一.打開主配置文件 添加以下參數

[root@db1 ~]# vim /etc/my.cnf

server_id=6? ?# 服務id

log_bin=/data/binlog/mysql-bin #二進制日志存放路徑和二進制日志的前綴? /data/binlog目錄要提前創建好,并更改所屬者和組為mysql mysql-bin會自動生成

binlog_format=row? ?#設置日志文件記錄DML語句的格式

二.重啟mysql

[root@db1 ~]# systemctl restart mysql

三.登錄mysql

[root@db1 ~]# mysql -p

Enter password:

Welcome to the MySQL monitor.? Commands end with ; or \g.

Your MySQL connection id is 10

Server version: 5.7.29-log MySQL Community Server (GPL)

Copyright (c) 2000, 2020, 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>

四.創建一個庫并插入些內容

mysql> create database test charset utf8mb4;

Query OK, 1 row affected (0.00 sec)

mysql> use test;

Database changed

mysql> create table t1(id int,name varchar(11));

Query OK, 0 rows affected (0.02 sec)

mysql> insert into t1 values(1,'小明');

Query OK, 1 row affected (0.00 sec)

mysql> insert into t1 values(2,'小陳');

Query OK, 1 row affected (0.00 sec)

mysql> select * from t1;

+------+--------+

| id? | name? |

+------+--------+

|? ? 1 | 小明? |

|? ? 2 | 小陳? |

+------+--------+

2 rows in set (0.00 sec)

五.刪除數據庫

mysql> drop database test;

Query OK, 1 row affected (0.01 sec)

六.查看二進制日志

mysql> show binary logs;? #查看所有已存在的二進制文件

+------------------+-----------+

| Log_name? ? ? ? | File_size |

+------------------+-----------+

| mysql-bin.000001 |? ? ? 201 |

| mysql-bin.000002 |? ? ? 201 |

| mysql-bin.000003 |? ? ? 201 |

| mysql-bin.000004 |? ? ? 1992 |

+------------------+-----------+

4 rows in set (0.00 sec)

mysql> show master status; #查看正在使用的二進制文件

+------------------+----------+--------------+------------------+-------------------+

| File? ? ? ? ? ? | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |

+------------------+----------+--------------+------------------+-------------------+

| mysql-bin.000004 |? ? 1992 |? ? ? ? ? ? ? |? ? ? ? ? ? ? ? ? |? ? ? ? ? ? ? ? ? |

+------------------+----------+--------------+------------------+-------------------+

1 row in set (0.00 sec)

mysql> show binlog events in 'mysql-bin.000004';? #查看二進制文件記錄的事件

+------------------+------+----------------+-----------+-------------+--------------------------------------------------------+

| Log_name? ? ? ? | Pos? | Event_type? ? | Server_id | End_log_pos | Info? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

+------------------+------+----------------+-----------+-------------+--------------------------------------------------------+

| mysql-bin.000004 |? ? 4 | Format_desc? ? |? ? ? ? 6 |? ? ? ? 123 | Server ver: 5.7.29-log, Binlog ver: 4? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 123 | Previous_gtids |? ? ? ? 6 |? ? ? ? 154 |? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 154 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 219 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 219 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 336 | create? database binlog charset=utf8mb4? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 336 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 401 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 401 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 519 | use `binlog`; create table t1 (id int,name varchar(4)) |

| mysql-bin.000004 |? 519 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 584 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 584 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 658 | BEGIN? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 658 | Table_map? ? ? |? ? ? ? 6 |? ? ? ? 708 | table_id: 108 (binlog.t1)? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 708 | Write_rows? ? |? ? ? ? 6 |? ? ? ? 751 | table_id: 108 flags: STMT_END_F? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 751 | Table_map? ? ? |? ? ? ? 6 |? ? ? ? 801 | table_id: 108 (binlog.t1)? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 801 | Write_rows? ? |? ? ? ? 6 |? ? ? ? 844 | table_id: 108 flags: STMT_END_F? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 844 | Xid? ? ? ? ? ? |? ? ? ? 6 |? ? ? ? 875 | COMMIT /* xid=26 */? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 875 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 940 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 |? 940 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 1059 | create database qinagge charset utf8mb4? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1059 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 1124 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1124 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 1215 | drop database qinagge? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1215 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 1280 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1280 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 1399 | create database qiangge charset=utf8mb4? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1399 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 1464 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1464 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 1567 | use `qiangge`; create table t1(id int)? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1567 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 1632 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1632 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 1707 | BEGIN? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1707 | Table_map? ? ? |? ? ? ? 6 |? ? ? ? 1755 | table_id: 110 (qiangge.t1)? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1755 | Write_rows? ? |? ? ? ? 6 |? ? ? ? 1795 | table_id: 110 flags: STMT_END_F? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1795 | Xid? ? ? ? ? ? |? ? ? ? 6 |? ? ? ? 1826 | COMMIT /* xid=69 */? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1826 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 1891 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1891 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 1992 | drop database qiangge? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 1992 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 2057 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2057 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 2167 | create database test charset utf8mb4? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2167 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 2232 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2232 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 2346 | use `test`; create table t1(id int,name varchar(11))? |

| mysql-bin.000004 | 2346 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 2411 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2411 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 2483 | BEGIN? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2483 | Table_map? ? ? |? ? ? ? 6 |? ? ? ? 2531 | table_id: 112 (test.t1)? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2531 | Write_rows? ? |? ? ? ? 6 |? ? ? ? 2578 | table_id: 112 flags: STMT_END_F? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2578 | Table_map? ? ? |? ? ? ? 6 |? ? ? ? 2626 | table_id: 112 (test.t1)? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2626 | Write_rows? ? |? ? ? ? 6 |? ? ? ? 2670 | table_id: 112 flags: STMT_END_F? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2670 | Table_map? ? ? |? ? ? ? 6 |? ? ? ? 2718 | table_id: 112 (test.t1)? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2718 | Update_rows? ? |? ? ? ? 6 |? ? ? ? 2775 | table_id: 112 flags: STMT_END_F? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2775 | Xid? ? ? ? ? ? |? ? ? ? 6 |? ? ? ? 2806 | COMMIT /* xid=143 */? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2806 | Anonymous_Gtid |? ? ? ? 6 |? ? ? ? 2871 | SET @@SESSION.GTID_NEXT= 'ANONYMOUS'? ? ? ? ? ? ? ? ? |

| mysql-bin.000004 | 2871 | Query? ? ? ? ? |? ? ? ? 6 |? ? ? ? 2963 | drop database test? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? |

+------------------+------+----------------+-----------+-------------+--------------------------------------------------------+

43 rows in set (0.00 sec)

找到創建 test庫的起點和刪除表的起點

分別是2057和2871

七.把二進制日志輸出為sql文件

# start-position輸入出入起點? stop-postion輸入刪除表的起點 /data/binlog/就是一開始設置的存放二進制文件的目錄 再跟上當前使用的二進制文件mysql-bin.000004

[root@db1 ~]# mysqlbinlog --start-position=2057 --stop-position=2871 /data/binlog/mysql-bin.000004 > /tmp/test.sql

八.進入數據庫開始恢復數據

[root@db1 ~]# mysql -p

Enter password:

Welcome to the MySQL monitor.? Commands end with ; or \g.

Your MySQL connection id is 12

Server version: 5.7.29-log MySQL Community Server (GPL)

Copyright (c) 2000, 2020, 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> set sql_log_bin=0;? # 臨時關閉恢復時產生的新日志

mysql> source /tmp/test.sql

mysql> set sql_log_bin=1;?? 改回來

九.查看數據庫和數據

mysql> show databases;

+--------------------+

| Database? ? ? ? ? |

+--------------------+

| information_schema |

| mysql? ? ? ? ? ? ? |

| performance_schema |

| test? ? ? ? ? ? ? |

+--------------------+

10 rows in set (0.01 sec)

mysql> use test;

Database changed

mysql> select * from t1;

+------+--------+

| id? | name? |

+------+--------+

|? ? 1 | 小明? |

|? ? 2 | 小陳? |

+------+--------+

2 rows in set (0.00 sec)

表和數據還在 恢復成功!!!

使用gdit的記錄模式來恢復數據庫

一.打開配置文件添加以下兩個參數

[root@db1 ~]# vim /etc/my.cnf

gtid-mode=on? ?##開啟gtid模式

enforce-gtid-consistency=true ##強制gtid一致性

[root@db1 ~]# systemctl restart mysql---? ?###重啟服務

二.登錄數據庫

[root@db1 ~]# mysql -p

Enter password:

Welcome to the MySQL monitor.? Commands end with ; or \g.

Your MySQL connection id is 2

Server version: 5.7.29-log MySQL Community Server (GPL)

Copyright (c) 2000, 2020, 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>

三.創建一個數據庫并插入一些數據

mysql> create database test2 charset utf8mb4;? ###創建一個數據庫

Query OK, 1 row affected (0.01 sec)

mysql> use test2;

Database changed

mysql> create table t1(id int, name varchar(11));

Query OK, 0 rows affected (0.02 sec)

mysql> insert into t1 values(1,'小明');

Query OK, 1 row affected (0.00 sec)

mysql> insert into t1 values(2,'小陳');

Query OK, 1 row affected (0.00 sec)

mysql> select * from t1;

+------+--------+

| id? | name? |

+------+--------+

|? ? 1 | 小明? |

|? ? 2 | 小陳? |

+------+--------+

2 rows in set (0.00 sec)

四.刪除數據庫

mysql> drop database test2;Query OK, 1 row affected (0.02 sec)

五.查看二進制日志記錄

mysql> show master status; ##查看當前使用的是哪個二進制日志文件

+------------------+----------+--------------+------------------+------------------------------------------+

| File? ? ? ? ? ? | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set? ? ? ? ? ? ? ? ? ? ? ? |

+------------------+----------+--------------+------------------+------------------------------------------+

| mysql-bin.000005 |? ? 1035 |? ? ? ? ? ? ? |? ? ? ? ? ? ? ? ? | eee7e0b6-5466-11ea-9f97-005056bf8ab0:1-4 |

+------------------+----------+--------------+------------------+------------------------------------------+

1 row in set (0.00 sec)

mysql> show binlog events in 'mysql-bin.000005'; ##查看二進制文件發生的事情

發現gdit的1到3是建庫和查數據的gdit值

六.把二進制日志信息導出為sql文件

[root@db1 ~]# mysqlbinlog --skip-gtids --include-gtids='eee7e0b6-5466-11ea-9f97-005056bf8ab0:1-3' /data/binlog/mysql-bin.000005 >/tmp/gtid.sql

######--skip-gtids 作用:在導出時,忽略原有的gtid信息,恢復時生成最新的gtid信息######

七.登錄數據庫 開始恢復數據

[root@db1 ~]# mysql -p

Enter password:

Welcome to the MySQL monitor.? Commands end with ; or \g.

Your MySQL connection id is 3

Server version: 5.7.29-log MySQL Community Server (GPL)

Copyright (c) 2000, 2020, 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> set sql_log_bin=0; 臨時關閉恢復時產生的新日志

mysql> source /tmp/gtid.sql;

mysql> set sql_log_bin=1? 再開啟

mysql> show databases;? ### 查看數據庫

+--------------------+

| Database? ? ? ? ? |

+--------------------+

| information_schema |

| mysql? ? ? ? ? ? ? |

| performance_schema |

| test2? ? ? ? ? ? ? |

+--------------------+

11 rows in set (0.00 sec)

mysql> select * from t1;

+------+--------+

| id? | name? |

+------+--------+

|? ? 1 | 小明? |

|? ? 2 | 小陳? |

+------+--------+

2 rows in set (0.00 sec)

數據恢復成功

總結

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