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不知道大家之前对类似通过OneProxy实现MySQL分库分表的文章有无了解，今天我在这里给大家再简单的讲讲。感兴趣的话就一起来看看正文部分吧，相信看完通过OneProxy实现MySQL分库分表你一定会有所收获的。
定制网站可以根据自己的需求进行定制，网站制作、成都网站制作构思过程中功能建设理应排到主要部位公司网站制作、成都网站制作的运用实际效果公司网站制作网站建立与制做的实际意义
Part1:写在最前
随着网站的壮大，MySQL数据库架构一般会经历一个过程：
当我们数据量比较小的时候，一台单实例数据库足矣。等我们数据量增大的时候，我们会采用一主多从的数据库架构来降低我们的读写io。当我们某张业务表达到几百万上千万甚至上亿时，就应该去进行分表处理。本文演示OneProxy对数据库实现分表处理，对前端应用是透明的。
Part2:环境简介
HE1:192.168.1.248 Master1
HE3:192.168.1.250 Master2
HE4:192.168.1.251 Oneproxy
Part1:安装Oneproxy
Oneproxy的安装不是本文讲述的重点，需要的可移步至
OneProxy实现MySQL读写分离与负载均衡
http://suifu.blog.51cto.com/9167728/1884673
Part2:proxy.cnf
proxy.cnf文件是oneproxy的主要参数配置文件，新版的oneproxy对整个目录进行了重新的划分，配置文件都放在了conf目录里
[root@HE4 oneproxy]# cat conf/proxy.conf [oneproxy] keepalive = 1 event-threads = 4 log-file = log/oneproxy.log pid-file = log/oneproxy.pid lck-file = log/oneproxy.lck mysql-version = 5.7.16 proxy-address = :3307 proxy-master-addresses.1 = 192.168.1.248:3306@group1 proxy-master-addresses.2 = 192.168.1.250:3306@group2 proxy-user-list = sys_admin/1C6D087BA5D2607A27DECB2F2AFE247E911E877A@test proxy-part-tables.1 = /root/oneproxy/conf/part.txt #proxy-part-tables.2 = /root/oneproxy/conf/part2.txt proxy-charset = utf8_bin proxy-group-policy.1 = group1:master-only proxy-group-policy.2 = group2:master-only proxy-secure-client = 192.168.1.248 proxy-sequence.1 = default proxy-httpserver = :8080 proxy-httptitle = OneProxy Monitor
Part3:part.txt
part.txt文件是分区策略配置文件，在本博文中，采取hash分区来进行简单演示
[root@HE4 oneproxy]# cat conf/part.txt
[
{
"table" : "helei",
"pkey" : "id",
"type" : "int",
"method" : "hash",
"partitions" :
[
{ "suffix" : "_0", "group": "group1" },
{ "suffix" : "_1", "group": "group2" },
{ "suffix" : "_2", "group": "group1" },
{ "suffix" : "_3", "group": "group2"}
]
}
]Part1:启动OneProxy
[root@HE4 oneproxy]# ./oneproxy.service start Starting OneProxy ... [ OK ]
Part2:监控页面
我这里是两台Master
Part3:创建相关表
登录oneproxy管理库创建表
[root@HE1 ~]# mysql -usys_admin -pMANAGER -h292.168.1.251 -P3307 test 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 103 Server version: 5.7.16 OneProxy-Community-5.8.5 (OneXSoft) 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> create table helei( -> id int(10) unsigned NOT NULL AUTO_INCREMENT, -> c1 int(10) NOT NULL DEFAULT '0', -> c2 int(10) unsigned DEFAULT NULL, -> c5 int(10) unsigned NOT NULL DEFAULT '0', -> c3 timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, -> c4 varchar(200) NOT NULL DEFAULT '', -> PRIMARY KEY(id), -> KEY idx_c1(c1), -> KEY idx_c2(c2) -> )ENGINE=InnoDB ; Query OK, 0 rows affected (0.27 sec) mysql> \q
Part4:插入数据
[root@HE1 ~]# mysql -usys_admin -pMANAGER -h292.168.1.251 -P3307 test -e"insert into helei(id,c1,c2,c5,c4) values(1,1,1,1,'1')" mysql: [Warning] Using a password on the command line interface can be insecure. [root@HE1 ~]# mysql -usys_admin -pMANAGER -h292.168.1.251 -P3307 test -e"insert into helei(id,c1,c2,c5,c4) values(2,2,2,2,'2')" mysql: [Warning] Using a password on the command line interface can be insecure. [root@HE1 ~]# mysql -usys_admin -pMANAGER -h292.168.1.251 -P3307 test -e"insert into helei(id,c1,c2,c5,c4) values(3,3,3,3,'3')" mysql: [Warning] Using a password on the command line interface can be insecure. [root@HE1 ~]# mysql -usys_admin -pMANAGER -h292.168.1.251 -P3307 test -e"insert into helei(id,c1,c2,c5,c4) values(4,4,4,4,'4')" mysql: [Warning] Using a password on the command line interface can be insecure.
Part1:校验oneproxy表内容
这里可以看到虚拟表helei中已经具有刚刚插入的内容；
[root@HE1 ~]# mysql -usys_admin -pMANAGER -h292.168.1.251 -P3307 test -e"select * from helei"; mysql: [Warning] Using a password on the command line interface can be insecure. +----+----+------+----+---------------------+----+ | id | c1 | c2 | c5 | c3 | c4 | +----+----+------+----+---------------------+----+ | 4 | 4 | 4 | 4 | 2016-12-23 00:07:21 | 4 | | 1 | 1 | 1 | 1 | 2016-12-23 16:07:04 | 1 | | 2 | 2 | 2 | 2 | 2016-12-23 00:07:10 | 2 | | 3 | 3 | 3 | 3 | 2016-12-23 16:07:16 | 3 | +----+----+------+----+---------------------+----+
Part2:校验Master1中的内容
[root@HE1 ~]# mysql -uroot -pMANAGER test 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 158 Server version: 5.7.16-log MySQL Community Server (GPL) 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 tables; +----------------+ | Tables_in_test | +----------------+ | checksums | | helei_0 | | helei_2 | | sbtest | +----------------+ 4 rows in set (0.00 sec) mysql> select * from helei_0; +----+----+------+----+---------------------+----+ | id | c1 | c2 | c5 | c3 | c4 | +----+----+------+----+---------------------+----+ | 4 | 4 | 4 | 4 | 2016-12-23 00:07:21 | 4 | +----+----+------+----+---------------------+----+ 1 row in set (0.00 sec) mysql> select * from helei_2; +----+----+------+----+---------------------+----+ | id | c1 | c2 | c5 | c3 | c4 | +----+----+------+----+---------------------+----+ | 2 | 2 | 2 | 2 | 2016-12-23 00:07:10 | 2 | +----+----+------+----+---------------------+----+ 1 row in set (0.00 sec)
Part3:校验Master2中的内容
[root@HE3 ~]# mysql -uroot -pMANAGER test Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2997 Server version: 5.7.16-log MySQL Community Server (GPL) Copyright (c) 2000, 2013, 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 tables; +----------------+ | Tables_in_test | +----------------+ | checksums | | helei_1 | | helei_3 | +----------------+ 3 rows in set (0.00 sec) mysql> select * from helei_1; +----+----+------+----+---------------------+----+ | id | c1 | c2 | c5 | c3 | c4 | +----+----+------+----+---------------------+----+ | 1 | 1 | 1 | 1 | 2016-12-23 16:07:04 | 1 | +----+----+------+----+---------------------+----+ 1 row in set (0.00 sec) mysql> select * from helei_3; +----+----+------+----+---------------------+----+ | id | c1 | c2 | c5 | c3 | c4 | +----+----+------+----+---------------------+----+ | 3 | 3 | 3 | 3 | 2016-12-23 16:07:16 | 3 | +----+----+------+----+---------------------+----+ 1 row in set (0.00 sec)
Warning:警告1
不支持预编译语句 PreparedStatement,不支持Bind、Execute调用接口。
Warning:警告2
不支持使用use命令来切换后端数据库，use命令可执行，但其含义是切换到不同的MySQL主备集群，OneProxy在支持分库分表功能后，就将一个主备集群视为一个数据库了，链接Oneproxy时如果指定了数据库名，则需替换成Server Group的名字
Warning:警告3
禁止使用set命令，任何set命令都会直接返回成功，而不做任何处理。
Warning:警告4
默认禁止CALL、PREPARE、EXECUTE、DEALLOCATE命令，不支持存储过程和函数。
Warning:警告5
OneProxy支持master进行故障转移切换，但建议采用流行的高可用方案MHA实现。故障切换后，OneProxy可以自动识别哪台机器是master。另外，架构必须是一主带N从，不能是双主带N从。
通过OneProxy实现MySQL分库分表看完这篇文章，大家觉得怎么样？如果想要了解更多相关，可以继续关注我们的行业资讯板块。