【DB宝43】MySQL误操作闪回恢复利器之my2sql
原创【DB宝43】MySQL误操作闪回恢复利器之my2sql
原创
AiDBA宝典
修改于 2021-03-15 10:12:54
修改于 2021-03-15 10:12:54
文章被收录于专栏：小麦苗的DB宝专栏
About Me
toc
一、my2sql简介
可以用于MySQL误操作闪回的工具包括my2sql、binlog2sql和MyFlash等工具，其中，个人感觉my2sql最好用。
my2sql是使用go语言开发的MySQL binlog解析工具，通过解析MySQL binlog ，可以生成原始SQL、回滚SQL、去除主键的INSERT SQL等，也可以生成DML统计信息。类似工具有binlog2sql、MyFlash、my2fback等，本工具基于my2fback、binlog_rollback工具二次开发而来。
my2sql的GitHub地址：https://github.com/liuhr/my2sql
优点：
- 功能丰富，不仅支持回滚操作，还有其他实用功能。
- 基于golang实现，速度快，全量解析1.1Gbinlog只需要1分30秒左右，当前其他类似开源工具一般要几十分钟。
二、my2sql用途
- 数据快速回滚(闪回)
- 主从切换后新master丢数据的修复
- 从binlog生成标准SQL，带来的衍生功能
- 生成DML统计信息，可以找到哪些表更新的比较频繁
- IO高TPS高， 查出哪些表在频繁更新
- 找出某个时间点数据库是否有大事务或者长事务
- 主从延迟，分析主库执行的SQL语句
- 除了支持常规数据类型，对大部分工具不支持的数据类型做了支持，比如json、blob、text、emoji等数据类型sql生成
三、产品性能对比
binlog2sql当前是业界使用最广泛的MySQL回滚工具，下面对my2sql和binlog2sql做个性能对比。
my2sql | binlog2sql | |
|---|---|---|
1.1G binlog生成回滚SQL | 1分40秒 | 65分钟 |
1.1G binlog生成原始SQL | 1分30秒 | 50分钟 |
1.1G binlog生成表DML统计信息、以及事务统计信息 | 40秒 | 不支持 |
四、安装
-- 申请一台全新的主机
docker rm -f lhrmy2sql
docker run -d --name lhrmy2sql -h lhrmy2sql \
--privileged=true lhrbest/lhrcentos76:8.0 \
/usr/sbin/init
docker exec -it lhrmy2sql bash
-- 方法1：编译安装
yum install -y golang
go version
go env | grep GOPATH
mkdir -p /root/go/src
cd /root/go/src
git clone https://github.com/liuhr/my2sql.git
cd my2sql/
go build .
-- 方法2：直接下载编译好的二进制文件。
-- https://github.com/liuhr/my2sql/blob/master/releases/my2sql
wget https://raw.githubusercontent.com/liuhr/my2sql/master/releases/my2sql
mv my2sql /usr/local/bin/my2sql
chmod +x /usr/local/bin/my2sql
-- 若不能下载，请添加以下解析：
echo "
13.229.188.59 github.com
199.232.4.133 raw.githubusercontent.com
" >> /etc/hosts五、重要参数说明
-U 优先使用unique key作为where条件，默认false
-add-extraInfo 是否把database/table/datetime/binlogposition...信息以注释的方式加入生成的每条sql前，默认false
datetime=2020-07-16_10:44:09 database=orchestrator table=cluster_domain_name binlog=mysql-bin.011519 startpos=15552 stoppos=15773 UPDATE `orchestrator`.`cluster_domain_name` SET `last_registered`='2020-07-16 10:44:09' WHERE `cluster_name`='192.168.1.1:3306'
-big-trx-row-limit n transaction with affected rows greater or equal to this value is considerated as big transaction 找出影响了n行数据的事务，默认500条
-databases 、 -tables 库及表条件过滤, 以逗号分隔
-sql 要解析的sql类型，可选参数insert、update、delete，默认全部解析
-doNotAddPrifixDb Prefix table name witch database name in sql,ex: insert into db1.tb1 (x1, x1) values (y1, y1) 默认生成insert into db1.tb1 (x1, x1) values (y1, y1)类sql，也可以生成不带库名的sql
-file-per-table 为每个表生成一个sql文件
-full-columns For update sql, include unchanged columns. for update and delete, use all columns to build where condition. default false, this is, use changed columns to build set part, use primary/unique key to build where condition 生成的sql是否带全列信息，默认false
-ignorePrimaryKeyForInsert 生成的insert语句是否去掉主键，默认false
-output-dir 将生成的结果存放到制定目录
-output-toScreen 将生成的结果打印到屏幕，默认写到文件
-threads 线程数，默认8个
-work-type 2sql表示生成原始sql，rollback表示生成回滚sql，stats表示只统计DML、事务信息
六、使用案例
6.1 解析出标准SQL
根据时间点解析出标准SQL
./my2sql -user root -password xxxx -host 127.0.0.1 -port 3306 -work-type 2sql \
-start-file mysql-bin.011259 -start-datetime "2020-07-16 10:20:00" -stop-datetime "2020-07-16 11:00:00" \
-output-dir ./tmpdir根据pos点解析出标准SQL
./my2sql -user root -password xxxx -host 127.0.0.1 -port 3306 -work-type 2sql \
-start-file mysql-bin.011259 -start-pos 4 -stop-file mysql-bin.011259 -stop-pos 583918266 \
-output-dir ./tmpdir6.2 解析出回滚SQL
根据时间点解析出回滚SQL
./my2sql -user root -password xxxx -host 127.0.0.1 -port 3306 -work-type rollback \
-start-file mysql-bin.011259 -start-datetime "2020-07-16 10:20:00" -stop-datetime "2020-07-16 11:00:00" \
-output-dir ./tmpdir根据pos点解析出回滚SQL
./my2sql -user root -password xxxx -host 127.0.0.1 -port 3306 -work-type rollback \
-start-file mysql-bin.011259 -start-pos 4 -stop-file mysql-bin.011259 -stop-pos 583918266 \
-output-dir ./tmpdir6.3 统计DML以及大事务
统计时间范围各个表的DML操作数量，统计一个事务大于500条、时间大于300秒的事务
./my2sql -user root -password xxxx -host 127.0.0.1 -port 3306 -work-type stats \
-start-file mysql-bin.011259 -start-datetime "2020-07-16 10:20:00" -stop-datetime "2020-07-16 11:00:00" \
-big-trx-row-limit 500 -long-trx-seconds 300 -output-dir ./tmpdir统计一段pos点范围各个表的DML操作数量，统计一个事务大于500条、时间大于300秒的事务
./my2sql -user root -password xxxx -host 127.0.0.1 -port 3306 -work-type stats \
-start-file mysql-bin.011259 -start-pos 4 -stop-file mysql-bin.011259 -stop-pos 583918266 \
-big-trx-row-limit 500 -long-trx-seconds 300 -output-dir ./tmpdir6.4 从某一个pos点解析出标准SQL，并且持续打印到屏幕
./my2sql -user root -password xxxx -host 127.0.0.1 -port 3306 -work-type 2sql \
-start-file mysql-bin.011259 -start-pos 4 -output-toScreen 七、限制
- 使用回滚/闪回功能时，binlog格式必须为row,且binlog_row_image=full， DML统计以及大事务分析不受影响
- 只能回滚DML， 不能回滚DDL
- 支持指定-tl时区来解释binlog中time/datetime字段的内容。开始时间-start-datetime与结束时间-stop-datetime也会使用此指定的时区， 但注意此开始与结束时间针对的是binlog event header中保存的unix timestamp。结果中的额外的datetime时间信息都是binlog event header中的unix timestamp
- 此工具是伪装成从库拉取binlog，需要连接数据库的用户有SELECT, REPLICATION SLAVE, REPLICATION CLIENT权限
- MySQL8.0版本需要在配置文件中加入default_authentication_plugin =mysql_native_password，用户密码认证必须是mysql_native_password才能解析
八、案例演示
8.1 准备MySQL环境
docker rm -f mysql3306
docker run -d --name mysql3306 -h mysql3306 -p 3306:3306 \
-v /etc/mysql/mysql3306/conf:/etc/mysql/conf.d \
-e MYSQL_ROOT_PASSWORD=lhr -e TZ=Asia/Shanghai \
mysql:5.7.30
docker exec -it mysql3306 bash
docker logs -f mysql3306
cat > /etc/mysql/mysql3306/conf/my.cnf <<"EOF"
[mysqld]
default-time-zone = '+8:00'
log_timestamps = SYSTEM
skip-name-resolve
log-bin
server_id=573306
character_set_server=utf8mb4
EOF
docker restart mysql3306
mysql -uroot -plhr -h192.168.66.35 -P3306
create database lhrdb default character set utf8mb4;8.2 执行DML操作
show master logs;
flush logs;
select now();
use lhrdb;
CREATE TABLE `student` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`number` int(11) NOT NULL,
`name` varchar(255) DEFAULT NULL,
`add_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP COMMENT '添加的时间',
`content` json DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `idx_name` (`number`,`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1233,26,'ranran','2020-07-15 19:06:03',null);
INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1232,134,'asdf','2020-07-12 11:08:41',null);
INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1231,21,'chenxi','2020-07-12 10:12:45',null);
INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1229,20,'chenxi','2020-07-11 16:20:50',null);
INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1227,18,'hanran','2020-07-06 21:55:48','{\"age\":13,\"author\":\"liuhan\"}');
select * from student;
select now();
show master logs;
show binlog events in 'mysql3306-bin.000002';执行过程：
MySQL [(none)]> show master logs;
+----------------------+-----------+
| Log_name | File_size |
+----------------------+-----------+
| mysql3306-bin.000001 | 3071539 |
| mysql3306-bin.000002 | 154 |
| mysql3306-bin.000003 | 154 |
+----------------------+-----------+
3 rows in set (0.05 sec)
MySQL [(none)]>
MySQL [(none)]> create database lhrdb default character set utf8mb4;
Query OK, 1 row affected (0.05 sec)
MySQL [(none)]> show master logs;
+----------------------+-----------+
| Log_name | File_size |
+----------------------+-----------+
| mysql3306-bin.000001 | 3071539 |
| mysql3306-bin.000002 | 154 |
| mysql3306-bin.000003 | 346 |
+----------------------+-----------+
3 rows in set (0.05 sec)
MySQL [(none)]> flush logs;
Query OK, 0 rows affected (0.06 sec)
MySQL [(none)]>
MySQL [(none)]> select now();
+---------------------+
| now() |
+---------------------+
| 2021-02-26 12:22:38 |
+---------------------+
1 row in set (0.05 sec)
MySQL [(none)]>
MySQL [(none)]> use lhrdb;
Database changed
MySQL [lhrdb]> CREATE TABLE `student` (
-> `id` int(11) NOT NULL AUTO_INCREMENT,
-> `number` int(11) NOT NULL,
-> `name` varchar(255) DEFAULT NULL,
-> `add_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP COMMENT '添加的时间',
-> `content` json DEFAULT NULL,
-> PRIMARY KEY (`id`),
-> UNIQUE KEY `idx_name` (`number`,`name`)
-> ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
Query OK, 0 rows affected (0.07 sec)
MySQL [lhrdb]> INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1233,26,'ranran','2020-07-15 19:06:03',null);
Query OK, 1 row affected (0.08 sec)
MySQL [lhrdb]> INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1232,134,'asdf','2020-07-12 11:08:41',null);
Query OK, 1 row affected (0.05 sec)
MySQL [lhrdb]> INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1231,21,'chenxi','2020-07-12 10:12:45',null);
Query OK, 1 row affected (0.06 sec)
MySQL [lhrdb]> INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1229,20,'chenxi','2020-07-11 16:20:50',null);
Query OK, 1 row affected (0.05 sec)
MySQL [lhrdb]> INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1227,18,'hanran','2020-07-06 21:55:48','{\"age\":13,\"author\":\"liuhan\"}');
Query OK, 1 row affected (0.05 sec)
MySQL [lhrdb]>
MySQL [lhrdb]> select * from student;
+------+--------+--------+---------------------+---------------------------------+
| id | number | name | add_time | content |
+------+--------+--------+---------------------+---------------------------------+
| 1227 | 18 | hanran | 2020-07-06 21:55:48 | {"age": 13, "author": "liuhan"} |
| 1229 | 20 | chenxi | 2020-07-11 16:20:50 | NULL |
| 1231 | 21 | chenxi | 2020-07-12 10:12:45 | NULL |
| 1232 | 134 | asdf | 2020-07-12 11:08:41 | NULL |
| 1233 | 26 | ranran | 2020-07-15 19:06:03 | NULL |
+------+--------+--------+---------------------+---------------------------------+
5 rows in set (0.05 sec)
MySQL [lhrdb]> select now();
+---------------------+
| now() |
+---------------------+
| 2021-02-26 12:23:16 |
+---------------------+
1 row in set (0.05 sec)
MySQL [lhrdb]>
MySQL [lhrdb]> show master logs;
+----------------------+-----------+
| Log_name | File_size |
+----------------------+-----------+
| mysql3306-bin.000001 | 3071539 |
| mysql3306-bin.000002 | 154 |
| mysql3306-bin.000003 | 397 |
| mysql3306-bin.000004 | 2131 |
+----------------------+-----------+
4 rows in set (0.05 sec)
MySQL [lhrdb]> show binlog events in 'mysql3306-bin.000004';
+----------------------+------+----------------+-----------+-------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Log_name | Pos | Event_type | Server_id | End_log_pos | Info |
+----------------------+------+----------------+-----------+-------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| mysql3306-bin.000004 | 4 | Format_desc | 573306 | 123 | Server ver: 5.7.30-log, Binlog ver: 4 |
| mysql3306-bin.000004 | 123 | Previous_gtids | 573306 | 154 | |
| mysql3306-bin.000004 | 154 | Anonymous_Gtid | 573306 | 219 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS' |
| mysql3306-bin.000004 | 219 | Query | 573306 | 634 | use `lhrdb`; CREATE TABLE `student` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`number` int(11) NOT NULL,
`name` varchar(255) DEFAULT NULL,
`add_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP COMMENT '添加的时间',
`content` json DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `idx_name` (`number`,`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 |
| mysql3306-bin.000004 | 634 | Anonymous_Gtid | 573306 | 699 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS' |
| mysql3306-bin.000004 | 699 | Query | 573306 | 780 | BEGIN |
| mysql3306-bin.000004 | 780 | Table_map | 573306 | 839 | table_id: 108 (lhrdb.student) |
| mysql3306-bin.000004 | 839 | Write_rows | 573306 | 895 | table_id: 108 flags: STMT_END_F |
| mysql3306-bin.000004 | 895 | Xid | 573306 | 926 | COMMIT /* xid=13 */ |
| mysql3306-bin.000004 | 926 | Anonymous_Gtid | 573306 | 991 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS' |
| mysql3306-bin.000004 | 991 | Query | 573306 | 1072 | BEGIN |
| mysql3306-bin.000004 | 1072 | Table_map | 573306 | 1131 | table_id: 108 (lhrdb.student) |
| mysql3306-bin.000004 | 1131 | Write_rows | 573306 | 1185 | table_id: 108 flags: STMT_END_F |
| mysql3306-bin.000004 | 1185 | Xid | 573306 | 1216 | COMMIT /* xid=14 */ |
| mysql3306-bin.000004 | 1216 | Anonymous_Gtid | 573306 | 1281 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS' |
| mysql3306-bin.000004 | 1281 | Query | 573306 | 1362 | BEGIN |
| mysql3306-bin.000004 | 1362 | Table_map | 573306 | 1421 | table_id: 108 (lhrdb.student) |
| mysql3306-bin.000004 | 1421 | Write_rows | 573306 | 1477 | table_id: 108 flags: STMT_END_F |
| mysql3306-bin.000004 | 1477 | Xid | 573306 | 1508 | COMMIT /* xid=15 */ |
| mysql3306-bin.000004 | 1508 | Anonymous_Gtid | 573306 | 1573 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS' |
| mysql3306-bin.000004 | 1573 | Query | 573306 | 1654 | BEGIN |
| mysql3306-bin.000004 | 1654 | Table_map | 573306 | 1713 | table_id: 108 (lhrdb.student) |
| mysql3306-bin.000004 | 1713 | Write_rows | 573306 | 1769 | table_id: 108 flags: STMT_END_F |
| mysql3306-bin.000004 | 1769 | Xid | 573306 | 1800 | COMMIT /* xid=16 */ |
| mysql3306-bin.000004 | 1800 | Anonymous_Gtid | 573306 | 1865 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS' |
| mysql3306-bin.000004 | 1865 | Query | 573306 | 1946 | BEGIN |
| mysql3306-bin.000004 | 1946 | Table_map | 573306 | 2005 | table_id: 108 (lhrdb.student) |
| mysql3306-bin.000004 | 2005 | Write_rows | 573306 | 2100 | table_id: 108 flags: STMT_END_F |
| mysql3306-bin.000004 | 2100 | Xid | 573306 | 2131 | COMMIT /* xid=17 */ |
+----------------------+------+----------------+-----------+-------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
29 rows in set (0.05 sec)8.3 解析binlog生成标准SQL
可以根据时间点解析出标准SQL：
my2sql -user root -password lhr -port 3306 \
-host 192.168.66.35 -databases lhrdb -tables student \
-work-type 2sql -start-file mysql3306-bin.000004 \
-start-datetime "2021-02-26 12:22:38" --stop-datetime "2021-02-26 12:23:16" \
-output-dir /my2sql/也可以根据binlog的pos点解析出标准SQL：
my2sql -user root -password lhr -port 3306 \
-host 192.168.66.35 -databases lhrdb -tables student \
-work-type 2sql -start-file mysql3306-bin.000004 \
-start-pos 154 -stop-file mysql3306-bin.000004 -stop-pos 2131 \
-output-dir /my2sql/执行过程：
[root@lhrmy2sql my2sql]# my2sql -user root -password lhr -port 3306 \
> -host 192.168.66.35 -databases lhrdb -tables student \
> -work-type 2sql -start-file mysql3306-bin.000004 \
> -start-pos 154 -stop-file mysql3306-bin.000004 -stop-pos 2131 \
> -output-dir /my2sql/
[2021/02/26 12:27:42] [info] events.go:208 start thread to write redo/rollback sql into file
[2021/02/26 12:27:42] [info] binlogsyncer.go:144 create BinlogSyncer with config {1113306 mysql 192.168.66.35 3306 root utf8 false false <nil> false Local false 0 0s 0s 0 false false 0}
[2021/02/26 12:27:42] [info] binlogsyncer.go:360 begin to sync binlog from position (mysql3306-bin.000004, 154)
[2021/02/26 12:27:42] [info] events.go:58 start thread 2 to generate redo/rollback sql
[2021/02/26 12:27:42] [info] events.go:58 start thread 1 to generate redo/rollback sql
[2021/02/26 12:27:42] [info] stats_process.go:166 start thread to analyze statistics from binlog
[2021/02/26 12:27:42] [info] repl.go:15 start to get binlog from mysql
[2021/02/26 12:27:42] [info] binlogsyncer.go:777 rotate to (mysql3306-bin.000004, 154)
[2021/02/26 12:27:42] [info] com.go:57 stop to get event. StopFilePos set. currentBinlog (mysql3306-bin.000004, 2131) StopFilePos (mysql3306-bin.000004, 2131)
[2021/02/26 12:27:42] [info] repl.go:17 finish getting binlog from mysql
[2021/02/26 12:27:42] [info] events.go:183 exit thread 1 to generate redo/rollback sql
[2021/02/26 12:27:42] [info] stats_process.go:266 exit thread to analyze statistics from binlog
[2021/02/26 12:27:42] [info] events.go:183 exit thread 2 to generate redo/rollback sql
[2021/02/26 12:27:42] [info] events.go:272 finish writing redo/forward sql into file
[2021/02/26 12:27:42] [info] events.go:275 exit thread to write redo/rollback sql into file
[root@lhrmy2sql my2sql]# ll
total 12
-rw-r--r-- 1 root root 107 Feb 26 12:27 biglong_trx.txt
-rw-r--r-- 1 root root 291 Feb 26 12:27 binlog_status.txt
-rw-r--r-- 1 root root 671 Feb 26 12:27 forward.4.sql
[root@lhrmy2sql my2sql]# more biglong_trx.txt
binlog starttime stoptime startpos stoppos rows duration tables
[root@lhrmy2sql my2sql]# more binlog_status.txt
binlog starttime stoptime startpos stoppos inserts updates deletes database table
mysql3306-bin.000004 2021-02-26_12:23:06 2021-02-26_12:23:06 780 2100 5 0 0 lhrdb student
[root@lhrmy2sql my2sql]# more forward.4.sql
INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1233,26,'ranran','2020-07-15 19:06:03',null);
INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1232,134,'asdf','2020-07-12 11:08:41',null);
INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1231,21,'chenxi','2020-07-12 10:12:45',null);
INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1229,20,'chenxi','2020-07-11 16:20:50',null);
INSERT INTO `lhrdb`.`student` (`id`,`number`,`name`,`add_time`,`content`) VALUES (1227,18,'hanran','2020-07-06 21:55:48','{\"age\":13,\"author\":\"liuhan\"}');可以看到，原始的SQL插入语句已经被解析出来了。
8.4 执行闪回操作
根据binlog的pos点解析出回滚SQL
my2sql -user root -password lhr -port 3306 \
-host 192.168.66.35 -databases lhrdb -tables student \
-work-type rollback -start-file mysql3306-bin.000004 \
-start-pos 154 -stop-file mysql3306-bin.000004 -stop-pos 2131 \
-output-dir /my2sql/执行过程：
[root@lhrmy2sql my2sql]# my2sql -user root -password lhr -port 3306 \
> -host 192.168.66.35 -databases lhrdb -tables student \
> -work-type rollback -start-file mysql3306-bin.000004 \
> -start-pos 154 -stop-file mysql3306-bin.000004 -stop-pos 2131 \
> -output-dir /my2sql/
[2021/02/26 12:29:51] [info] binlogsyncer.go:144 create BinlogSyncer with config {1113306 mysql 192.168.66.35 3306 root utf8 false false <nil> false Local false 0 0s 0s 0 false false 0}
[2021/02/26 12:29:51] [info] binlogsyncer.go:360 begin to sync binlog from position (mysql3306-bin.000004, 154)
[2021/02/26 12:29:51] [info] events.go:208 start thread to write redo/rollback sql into file
[2021/02/26 12:29:51] [info] events.go:58 start thread 2 to generate redo/rollback sql
[2021/02/26 12:29:51] [info] events.go:58 start thread 1 to generate redo/rollback sql
[2021/02/26 12:29:51] [info] stats_process.go:166 start thread to analyze statistics from binlog
[2021/02/26 12:29:51] [info] repl.go:15 start to get binlog from mysql
[2021/02/26 12:29:51] [info] binlogsyncer.go:777 rotate to (mysql3306-bin.000004, 154)
[2021/02/26 12:29:51] [info] com.go:57 stop to get event. StopFilePos set. currentBinlog (mysql3306-bin.000004, 2131) StopFilePos (mysql3306-bin.000004, 2131)
[2021/02/26 12:29:51] [info] repl.go:17 finish getting binlog from mysql
[2021/02/26 12:29:51] [info] stats_process.go:266 exit thread to analyze statistics from binlog
[2021/02/26 12:29:51] [info] events.go:183 exit thread 1 to generate redo/rollback sql
[2021/02/26 12:29:51] [info] events.go:183 exit thread 2 to generate redo/rollback sql
[2021/02/26 12:29:51] [info] events.go:257 finish writing rollback sql into tmp files, start to revert content order of tmp files
[2021/02/26 12:29:51] [info] rollback_process.go:15 start thread 1 to revert rollback sql files
[2021/02/26 12:29:51] [info] rollback_process.go:41 start to revert tmp file /my2sql/.rollback.4.sql into /my2sql/rollback.4.sql
[2021/02/26 12:29:51] [info] rollback_process.go:156 finish reverting tmp file /my2sql/.rollback.4.sql into /my2sql/rollback.4.sql
[2021/02/26 12:29:51] [info] rollback_process.go:25 exit thread 1 to revert rollback sql files
[2021/02/26 12:29:51] [info] events.go:270 finish reverting content order of tmp files
[2021/02/26 12:29:51] [info] events.go:275 exit thread to write redo/rollback sql into file
[root@lhrmy2sql my2sql]# ll
total 12
-rw-r--r-- 1 root root 107 Feb 26 12:29 biglong_trx.txt
-rw-r--r-- 1 root root 291 Feb 26 12:29 binlog_status.txt
-rw-r--r-- 1 root root 235 Feb 26 12:29 rollback.4.sql
[root@lhrmy2sql my2sql]# more biglong_trx.txt
binlog starttime stoptime startpos stoppos rows duration tables
[root@lhrmy2sql my2sql]# more binlog_status.txt
binlog starttime stoptime startpos stoppos inserts updates deletes database table
mysql3306-bin.000004 2021-02-26_12:23:06 2021-02-26_12:23:06 780 2100 5 0 0 lhrdb student
[root@lhrmy2sql my2sql]# more rollback.4.sql
DELETE FROM `lhrdb`.`student` WHERE `id`=1227;
DELETE FROM `lhrdb`.`student` WHERE `id`=1229;
DELETE FROM `lhrdb`.`student` WHERE `id`=1231;
DELETE FROM `lhrdb`.`student` WHERE `id`=1232;
DELETE FROM `lhrdb`.`student` WHERE `id`=1233;可以看到，回滚SQL是DELETE，已经生成。
要回滚该事务，则执行该SQL即可：
mysql -uroot -plhr -h192.168.66.35 -P3306 < rollback.4.sql 8.5 解析binlog 统计DML、长事务与大事务分析
MySQL [lhrdb]> flush logs;
Query OK, 0 rows affected (0.06 sec)
MySQL [lhrdb]> show master logs;
+----------------------+-----------+
| Log_name | File_size |
+----------------------+-----------+
| mysql3306-bin.000001 | 3071539 |
| mysql3306-bin.000002 | 154 |
| mysql3306-bin.000003 | 397 |
| mysql3306-bin.000004 | 2182 |
| mysql3306-bin.000005 | 154 |
+----------------------+-----------+
5 rows in set (0.05 sec)
-- sysbench创建表并插入数据
[root@lhrmy2sql my2sql]# sysbench /usr/share/sysbench/oltp_common.lua --time=100 --mysql-host=192.168.66.35 --mysql-port=3306 --mysql-user=root --mysql-password=lhr --mysql-db=lhrdb --table-size=10000 --tables=10 --threads=16 --events=999999999 prepare
sysbench 1.0.17 (using system LuaJIT 2.0.4)
Initializing worker threads...
Creating table 'sbtest8'...
Creating table 'sbtest4'...
Creating table 'sbtest2'...
Creating table 'sbtest7'...
Creating table 'sbtest1'...
Creating table 'sbtest5'...
Creating table 'sbtest3'...
Creating table 'sbtest10'...
Creating table 'sbtest6'...
Creating table 'sbtest9'...
Inserting 10000 records into 'sbtest2'
Inserting 10000 records into 'sbtest5'
Inserting 10000 records into 'sbtest8'
Inserting 10000 records into 'sbtest10'
Inserting 10000 records into 'sbtest7'
Inserting 10000 records into 'sbtest3'
Inserting 10000 records into 'sbtest9'
Inserting 10000 records into 'sbtest1'
Inserting 10000 records into 'sbtest6'
Inserting 10000 records into 'sbtest4'
Creating a secondary index on 'sbtest2'...
Creating a secondary index on 'sbtest5'...
Creating a secondary index on 'sbtest8'...
Creating a secondary index on 'sbtest7'...
Creating a secondary index on 'sbtest10'...
Creating a secondary index on 'sbtest3'...
Creating a secondary index on 'sbtest9'...
Creating a secondary index on 'sbtest4'...
Creating a secondary index on 'sbtest6'...
Creating a secondary index on 'sbtest1'...使用my2sql进行解析：
my2sql -user root -password lhr -port 3306 \
-host 192.168.66.35 -databases lhrdb -tables student \
-work-type rollback -start-file mysql3306-bin.000004 \
-start-pos 154 -stop-file mysql3306-bin.000004 -stop-pos 2131 \
-output-dir /my2sql/执行过程：
[root@lhrmy2sql my2sql]# my2sql -user root -password lhr -port 3306 \
> -host 192.168.66.35 -databases lhrdb \
> -big-trx-row-limit 500 -long-trx-seconds 300 \
> -work-type stats -start-file mysql3306-bin.000005 \
> -start-pos 154 -stop-file mysql3306-bin.000005 -stop-pos 19097041 \
> -output-dir /my2sql/
[2021/02/26 12:44:51] [info] binlogsyncer.go:144 create BinlogSyncer with config {1113306 mysql 192.168.66.35 3306 root utf8 false false <nil> false Local false 0 0s 0s 0 false false 0}
[2021/02/26 12:44:51] [info] stats_process.go:166 start thread to analyze statistics from binlog
[2021/02/26 12:44:51] [info] binlogsyncer.go:360 begin to sync binlog from position (mysql3306-bin.000005, 154)
[2021/02/26 12:44:51] [info] repl.go:15 start to get binlog from mysql
[2021/02/26 12:44:51] [info] binlogsyncer.go:777 rotate to (mysql3306-bin.000005, 154)
[2021/02/26 12:44:51] [info] com.go:57 stop to get event. StopFilePos set. currentBinlog (mysql3306-bin.000005, 19097041) StopFilePos (mysql3306-bin.000005, 19097041)
[2021/02/26 12:44:51] [info] repl.go:17 finish getting binlog from mysql
[2021/02/26 12:44:51] [info] stats_process.go:266 exit thread to analyze statistics from binlog
[root@lhrmy2sql my2sql]#
[root@lhrmy2sql my2sql]# ll
total 12
-rw-r--r-- 1 root root 6311 Feb 26 12:44 biglong_trx.txt
-rw-r--r-- 1 root root 1614 Feb 26 12:44 binlog_status.txt
[root@lhrmy2sql my2sql]# more biglong_trx.txt
binlog starttime stoptime startpos stoppos rows duration tables
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:44 3710 522152 2716 0 [lhrdb.sbtest2(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:44 522217 1040659 2716 0 [lhrdb.sbtest5(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:45 2021-02-26_12:33:45 1040724 1559166 2716 0 [lhrdb.sbtest2(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:45 2021-02-26_12:33:45 1559231 2077673 2716 0 [lhrdb.sbtest5(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:44 2077738 2596180 2716 0 [lhrdb.sbtest8(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:45 2021-02-26_12:33:45 2596245 3114687 2716 0 [lhrdb.sbtest2(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:45 2021-02-26_12:33:45 3114752 3633194 2716 0 [lhrdb.sbtest8(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:45 2021-02-26_12:33:45 3633259 4151701 2716 0 [lhrdb.sbtest5(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:44 4151766 4670208 2716 0 [lhrdb.sbtest7(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:45 2021-02-26_12:33:45 4670273 5023855 1852 0 [lhrdb.sbtest2(inserts=1852, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:45 2021-02-26_12:33:45 5023920 5542362 2716 0 [lhrdb.sbtest8(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:45 2021-02-26_12:33:45 5542427 5896009 1852 0 [lhrdb.sbtest5(inserts=1852, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:44 5896074 6414517 2716 0 [lhrdb.sbtest10(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:45 2021-02-26_12:33:45 6414582 6933024 2716 0 [lhrdb.sbtest7(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:44 6933089 7451531 2716 0 [lhrdb.sbtest1(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:44 7451596 7970038 2716 0 [lhrdb.sbtest3(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:44 7970103 8488545 2716 0 [lhrdb.sbtest9(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:45 2021-02-26_12:33:45 8488610 8842192 1852 0 [lhrdb.sbtest8(inserts=1852, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 8842257 9360700 2716 0 [lhrdb.sbtest10(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:44 9360765 9879207 2716 0 [lhrdb.sbtest6(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:44 9879272 10397714 2716 0 [lhrdb.sbtest4(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 10397779 10916221 2716 0 [lhrdb.sbtest7(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 10916457 11434899 2716 0 [lhrdb.sbtest3(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 11434964 11953406 2716 0 [lhrdb.sbtest1(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 11953642 12472084 2716 0 [lhrdb.sbtest9(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 12472149 12990591 2716 0 [lhrdb.sbtest4(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 12990656 13509098 2716 0 [lhrdb.sbtest6(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 13509163 14027606 2716 0 [lhrdb.sbtest10(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 14027671 14381253 1852 0 [lhrdb.sbtest7(inserts=1852, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 14381489 14899931 2716 0 [lhrdb.sbtest3(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 14899996 15253579 1852 0 [lhrdb.sbtest10(inserts=1852, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 15253644 15772086 2716 0 [lhrdb.sbtest9(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 15772151 16290593 2716 0 [lhrdb.sbtest6(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 16290658 16809100 2716 0 [lhrdb.sbtest4(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 16809165 17327607 2716 0 [lhrdb.sbtest1(inserts=2716, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 17327843 17681425 1852 0 [lhrdb.sbtest3(inserts=1852, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 17681490 18035072 1852 0 [lhrdb.sbtest9(inserts=1852, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 18035137 18388719 1852 0 [lhrdb.sbtest4(inserts=1852, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 18388784 18742366 1852 0 [lhrdb.sbtest6(inserts=1852, updates=0, deletes=0)]
mysql3306-bin.000005 2021-02-26_12:33:46 2021-02-26_12:33:46 18742431 19096013 1852 0 [lhrdb.sbtest1(inserts=1852, updates=0, deletes=0)]
[root@lhrmy2sql my2sql]# more binlog_status.txt
binlog starttime stoptime startpos stoppos inserts updates deletes database table
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:45 522290 5895978 10000 0 0 lhrdb sbtest5
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:46 4151839 14381222 10000 0 0 lhrdb sbtest7
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:46 5896147 15253548 10000 0 0 lhrdb sbtest10
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:46 6933162 19095982 10000 0 0 lhrdb sbtest1
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:46 7451669 17681394 10000 0 0 lhrdb sbtest3
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:46 9360838 18742335 10000 0 0 lhrdb sbtest6
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:46 9879345 18388688 10000 0 0 lhrdb sbtest4
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:45 3783 5023824 10000 0 0 lhrdb sbtest2
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:45 2077811 8842161 10000 0 0 lhrdb sbtest8
mysql3306-bin.000005 2021-02-26_12:33:44 2021-02-26_12:33:46 7970176 18035041 10000 0 0 lhrdb sbtest9 ● 本文作者：小麦苗，部分内容整理自网络，若有侵权请联系小麦苗删除
原创声明：本文系作者授权腾讯云开发者社区发表，未经许可，不得转载。
如有侵权，请联系 cloudcommunity@tencent.com 删除。
原创声明：本文系作者授权腾讯云开发者社区发表，未经许可，不得转载。
如有侵权，请联系 cloudcommunity@tencent.com 删除。
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