1分钟快速搭建wwwhj8828com18088049999MySQL主从数据库

时间:2022-06-11
本文章向大家介绍1分钟快速搭建wwwhj8828com18088049999MySQL主从数据库,主要内容包括其使用实例、应用技巧、基本知识点总结和需要注意事项,具有一定的参考价值,需要的朋友可以参考一下。

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 statusG的内容。