mysql_processlist           |

| stats_mysql_query_digest          |

| stats_mysql_query_digest_reset    |

| stats_mysql_query_rules           |

| stats_mysql_users                 |

+-----------------------------------+

#stats.stats_mysql_connection_pool表：

admin@127.0.0.1 [(none)]>SELECT * FROM stats.stats_mysql_connection_pool;

+-----------+---------------+----------+--------+----------+----------+--------+---------+---------+-----------------+-----------------+------------+

| hostgroup | srv_host      | srv_port | status | ConnUsed | ConnFree | ConnOK | ConnERR | Queries | Bytes_data_sent | Bytes_data_recv | Latency_us |

+-----------+---------------+----------+--------+----------+----------+--------+---------+---------+-----------------+-----------------+------------+

| 0         | 192.168.91.23 | 3306     | ONLINE | 0        | 0        | 0      | 22      | 0       | 0               | 0               | 168        |

| 2         | 192.168.91.22 | 3306     | ONLINE | 0        | 0        | 0      | 0       | 0       | 0               | 0               | 926        |

| 1         | 192.168.91.22 | 3306     | ONLINE | 0        | 0        | 0      | 176     | 0       | 0               | 0               | 926        |

+-----------+---------------+----------+--------+----------+----------+--------+---------+---------+-----------------+-----------------+------------+

#stats_mysql_commands_counters表：

作用：

returns detailed information about the type of statements executed, and the distribution of execution time!

#統(tǒng)計(jì)一些sql的操作：

admin@127.0.0.1 [(none)]>select * from stats_mysql_commands_counters;

+-------------------+---------------+-----------+-----------+-----------+---------+---------+----------+----------+-----------+-----------+--------+--------+---------+----------+

| Command           | Total_Time_us | Total_cnt | cnt_100us | cnt_500us | cnt_1ms | cnt_5ms | cnt_10ms | cnt_50ms | cnt_100ms | cnt_500ms | cnt_1s | cnt_5s | cnt_10s | cnt_INFs |

+-------------------+---------------+-----------+-----------+-----------+---------+---------+----------+----------+-----------+-----------+--------+--------+---------+----------+

| ALTER_TABLE       | 0             | 0         | 0         | 0         | 0       | 0       | 0        | 0        | 0         | 0         | 0      | 0      | 0       | 0        |

| ALTER_VIEW        | 0             | 0         | 0         | 0         | 0       | 0       | 0        | 0        | 0         | 0         | 0      | 0      | 0       | 0        |

| ANALYZE_TABLE     | 0             | 0         | 0         | 0         | 0       | 0       | 0        | 0        | 0         | 0         | 0      | 0      | 0       | 0        |

| BEGIN             | 0             | 0         | 0         | 0         | 0       | 0       | 0        | 0        | 0         | 0         | 0      | 0      | 0       | 0        |

| CALL              | 0             | 0         | 0         | 0         | 0       | 0       | 0        | 0        | 0         | 0         | 0      | 0      | 0       | 0        |

| CHANGE_MASTER     | 0             | 0         | 0         | 0         | 0       | 0       | 0        | 0        | 0         | 0         | 0      | 0      | 0       | 0        |

| COMMIT            | 0             | 0         | 0         | 0         | 0       | 0       | 0        | 0        | 0         | 0   

...........

#stats_mysql_query_digest查看執(zhí)行過的查詢操作

admin@127.0.0.1 [(none)]>SELECT * FROM stats_mysql_query_digest ORDER BY sum_time DESC;

+-----------+--------------------+----------+--------------------+-----------------------------------+------------+------------+------------+----------+----------+----------+

| hostgroup | schemaname         | username | digest             | digest_text                       | count_star | first_seen | last_seen  | sum_time | min_time | max_time |

+-----------+--------------------+----------+--------------------+-----------------------------------+------------+------------+------------+----------+----------+----------+

| 0         | information_schema | user1    | 0x1E092DAEFFBBF262 | select ?                          | 1          | 1495462584 | 1495462584 | 111316   | 111316   | 111316   |

| 0         | testdb             | user1    | 0x3765930C7143F468 | select * from t1                  | 1          | 1495462644 | 1495462644 | 101438   | 101438   | 101438   |

| 0         | information_schema | user1    | 0x99531AEFF718C501 | show tables                       | 2          | 1495462594 | 1495

.......

#查詢表stats_mysql_query_digest_reset的作用就是把表stats_mysql_query_digest清空

admin@127.0.0.1 [(none)]>select * from stats_mysql_query_digest_reset;

admin@127.0.0.1 [(none)]>select * from stats_mysql_query_digest;

Empty set (0.00 sec)

路由規(guī)則（MySQL Query Rules）

表: mysql_query_rules

作用：控制讀寫分離

表中：apply=1 means that no further rules are checked if there is a match

#創(chuàng)建一個(gè)rule:表示SELECT * FROM t1$開頭的SQL語句會(huì)通過hostgroup為0的主機(jī)執(zhí)行：

admin@127.0.0.1 [(none)]>INSERT INTO mysql_query_rules (rule_id,active,username,match_digest,destination_hostgroup,apply) VALUES (10,1,'user1','^SELECT * FROM t1$',0,1);

admin@127.0.0.1 [(none)]>LOAD MYSQL QUERY RULES TO RUNTIME;

[root@Darren1 lua]# mysql -u user1 -p147258 -h 127.0.0.1 -P6033

user1@127.0.0.1 [testdb]>select * from t1;

#可以看到前面的select語句分配到hostgroup為0的服務(wù)器上：

admin@127.0.0.1 [(none)]>SELECT hostgroup hg, sum_time, count_star, digest_text FROM stats_mysql_query_digest ORDER BY sum_time DESC;

+----+----------+------------+------------------+

| hg | sum_time | count_star | digest_text      |

+----+----------+------------+------------------+

| 0  | 716      | 1          | select * from t1 |

+----+----------+------------+------------------+


分享名稱：ProxySQL
文章轉(zhuǎn)載：http://weahome.cn/article/jhspds.html

其他資訊

在線咨詢

微信咨詢

電話咨詢

028-86922220（工作日）

18980820575（7×24）

提交需求

返回頂部