MySQL Utilities工具教程
MySQL Utilities 提供一组命令行工具用于维护和管理 MySQL 服务器，包括：
管理工具 (克隆、复制、比较、差异、导出、导入)
复制工具 (安装、配置)
一般工具 (磁盘使用情况、冗余索引、搜索元数据)
MySQL Utilities是一系列的命令行工具以及Python库更容易完成管理的任务。库是用Python语言写的，这就意味着不需要安装其他任何工具和库。当前是基于Python2.6版本设计的，不支持Python3.1版本。
二、下载安装
https://downloads.mysql.com/archives/utilities/
2.2 安装mysql utilities
shell> tar -xvzf mysql-utilities-1.6.5.tar.gz
shell> cd mysql-utilities-1.6.5
shell> python ./setup.py build
shell> python ./setup.py install
三、工具使用
#下面为自测使用的参数，详细参数请查看--help
Binary Log Operations(二进制日志操作)
mysqlbinlogmove 二进制日志移动
mysqlbinlogpurge 二进制日志清理
mysqlbinlogrotate 二进制日志老化工具
Database Operations(数据库操作)
mysqldbexport 数据导出
mysqldbimport 数据导入
mysqldbcopy 库级别数据库复制
mysqldiff 数据库对象级别比较工具
mysqldbcompare 数据库库级别比较工具
General Operations(通用用的操作)
mysqldiskusage 磁盘空间查看
mysqlfrm 恢复故障表.frm文件
mysqluserclone 用户克隆工具
mysqluc Utilities帮助工具
mysqlindexcheck 索引检测工具
mysqlmetagrep 元数据过滤器
mysqlprocgrep 进程搜索及清理工具
High Availability Operations(高可用)
mysqlreplicate 主从复制工具
mysqlrpladmin 主从复制管理工具
mysqlrplcheck 主从复制检测工具
mysqlrplms 主从多元复制工具
mysqlrplshow 主从复制拓扑图工具
mysqlrplsync 主从复制同步工具
mysqlfailover 主从failover工具
mysqlslavetrx 从库事务跳过工具
Server Operations(服务器操作)
mysqlserverinfo 服务器信息查看工具
mysqlserverclone 服务器克隆工具
Specialized Operations(特殊操作)
mysqlauditadmin 审计管理工具
mysqlauditgrep 审计日志过滤工具
本次只分享自己在实际使用中用到的工具！
3.1 mysqldbcopy 数据库复制工具使用
mysqldbcopy --source=root:mysql@127.0.0.1:3306 --destination=root:mysql@127.0.0.1:3306 tt:t1
#--source 源端数据库
#--destination 目标端数据库
#root:mysql@127.0.0.1:3306 数据库用户名：密码@ip地址：端口
#tt:t1 tt源端数据库名字：目标端数据库名字（目标端数据不用提前创建，执行命令时自动创建）
3.2 mysqlrplshow查看主从结构
my.cnf参数需要配置如下参数：
report_host=192.168.253.146
report_port=3306
[root@localhost ~]# mysqlrplshow --master=failover:pass@'192.168.253.146':3306 --discover-slaves-login=failover:pass --verbose
WARNING: Using a password on the command line interface can be insecure.
# master on 192.168.253.146: ... connected.
# Finding slaves for master: 192.168.253.146:3306
# Replication Topology Graph
192.168.253.146:3306 (MASTER)
|
+--- 192.168.253.130:3306 [IO: Yes, SQL: Yes] - (SLAVE)
#--master=failover:pass@'192.168.253.146':3306 主库用户名密码
#--discover-slaves-login=failover:pass 为从库复制账号和密码
3.3 非守护进程方式启动mysqlfailover查看主从
[root@localhost ~]# mysqlfailover --master=failover:pass@'192.168.253.146':3306 --discover-slaves-login=failover:pass
WARNING: Using a password on the command line interface can be insecure.
# Discovering slaves for master at 192.168.253.146:3306
# Discovering slave at 192.168.253.130:3306
# Found slave: 192.168.253.130:3306
# Checking privileges.
MySQL Replication Failover Utility
Failover Mode = auto Next Interval = Mon May 31 14:26:34 2021
Master Information
------------------
Binary Log File Position Binlog_Do_DB Binlog_Ignore_DB
mysql-binlog.000003 194
GTID Executed Set
ea4a306b-c1d3-11eb-bf34-000c29f06c14:1-16
Replication Health Status
+------------------+-------+---------+--------+------------+---------+
| host | port | role | state | gtid_mode | health |
+------------------+-------+---------+--------+------------+---------+
| 192.168.253.146 | 3306 | MASTER | UP | ON | OK |
| 192.168.253.130 | 3306 | SLAVE | UP | ON | OK |
+------------------+-------+---------+--------+------------+---------+
Q-quit R-refresh H-health G-GTID Lists U-UUIDs
# Discovering slaves for master at 192.168.253.146:3306
MySQL Replication Failover Utility
Failover Mode = auto Next Interval = Mon May 31 14:28:58 2021
3.4 以守护进程方式启动mysalfailover
[root@localhost ~]# mysqlfailover --master=failover:pass@'192.168.253.146':3306 --discover-slaves-login=failover:pass --log=/tmp/failover.log --daemon=start
WARNING: Using a password on the command line interface can be insecure.
NOTE: Log file '/tmp/failover.log' does not exist. Will be created.
Starting failover daemon...
日志查看：
[root@node233 ~]# tail -fn 50 /tmp/failover.log
2016-10-17 17:47:54 PM INFO MySQL Utilities mysqlfailover version 1.6.4.
2016-10-17 17:47:54 PM INFO Server '192.168.253.131:3306' is using MySQL version 5.6.30-log.
2016-10-17 17:47:54 PM INFO Discovering slaves for master at 192.168.253.131:3306
2016-10-17 17:47:54 PM INFO Discovering slave at 192.168.253.146:3306
2016-10-17 17:47:54 PM INFO Found slave: 192.168.253.146:3306
2016-10-17 17:47:54 PM INFO Server '192.168.253.146:3306' is using MySQL version 5.6.30-log.
2016-10-17 17:47:54 PM INFO Discovering slave at 192.168.253.130:3306
2016-10-17 17:47:54 PM INFO Found slave: 192.168.253.130:3306
2016-10-17 17:47:54 PM INFO Server '192.168.253.130:3306' is using MySQL version 5.6.30-log.
2016-10-17 17:47:54 PM INFO Checking privileges.
2016-10-17 17:47:54 PM INFO Unregistering existing instances from slaves.
2016-10-17 17:47:54 PM INFO Registering instance on master