如何快速使用mysqlreplicate搭建MySQL主从
发布时间：2022-03-08 13:17:39 所属栏目：MySql教程 来源：互联网
导读：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 Part1:安装mysql-utilities [root@HE1 ~]# tar xvf
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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 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 Part2:基本使用方式 [root@HE1 ~]# mysqlreplicate --help MySQL 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 -p Enter 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。由于笔者的水平有限，编写时间也很仓促，文中难免会出现一些错误或者不准确的地方，不妥之处恳请读者批评指正。 （编辑：云计算网_泰州站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
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