MySQL binlog日志内容分析
1> MySQL的binlog 日志对于生产环境非常有用，任何时间对数据库的修改都会记录在binglog中；
当数据发生增删改，创建数据库对象都会记录到binlog中，数据库的复制也是基于binlog进行同步数据；
和SQL SERVER 数据库开启完整模式的原理一样，每一次的数据的变动都会记录在案；（对数据库的select,show这些操作不会记录在binlog）
下面介绍mysqlbinlog工具查看 二进制日志内容；
示例
1> 产生新的binlog日志 flush logs
1> 测试数据
1 create table test1 （id int）; 2 insert into test1 values (1); 3 insert into test1 values (2); 4 insert into test1 values (3); 5 delete from test1 where id=2;
2> 最新的binlog mysqlbinlog.000012
1 [root@localhost][(none)]> show binlog events in 'mysqlbinlog.000012'; 2 +--------------------+------+----------------+-----------+-------------+-----------------------------------------------------------------------+ 3 | Log_name | Pos | Event_type | Server_id | End_log_pos | Info | 4 +--------------------+------+----------------+-----------+-------------+-----------------------------------------------------------------------+ 5 | mysqlbinlog.000012 | 4 | Format_desc | 1 | 123 | Server ver: 5.7.25-log, Binlog ver: 4 | 6 | mysqlbinlog.000012 | 123 | Previous_gtids | 1 | 194 | 6e854266-e13f-11e9-9630-000c29ec17fe:8-40225 | 7 | mysqlbinlog.000012 | 194 | Gtid | 1 | 259 | SET @@SESSION.GTID_NEXT= '6e854266-e13f-11e9-9630-000c29ec17fe:40226' | 8 | mysqlbinlog.000012 | 259 | Query | 1 | 334 | BEGIN | 9 | mysqlbinlog.000012 | 334 | Rows_query | 1 | 386 | # insert into test1 values (1) | 10 | mysqlbinlog.000012 | 386 | Table_map | 1 | 437 | table_id: 111 (ecology.test1) | 11 | mysqlbinlog.000012 | 437 | Write_rows | 1 | 477 | table_id: 111 flags: STMT_END_F | 12 | mysqlbinlog.000012 | 477 | Xid | 1 | 508 | COMMIT /* xid=24229 */ | 13 | mysqlbinlog.000012 | 508 | Gtid | 1 | 573 | SET @@SESSION.GTID_NEXT= '6e854266-e13f-11e9-9630-000c29ec17fe:40227' | 14 | mysqlbinlog.000012 | 573 | Query | 1 | 648 | BEGIN | 15 | mysqlbinlog.000012 | 648 | Rows_query | 1 | 700 | # insert into test1 values (2) | 16 | mysqlbinlog.000012 | 700 | Table_map | 1 | 751 | table_id: 111 (ecology.test1) | 17 | mysqlbinlog.000012 | 751 | Write_rows | 1 | 791 | table_id: 111 flags: STMT_END_F | 18 | mysqlbinlog.000012 | 791 | Xid | 1 | 822 | COMMIT /* xid=24230 */ | 19 | mysqlbinlog.000012 | 822 | Gtid | 1 | 887 | SET @@SESSION.GTID_NEXT= '6e854266-e13f-11e9-9630-000c29ec17fe:40228' | 20 | mysqlbinlog.000012 | 887 | Query | 1 | 962 | BEGIN | 21 | mysqlbinlog.000012 | 962 | Rows_query | 1 | 1014 | # insert into test1 values (3) | 22 | mysqlbinlog.000012 | 1014 | Table_map | 1 | 1065 | table_id: 111 (ecology.test1) | 23 | mysqlbinlog.000012 | 1065 | Write_rows | 1 | 1105 | table_id: 111 flags: STMT_END_F | 24 | mysqlbinlog.000012 | 1105 | Xid | 1 | 1136 | COMMIT /* xid=24231 */ | 25 | mysqlbinlog.000012 | 1136 | Gtid | 1 | 1201 | SET @@SESSION.GTID_NEXT= '6e854266-e13f-11e9-9630-000c29ec17fe:40229' | 26 | mysqlbinlog.000012 | 1201 | Query | 1 | 1276 | BEGIN | 27 | mysqlbinlog.000012 | 1276 | Rows_query | 1 | 1329 | # delete from test1 where id =2 | 28 | mysqlbinlog.000012 | 1329 | Table_map | 1 | 1380 | table_id: 111 (ecology.test1) | 29 | mysqlbinlog.000012 | 1380 | Delete_rows | 1 | 1420 | table_id: 111 flags: STMT_END_F | 30 | mysqlbinlog.000012 | 1420 | Xid | 1 | 1451 | COMMIT /* xid=24234 */ | 31 +--------------------+------+----------------+-----------+-------------+-----------------------------------------------------------------------+
3> 用mysqlbinlog 工具查看
1 [mysql@mysql mysqlbinlog]$ which mysqlbinlog 2 /mysql/mysql57/bin/mysqlbinlog
所有的内容全部转换
1 mysqlbinlog --base64-output=decode-rows -v mysqlbinlog.000012 > mysqlbinlog.000012.sql
也可以筛选时间
1 mysqlbinlog --no-defaults --database=ecology --base64-output=decode-rows -v --start-datetime='2019-11-19 00:00:00' --stop-datetime='2019-11-19 15:00:00' mysqlbinlog.000012 | more
如下
1 [mysql@mysql mysqlbinlog]$ cat mysqlbinlog.000012.sql 2 /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/; 3 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/; 4 DELIMITER /*!*/; 5 # at 4 6 #191119 3:41:22 server id 1 end_log_pos 123 CRC32 0xece7d88c Start: binlog v 4, server v 5.7.25-log created 191119 3:41:22 7 # Warning: this binlog is either in use or was not closed properly. 8 # at 123 9 #191119 3:41:22 server id 1 end_log_pos 194 CRC32 0x5061dfbc Previous-GTIDs 10 # 6e854266-e13f-11e9-9630-000c29ec17fe:8-40225 11 # at 194 12 #191119 3:42:07 server id 1 end_log_pos 259 CRC32 0xec2ec1b9 GTID last_committed=0sequence_number=1 rbr_only=yes 13 /*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/; 14 SET @@SESSION.GTID_NEXT= '6e854266-e13f-11e9-9630-000c29ec17fe:40226'/*!*/; 15 # at 259 16 #191119 3:42:07 server id 1 end_log_pos 334 CRC32 0x9bc6ec1d Query thread_id=2011 exec_time=0 error_code=0 17 SET TIMESTAMP=1574163727/*!*/; 18 SET @@session.pseudo_thread_id=2011/*!*/; 19 SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/; 20 SET @@session.sql_mode=1436549120/*!*/; 21 SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/; 22 /*!\C utf8 *//*!*/; 23 SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=45/*!*/; 24 SET @@session.lc_time_names=0/*!*/; 25 SET @@session.collation_database=DEFAULT/*!*/; 26 BEGIN 27 /*!*/; 28 # at 334 29 # at 386 30 #191119 3:42:07 server id 1 end_log_pos 437 CRC32 0xf0b1b42a Table_map: `ecology`.`test1` mapped to number 111 31 # at 437 32 #191119 3:42:07 server id 1 end_log_pos 477 CRC32 0x0a785505 Write_rows: table id 111 flags: STMT_END_F 33 ### INSERT INTO `ecology`.`test1` 34 ### SET 35 ### @1=1 36 # at 477 37 #191119 3:42:07 server id 1 end_log_pos 508 CRC32 0x22330a62 Xid = 24229 38 COMMIT/*!*/; 39 # at 508 40 #191119 3:42:11 server id 1 end_log_pos 573 CRC32 0x1a4a0ef6 GTID last_committed=1sequence_number=2 rbr_only=yes 41 /*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/; 42 SET @@SESSION.GTID_NEXT= '6e854266-e13f-11e9-9630-000c29ec17fe:40227'/*!*/; 43 # at 573 44 #191119 3:42:11 server id 1 end_log_pos 648 CRC32 0xaa2c2f1c Query thread_id=2011 exec_time=0 error_code=0 45 SET TIMESTAMP=1574163731/*!*/; 46 BEGIN 47 /*!*/; 48 # at 648 49 # at 700 50 #191119 3:42:11 server id 1 end_log_pos 751 CRC32 0x0c3582e7 Table_map: `ecology`.`test1` mapped to number 111 51 # at 751 52 #191119 3:42:11 server id 1 end_log_pos 791 CRC32 0x7c5d0311 Write_rows: table id 111 flags: STMT_END_F 53 ### INSERT INTO `ecology`.`test1` 54 ### SET 55 ### @1=2 56 # at 791 57 #191119 3:42:11 server id 1 end_log_pos 822 CRC32 0x21aa6cd8 Xid = 24230 58 COMMIT/*!*/; 59 # at 822 60 #191119 3:42:14 server id 1 end_log_pos 887 CRC32 0x28978885 GTID last_committed=2sequence_number=3 rbr_only=yes 61 /*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/; 62 SET @@SESSION.GTID_NEXT= '6e854266-e13f-11e9-9630-000c29ec17fe:40228'/*!*/; 63 # at 887 64 #191119 3:42:14 server id 1 end_log_pos 962 CRC32 0x1eb58956 Query thread_id=2011 exec_time=0 error_code=0 65 SET TIMESTAMP=1574163734/*!*/; 66 BEGIN 67 /*!*/; 68 # at 962 69 # at 1014 70 #191119 3:42:14 server id 1 end_log_pos 1065 CRC32 0x16e28b1c Table_map: `ecology`.`test1` mapped to number 111 71 # at 1065 72 #191119 3:42:14 server id 1 end_log_pos 1105 CRC32 0xe418bd7c Write_rows: table id 111 flags: STMT_END_F 73 ### INSERT INTO `ecology`.`test1` 74 ### SET 75 ### @1=3 76 # at 1105 77 #191119 3:42:14 server id 1 end_log_pos 1136 CRC32 0x26c5a65d Xid = 24231 78 COMMIT/*!*/; 79 # at 1136 80 #191119 3:42:53 server id 1 end_log_pos 1201 CRC32 0xb302f8f8 GTID last_committed=3 sequence_number=4 rbr_only=yes 81 /*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/; 82 SET @@SESSION.GTID_NEXT= '6e854266-e13f-11e9-9630-000c29ec17fe:40229'/*!*/; 83 # at 1201 84 #191119 3:42:53 server id 1 end_log_pos 1276 CRC32 0x068cf9e9 Query thread_id=2011 exec_time=0 error_code=0 85 SET TIMESTAMP=1574163773/*!*/; 86 BEGIN 87 /*!*/; 88 # at 1276 89 # at 1329 90 #191119 3:42:53 server id 1 end_log_pos 1380 CRC32 0xfbcaff53 Table_map: `ecology`.`test1` mapped to number 111 91 # at 1380 92 #191119 3:42:53 server id 1 end_log_pos 1420 CRC32 0x5f3583dd Delete_rows: table id 111 flags: STMT_END_F 93 ### DELETE FROM `ecology`.`test1` 94 ### WHERE 95 ### @1=2 96 # at 1420 97 #191119 3:42:53 server id 1 end_log_pos 1451 CRC32 0x46e9d878 Xid = 24234 98 COMMIT/*!*/; 99 SET @@SESSION.GTID_NEXT= 'AUTOMATIC' /* added by mysqlbinlog */ /*!*/; 100 DELIMITER ; 101 # End of log file 102 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/; 103 /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
