1分钟快速搭建MySQL主从数据库

作者:dbapower 原文:http://blog.51cto.com/suifu/1878443

简介

mysql-utilities工具集是一个集中了多种工具的合集,可以理解为是DBA的工具箱,本文介绍利用其中的mysqlreplicate工具来快速搭建MySQL主从环境。

HE1:192.168.1.248 slave

HE3:192.168.1.250 master

实战演练

Part1:安装mysql-utilities

[root@HE1 ~]# tar xvf mysql-utilities-1.5.4.tar.gz
[root@HE1 ~]# cd mysql-utilities-1.5.4
[root@HE1 mysql-utilities-1.5.4]# python setup.py build
[root@HE1 mysql-utilities-1.5.4]# python setup.py install

如何安装MySQL可参考

MySQL5.6生产库自动化安装部署

http://suifu.blog.51cto.com/9167728/1846671

1分钟完成MySQL5.7安装部署

http://suifu.blog.51cto.com/9167728/1855415

Part2:基本使用方式

[root@HE1 ~]# mysqlreplicate --helpMySQL Utilities mysqlreplicate version 1.5.4 
License type: GPLv2
Usage: mysqlreplicate --master=root@localhost:3306 --slave=root@localhost:3310 --rpl-user=rpl:passwd 
mysqlreplicate - establish replication with a master
Options:
  --version             show program's version number and exit
  --help                display a help message and exit
  --license             display program's license and exit
  --master=MASTER       connection information for master server in the form:                        <user>[:<password>]@<host>[:<port>][:<socket>] or                        <login-path>[:<port>][:<socket>] or <config-
                        path>[<[group]>].
  --slave=SLAVE         connection information for slave server in the form:                        <user>[:<password>]@<host>[:<port>][:<socket>] or                        <login-path>[:<port>][:<socket>] or <config-
                        path>[<[group]>].
  --rpl-user=RPL_USER   the user and password for the replication user
                        requirement, in the form: <user>[:<password>] or                        <login-path>. E.g. rpl:passwd
  -p, --pedantic        fail if storage engines differ among master and slave.
  --test-db=TEST_DB     database name to use in testing replication setup                        (optional)
  --master-log-file=MASTER_LOG_FILE
                        use this master log file to initiate the slave.
  --master-log-pos=MASTER_LOG_POS
                        use this position in the master log file to initiate
                        the slave.
  -b, --start-from-beginning
                        start replication from the first event recorded in the
                        binary logging of the master. Not valid with --master-
                        log-file or --master-log-pos.
  --ssl-ca=SSL_CA       The path to a file that contains a list of trusted SSL
                        CAs.
  --ssl-cert=SSL_CERT   The name of the SSL certificate file to use for
                        establishing a secure connection.
  --ssl-key=SSL_KEY     The name of the SSL key file to use for establishing a
                        secure connection.
  --ssl=SSL             Specifies if the server connection requires use of
                        SSL. If an encrypted connection cannot be established,
                        the connection attempt fails. By default 0 (SSL not
                        required).
  -v, --verbose         control how much information is displayed. e.g., -v =
                        verbose, -vv = more verbose, -vvv = debug
  -q, --quiet           turn off all messages for quiet execution.

Part3:主库准备

主库创建复制用户

[root@HE3 ~]# mysql -uroot -pEnter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 23329
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> grant replication client,replication slave on *.* to 'mysync'@'%' identified by 'MANAGER';Query OK, 0 rows affected, 1 warning (0.01 sec)mysql> flush privileges;Query OK, 0 rows affected (0.01 sec)

Part4:一键配置

从库进行配置主从执行如下命令

[root@HE1 ~]# mysqlreplicate --master=sys_admin:MANAGER@192.168.1.250:3306 --slave=sys_admin:MANAGER@192.168.1.248:3306 --rpl-user=mysync:MANAGER -b
WARNING: Using a password on the command line interface can be insecure.
# master on 192.168.1.250: ... connected.
# slave on 192.168.1.248: ... connected.
# Checking for binary logging on master...
# Setting up replication...# ...done.

检查

Part1:mysqlrplcheck检查

[root@HE1 ~]# mysqlrplcheck --master=sys_admin:MANAGER@192.168.1.250:3306 --slave=sys_admin:MANAGER@192.168.1.248:3306 -s
WARNING: Using a password on the command line interface can be insecure.
# master on 192.168.1.250: ... connected.
# slave on 192.168.1.248: ... connected.
Test Description                                                     Status
---------------------------------------------------------------------------
Checking for binary logging on master                                [pass]
Are there binlog exceptions?                                         [pass]
Replication user exists?                                             [pass]
Checking server_id values                                            [pass]
Checking server_uuid values                                          [pass]
Is slave connected to master?                                        [pass]
Check master information file                                        [pass]
Checking InnoDB compatibility                                        [pass]
Checking storage engines compatibility                               [pass]
Checking lower_case_table_names settings                             [pass]
Checking slave delay (seconds behind master)                         [pass]

#
# Slave status: 
#
                Slave_IO_State : Waiting for master to send event
                   Master_Host : 192.168.1.250
                   Master_User : mysync
                   Master_Port : 3306
                 Connect_Retry : 60
               Master_Log_File : mysql-bin.000003
           Read_Master_Log_Pos : 384741
                Relay_Log_File : HE1-relay-bin.000004
                 Relay_Log_Pos : 384954
         Relay_Master_Log_File : mysql-bin.000003
              Slave_IO_Running : Yes
             Slave_SQL_Running : Yes
               Replicate_Do_DB : 
           Replicate_Ignore_DB : 
            Replicate_Do_Table : 
        Replicate_Ignore_Table : 
       Replicate_Wild_Do_Table : 
   Replicate_Wild_Ignore_Table : 
                    Last_Errno : 0
                    Last_Error : 
                  Skip_Counter : 0
           Exec_Master_Log_Pos : 384741
               Relay_Log_Space : 1743112
               Until_Condition : None
                Until_Log_File : 
                 Until_Log_Pos : 0
            Master_SSL_Allowed : No
            Master_SSL_CA_File : 
            Master_SSL_CA_Path : 
               Master_SSL_Cert : 
             Master_SSL_Cipher : 
                Master_SSL_Key : 
         Seconds_Behind_Master : 0
 Master_SSL_Verify_Server_Cert : No
                 Last_IO_Errno : 0
                 Last_IO_Error : 
                Last_SQL_Errno : 0
                Last_SQL_Error : 
   Replicate_Ignore_Server_Ids : 
              Master_Server_Id : 1250
                   Master_UUID : 1b1daad8-b501-11e6-aa21-000c29c6361d
              Master_Info_File : /data/mysql/master.info
                     SQL_Delay : 0
           SQL_Remaining_Delay : None
       Slave_SQL_Running_State : Slave has read all relay log; waiting for more updates
            Master_Retry_Count : 86400
                   Master_Bind : 
       Last_IO_Error_Timestamp : 
      Last_SQL_Error_Timestamp : 
                Master_SSL_Crl : 
            Master_SSL_Crlpath : 
            Retrieved_Gtid_Set : 
             Executed_Gtid_Set : 
                 Auto_Position : 0
          Replicate_Rewrite_DB : 
                  Channel_Name : 
            Master_TLS_Version : 
# ...done.

其他常用工具

Part1:mysqldiskusage检查数据库空间大小

[root@HE1 ~]# mysqldiskusage --server=sys_admin:MANAGER@localhost
WARNING: Using a password on the command line interface can be insecure.
# Source on localhost: ... connected.
# Database totals:
+---------------------+--------------+
| db_name             |       total  |
+---------------------+--------------+
| maxscale_schema     | 14,906       |
| mysql               | 14,250,013   |
| performance_schema  | 818,071      |
| sys                 | 500,802      |
| wms                 | 925,929,868  |
+---------------------+--------------+
Total database disk usage = 941,513,660 bytes or 897.90 MB
#...done.

Part2:mysqlindexcheck检查冗余索引

[root@HE1 ~]# mysqlindexcheck --server=sys_admin:MANAGER@localhost wms
WARNING: Using a password on the command line interface can be insecure.
# Source on localhost: ... connected.
# The following index is a duplicate or redundant for table wms.auth_user:
#
CREATE UNIQUE INDEX `index_user_name` ON `wms`.`auth_user` (`user_name`) USING BTREE
#     may be redundant or duplicate of:
CREATE INDEX `user_name` ON `wms`.`auth_user` (`user_name`, `state`) USING BTREE
# The following index is a duplicate or redundant for table wms.basic_storeage_sapce:
#
CREATE INDEX `idx_store_district_space_no` ON `wms`.`basic_storeage_sapce` (`store_id`, `district_id`, `store_space_no`) USING BTREE
#     may be redundant or duplicate of:
CREATE UNIQUE INDEX `idx_store_district_space_no_un` ON `wms`.`basic_storeage_sapce` (`store_id`, `district_id`, `store_space_no`) USING BTREE

总结

可以看到利用mysql-utilities工具集中的mysqlreplicate来配置MySQL主从非常简单,mysqlreplicate也提供了各类参数,本文中的-b是指使复制从主二进制日志中的第一个事件开始。mysqlrplcheck 中的-s是指输出show slave status\G的内容。

各位老铁们,大家喜欢什么类型的文章可以多多留言,小编会尽量搜集,谢谢!!!

END

原文发布于微信公众号 - Java研发军团(ityuancheng)

原文发表时间:2018-10-09

本文参与腾讯云自媒体分享计划,欢迎正在阅读的你也加入,一起分享。

发表于

我来说两句

0 条评论
登录 后参与评论

扫码关注云+社区

领取腾讯云代金券