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MySQL中binlog参数:binlog_rows_query_log_events

时间:2021-07-01 10:21:17 帮助过:24人阅读

 

可以看到,它是一个动态的,全局,会话型的变量,即可以通过SQL模式进行关闭开启。

在未开启状态中的使用

[root@localhost][boss]> flush logs;
Query OK, 0 rows affected (0.90 sec)

[root@localhost][boss]> flush logs;
Query OK, 0 rows affected (0.18 sec)

[root@gzx-master-01 logs]# ll
total 8977656
-rw-r----- 1 mysql mysql      79405 Apr 24 08:42 error.log
-rw-r----- 1 mysql mysql        217 Mar 10 10:42 mysql_bin.000013
-rw-r----- 1 mysql mysql  658363086 Apr 24 08:43 mysql_bin.000027
-rw-r----- 1 mysql mysql        241 Apr 24 08:43 mysql_bin.000028
-rw-r----- 1 mysql mysql        194 Apr 24 08:43 mysql_bin.000029
-rw-r----- 1 mysql mysql 194 Apr 24 08:53 mysql_bin.000030

-rw-r----- 1 mysql mysql 132 Apr 24 08:43 mysql_bin.index

-rw-r----- 1 mysql mysql 8534643198 Apr 24 08:43 slow.log  

目前最新的binlog切换到30的文件中,做对应的DML

[root@localhost][boss]> select * from t;
+------+
| id   |
+------+
|    1 |
|    1 |
|    1 |
|    1 |
|    1 |
|    2 |
|    2 |
|    2 |
|    3 |
|    3 |
|    7 |
+------+
11 rows in set (0.00 sec)

[root@localhost][boss]> update t set id = 8 where id=7;
Query OK, 1 row affected (0.07 sec)
Rows matched: 1  Changed: 1  Warnings: 0

[root@localhost][boss]> select * from t;
+------+
| id   |
+------+
|    1 |
|    1 |
|    1 |
|    1 |
|    1 |
|    2 |
|    2 |
|    2 |
|    3 |
|    3 |
|    8 |
+------+
11 rows in set (0.00 sec) 

查看binlog

[root@gzx-master-01 logs]# mysqlbinlog --no-defaults -v -v --base64-output=DECODE-ROWS mysql_bin.000030 
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#170424  8:58:35 server id 37306  end_log_pos 123 CRC32 0x48e80ee3     Start: binlog v 4, server v 5.7.17-log created 170424  8:58:35
# Warning: this binlog is either in use or was not closed properly.
# at 123
#170424  8:58:35 server id 37306  end_log_pos 194 CRC32 0xaf41def6     Previous-GTIDs
# a0c06ec7-fef0-11e6-9f85-525400a7d662:1-812
# at 194
#170424  8:58:52 server id 37306  end_log_pos 259 CRC32 0xac26b3b1     GTID    last_committed=sequence_number=1
SET @@SESSION.GTID_NEXT= a0c06ec7-fef0-11e6-9f85-525400a7d662:813/*!*/;
# at 259
#170424  8:58:52 server id 37306  end_log_pos 331 CRC32 0xb56db594     Query    thread_id=34   exec_time=0    error_code=0
SET TIMESTAMP=1492995532/*!*/;
SET @@session.pseudo_thread_id=34/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
SET @@session.sql_mode=1436549120/*!*/;
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=33/*!*/;
SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
# at 331
#170424  8:58:52 server id 37306  end_log_pos 385 CRC32 0x88acf1be     Rows_query

# at 429
#170424  8:58:52 server id 37306  end_log_pos 475 CRC32 0xf2505403     Update_rows: table id 118 flags: STMT_END_F
### UPDATE `boss`.`t`
### WHERE
###   @1=7 /* INT meta=0 nullable=1 is_null=0 */
### SET
###   @1=8 /* INT meta=0 nullable=1 is_null=0 */
# at 475
#170424  8:58:52 server id 37306  end_log_pos 506 CRC32 0xefebd387     Xid = 2444
COMMIT/*!*/;
SET @@SESSION.GTID_NEXT= AUTOMATIC /* added by mysqlbinlog */ /*!*/;
DELIMITER ;
# End of log file
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;

 

这里只会详细记录对应变更行的每一条信息,那么如果我们开启

[root@localhost][(none)]> set global binlog_rows_query_log_events=on;

 

再次执行大致的SQL,查询日志发现

[root@localhost][boss]> set global binlog_rows_query_log_events=on;
Query OK, 0 rows affected (0.00 sec)

[root@localhost][boss]> flush logs;
Query OK, 0 rows affected (0.41 sec)

[root@localhost][boss]> update t set id = 9 where id=8;
Query OK, 1 row affected (0.06 sec)
Rows matched: 1  Changed: 1  Warnings: 0
[root@gzx-master-01 logs]# mysqlbinlog --no-defaults -v -v --base64-output=DECODE-ROWS mysql_bin.000031 
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#170424  9:03:47 server id 37306  end_log_pos 123 CRC32 0xa04cc14a     Start: binlog v 4, server v 5.7.17-log created 170424  9:03:47
# Warning: this binlog is either in use or was not closed properly.
# at 123
#170424  9:03:47 server id 37306  end_log_pos 194 CRC32 0xc3c3b085     Previous-GTIDs
# a0c06ec7-fef0-11e6-9f85-525400a7d662:1-813
# at 194
#170424  9:03:55 server id 37306  end_log_pos 259 CRC32 0xbf9d2c93     GTID    last_committed=sequence_number=1
SET @@SESSION.GTID_NEXT= a0c06ec7-fef0-11e6-9f85-525400a7d662:814/*!*/;
# at 259
#170424  9:03:55 server id 37306  end_log_pos 331 CRC32 0xeddbf07c     Query    thread_id=34   exec_time=0    error_code=0
SET TIMESTAMP=1492995835/*!*/;
SET @@session.pseudo_thread_id=34/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
SET @@session.sql_mode=1436549120/*!*/;
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=33/*!*/;
SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
# at 331
#170424  9:03:55 server id 37306  end_log_pos 385 CRC32 0x912f4086     Rows_query
# update t set id = 9 where id=8
# at 385
#170424  9:03:55 server id 37306  end_log_pos 429 CRC32 0x16eec7d7     Table_map: `boss`.`t` mapped to number 118
# at 429
#170424  9:03:55 server id 37306  end_log_pos 475 CRC32 0x920862af     Update_rows: table id 118 flags: STMT_END_F
### UPDATE `boss`.`t`
### WHERE
###   @1=8 /* INT meta=0 nullable=1 is_null=0 */
### SET
###   @1=9 /* INT meta=0 nullable=1 is_null=0 */
# at 475
#170424  9:03:55 server id 37306  end_log_pos 506 CRC32 0xa37b82e5     Xid = 2447
COMMIT/*!*/;
SET @@SESSION.GTID_NEXT= AUTOMATIC /* added by mysqlbinlog */ /*!*/;
DELIMITER ;
# End of log file
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;

 

看下划线的地方,可以比较清楚的知道,对应的SQL是什么。

 

MySQL中binlog参数:binlog_rows_query_log_events

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