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  • mysql利用binlog日志恢复数据库小实验

    1、my.cnf配置

    log_bin = /MySQL-bin/mysql-bin
    max_binlog_size = 100M

    2、测试

    create database bp;
    use bp
    create table bptest(id int ,name varchar(20));
    show tables;
    insert into bptest values(1,'a');
    insert into bptest values(2,'b');
    insert into bptest values(3,'c');
    select * from bptest;
    insert into bptest values(4,'d');
    insert into bptest values(5,'e');
    delete from bptest where id=1;
    truncate table bptest;
    select * from bptest;

    3、查看mysqlbinlog

    mysqlbinlog /MySQL-bin/mysql-bin.000001

    /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
    /*!40019 SET @@session.max_insert_delayed_threads=0*/;
    /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
    DELIMITER /*!*/;
    # at 4
    #181203  9:44:04 server id 1  end_log_pos 256 CRC32 0xbaf1b3b8  Start: binlog v 4, server v 10.2.19-MariaDB-log created 181203  9:44:04 at startup
    # Warning: this binlog is either in use or was not closed properly.
    ROLLBACK/*!*/;
    BINLOG '
    ZIoEXA8BAAAA/AAAAAABAAABAAQAMTAuMi4xOS1NYXJpYURCLWxvZwAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAABkigRcEzgNAAgAEgAEBAQEEgAA5AAEGggAAAAICAgCAAAACgoKAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    AAAAAAAAAAAEEwQADQgICAoKCgG4s/G6
    '/*!*/;
    # at 256
    #181203  9:44:04 server id 1  end_log_pos 299 CRC32 0x1443c41e  Gtid list [0-1-18]
    # at 299
    #181203  9:44:04 server id 1  end_log_pos 342 CRC32 0x58c2c378  Binlog checkpoint mysql-bin.000001
    # at 342
    #181203  9:44:30 server id 1  end_log_pos 384 CRC32 0xe5c81d38  GTID 0-1-19 ddl
    /*!100101 SET @@session.skip_parallel_replication=0*//*!*/;
    /*!100001 SET @@session.gtid_domain_id=0*//*!*/;
    /*!100001 SET @@session.server_id=1*//*!*/;
    /*!100001 SET @@session.gtid_seq_no=19*//*!*/;
    # at 384
    #181203  9:44:30 server id 1  end_log_pos 467 CRC32 0x1fe94f9e  Query   thread_id=9     exec_time=0     error_code=0
    SET TIMESTAMP=1543801470/*!*/;
    SET @@session.pseudo_thread_id=9/*!*/;
    SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1, @@session.check_constraint_checks=1/*!*/;
    SET @@session.sql_mode=1411383296/*!*/;
    SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
    /*!C utf8 *//*!*/;
    SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=8/*!*/;
    SET @@session.lc_time_names=0/*!*/;
    SET @@session.collation_database=DEFAULT/*!*/;
    create database bp
    /*!*/;
    # at 467
    #181203  9:44:30 server id 1  end_log_pos 509 CRC32 0x8edf2d7a  GTID 0-1-20 ddl
    /*!100001 SET @@session.gtid_seq_no=20*//*!*/;
    # at 509
    #181203  9:44:30 server id 1  end_log_pos 619 CRC32 0x4824ae44  Query   thread_id=9     exec_time=0     error_code=0
    use `bp`/*!*/;
    SET TIMESTAMP=1543801470/*!*/;
    create table bptest(id int ,name varchar(20))
    /*!*/;
    # at 619
    #181203  9:44:30 server id 1  end_log_pos 661 CRC32 0xbbae54a3  GTID 0-1-21 trans
    /*!100001 SET @@session.gtid_seq_no=21*//*!*/;
    BEGIN
    /*!*/;
    # at 661
    #181203  9:44:30 server id 1  end_log_pos 758 CRC32 0xe65b525c  Query   thread_id=9     exec_time=0     error_code=0
    SET TIMESTAMP=1543801470/*!*/;
    insert into bptest values(1,'a')
    /*!*/;
    # at 758
    #181203  9:44:30 server id 1  end_log_pos 789 CRC32 0xa12a734a  Xid = 9
    COMMIT/*!*/;
    # at 789
    #181203  9:44:30 server id 1  end_log_pos 831 CRC32 0x38b47da8  GTID 0-1-22 trans
    /*!100001 SET @@session.gtid_seq_no=22*//*!*/;
    BEGIN
    /*!*/;
    # at 831
    #181203  9:44:30 server id 1  end_log_pos 928 CRC32 0x1c8b22d1  Query   thread_id=9     exec_time=0     error_code=0
    SET TIMESTAMP=1543801470/*!*/;
    insert into bptest values(2,'b')
    /*!*/;
    # at 928
    #181203  9:44:30 server id 1  end_log_pos 959 CRC32 0xb3853908  Xid = 10
    COMMIT/*!*/;
    # at 959
    #181203  9:44:30 server id 1  end_log_pos 1001 CRC32 0xca9d1c72         GTID 0-1-23 trans
    /*!100001 SET @@session.gtid_seq_no=23*//*!*/;
    BEGIN
    /*!*/;
    # at 1001
    #181203  9:44:30 server id 1  end_log_pos 1098 CRC32 0xb98e03d9         Query  thread_id=9      exec_time=0     error_code=0
    SET TIMESTAMP=1543801470/*!*/;
    insert into bptest values(3,'c')
    /*!*/;
    # at 1098
    #181203  9:44:30 server id 1  end_log_pos 1129 CRC32 0x5ee65007         Xid = 11
    COMMIT/*!*/;
    # at 1129
    #181203  9:44:30 server id 1  end_log_pos 1171 CRC32 0x5763fa6a         GTID 0-1-24 trans
    /*!100001 SET @@session.gtid_seq_no=24*//*!*/;
    BEGIN
    /*!*/;
    # at 1171
    #181203  9:44:30 server id 1  end_log_pos 1268 CRC32 0xeb740489         Query  thread_id=9      exec_time=0     error_code=0
    SET TIMESTAMP=1543801470/*!*/;
    insert into bptest values(4,'d')
    /*!*/;
    # at 1268
    #181203  9:44:30 server id 1  end_log_pos 1299 CRC32 0x7d47e9db         Xid = 13
    COMMIT/*!*/;
    # at 1299
    #181203  9:44:30 server id 1  end_log_pos 1341 CRC32 0x5b709f6b         GTID 0-1-25 trans
    /*!100001 SET @@session.gtid_seq_no=25*//*!*/;
    BEGIN
    /*!*/;
    # at 1341
    #181203  9:44:30 server id 1  end_log_pos 1438 CRC32 0xe55328ae         Query  thread_id=9      exec_time=0     error_code=0
    SET TIMESTAMP=1543801470/*!*/;
    insert into bptest values(5,'e')
    /*!*/;
    # at 1438
    #181203  9:44:30 server id 1  end_log_pos 1469 CRC32 0x76442c82         Xid = 14
    COMMIT/*!*/;
    # at 1469
    #181203  9:44:30 server id 1  end_log_pos 1511 CRC32 0x0a5b210c         GTID 0-1-26 trans
    /*!100001 SET @@session.gtid_seq_no=26*//*!*/;
    BEGIN
    /*!*/;
    # at 1511
    #181203  9:44:30 server id 1  end_log_pos 1605 CRC32 0x40a65c3c         Query  thread_id=9      exec_time=0     error_code=0
    SET TIMESTAMP=1543801470/*!*/;
    delete from bptest where id=1
    /*!*/;
    # at 1605
    #181203  9:44:30 server id 1  end_log_pos 1636 CRC32 0x0d0a9bed         Xid = 15
    COMMIT/*!*/;
    # at 1636
    #181203  9:44:30 server id 1  end_log_pos 1678 CRC32 0x9aa1c8db         GTID 0-1-27 ddl
    /*!100001 SET @@session.gtid_seq_no=27*//*!*/;
    # at 1678
    #181203  9:44:30 server id 1  end_log_pos 1764 CRC32 0x4fbf3c67         Query  thread_id=9      exec_time=0     error_code=0
    SET TIMESTAMP=1543801470/*!*/;
    truncate table bptest
    /*!*/;
    DELIMITER ;
    # End of log file
    ROLLBACK /* added by mysqlbinlog */;
    /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
    /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;

    mysqlbinlog --start-position=661 --stop-position=1511 /MySQL-bin/mysql-bin.000001|mysql -uroot -p

    恢复完成

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  • 原文地址:https://www.cnblogs.com/xue0123/p/10056924.html
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