MYSQL-基于GTID进行时间点恢复

基于mysqlgtid 进行时间点恢复
要求：恢复到tybdata deposit_activity 表10月7日04:59:59

1：选择10月6日的完全备份恢复到另外一个库,过程略.
2：找到10月7日4点到5点的binlog文件，解析gtid位置：

-rw-r-----. 1 mysql mysql 1073742964 Oct  7 01:00 mysql_bin.002564
-rw-r-----. 1 mysql mysql 1073742134 Oct  7 02:17 mysql_bin.002565
-rw-r-----. 1 mysql mysql 1073742368 Oct  7 03:55 mysql_bin.002566
-rw-r-----. 1 mysql mysql 1073742307 Oct  7 05:43 mysql_bin.002567    ---->解析该binlog
-rw-r-----. 1 mysql mysql 1073743162 Oct  7 08:15 mysql_bin.002568
-rw-r-----. 1 mysql mysql 1073743188 Oct  7 09:33 mysql_bin.002569
-rw-r-----. 1 mysql mysql 1073742941 Oct  7 10:53 mysql_bin.002570

 

sudo mysqlbinlog  -vvv --base64-output=DECODE-ROWS mysql_bin.002567  > 1.txt
grep -n -C 10 "SET @@SESSION.GTID_NEXT" 1.txt > 2.txt

  vim 2.txt

/191007 5:00:00

 

16784205 65054598-#191007  4:59:59 server id 111  end_log_pos 771918266 CRC32 0xf9d13b67         GTID    last_committed=762918   sequence_number=762919  rbr_only=yes
16784206 65054599-/*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/;
16784207 65054600:SET @@SESSION.GTID_NEXT= '92d337cc-32c8-11e8-969b-6805ca408e49:3289185391'/*!*/;
16784208 65054601-# at 771918266
16784209 65054602-#191007  4:59:59 server id 111  end_log_pos 771918329 CRC32 0xaed539cd         Query   thread_id=1087824590    exec_time=0     error_code=0
16784210 65054603-SET TIMESTAMP=1570395599/*!*/;
16784211 65054604-BEGIN
16784212 65054605-/*!*/;
16784213 65054606-# at 771918329
16784214 65054607-#191007  4:59:59 server id 111  end_log_pos 771918444 CRC32 0x8cc64b48         Rows_query
16784215 65054608-# UPDATE `member_api` SET `money` =  '0.00'  WHERE `api_id` = '32' AND `member_id` = '554111'
16784216 65054609-# at 771918444
16784217 65054610-#191007  4:59:59 server id 111  end_log_pos 771918519 CRC32 0x1eecffff         Table_map: `tybdata`.`member_api` mapped to number 1174
16784218 --
16784219 65054630-###   @6=0.00 /* DECIMAL(16,2) meta=4098 nullable=0 is_null=0 */
16784220 65054631-###   @7='' /* VARSTRING(1020) meta=1020 nullable=1 is_null=0 */
16784221 65054632-###   @8=1539515523 /* TIMESTAMP(0) meta=0 nullable=1 is_null=0 */
16784222 65054633-###   @9=1550546492 /* TIMESTAMP(0) meta=0 nullable=1 is_null=0 */
16784223 65054634-# at 771918677
16784224 65054635-#191007  4:59:59 server id 111  end_log_pos 771918708 CRC32 0x021658d7         Xid = 10586330904
16784225 65054636-COMMIT/*!*/;
16784226 65054637-# at 771918708
16784227 65054638-#191007  5:00:00 server id 111  end_log_pos 771918773 CRC32 0x23474a26         GTID    last_committed=762919   sequence_number=762920  rbr_only=yes
16784228 65054639-/*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/;
16784229 65054640:SET @@SESSION.GTID_NEXT= '92d337cc-32c8-11e8-969b-6805ca408e49:3289185392'/*!*/;

 

3:解读 SQL_BEFORE_GTIDS ，SQL_after_GTIDS

START SLAVE SQL_THREAD UNTIL SQL_BEFORE_GTIDS = 3E11FA47-71CA-11E1-9E33-C80AA9429562:11-56导致从属 SQL 线程处理来自 master 的 master 的所有 transactions，
直到遇到序列号为 11 的 transaction;它然后停止而不处理此 transaction。换句话说，处理所有 transactions 直到并包括序列号为 10 的 transaction。
另一方面，执行START SLAVE SQL_THREAD UNTIL SQL_AFTER_GTIDS = 3E11FA47-71CA-11E1-9E33-C80AA9429562:11-56会导致从 SQL 线程获取 master 中刚才提到的所有 transactions，
包括序列 numbers 11 到 56 的所有 transactions，然后停止而不处理任何额外的 transactions;也就是说，序列号为 56 的 transaction 将是从属 SQL 线程获取的最后一个 transaction。

4：开始进行时间点恢复，

CHANGE REPLICATION FILTER Replicate_Do_Table = (tybdata.deposit_activity)  ;
slave_skip_errors                            = ALL    ---跳过一些故障事务
start slave UNTIL  SQL_BEFORE_GTIDS ='92d337cc-32c8-11e8-969b-6805ca408e49:3289185392';

 

5：利用slave 前滚

root@localhost[(none)]> show slave status \G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.30.1
                  Master_User: backup
                  Master_Port: 3306
                Connect_Retry: 1000
              Master_Log_File: mysql_bin.002639
          Read_Master_Log_Pos: 123866921
               Relay_Log_File: relay-log.000080
                Relay_Log_Pos: 771918921
        Relay_Master_Log_File: mysql_bin.002567
             Slave_IO_Running: Yes
            Slave_SQL_Running: No
              Replicate_Do_DB: 
          Replicate_Ignore_DB: 
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: 
                   Last_Errno: 0
                   Last_Error: 
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 771918708
              Relay_Log_Space: 77434499764
              Until_Condition: SQL_BEFORE_GTIDS              ——————>追到需要的时间点gtid
               Until_Log_File: 
                Until_Log_Pos: 0
           Master_SSL_Allowed: No
           Master_SSL_CA_File: 
           Master_SSL_CA_Path: 
              Master_SSL_Cert: 
            Master_SSL_Cipher: 
               Master_SSL_Key: 
        Seconds_Behind_Master: NULL                          ---->显示为NULL
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error: 
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 143306
                  Master_UUID: 25d5fdd0-a92b-11e8-b580-e04f439bb65b
             Master_Info_File: mysql.slave_master_info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: 
           Master_Retry_Count: 86400
                  Master_Bind: 
      Last_IO_Error_Timestamp: 
     Last_SQL_Error_Timestamp: 
               Master_SSL_Crl: 
           Master_SSL_Crlpath: 
           Retrieved_Gtid_Set: 92d337cc-32c8-11e8-969b-6805ca408e49:3265269471-3358679623
            Executed_Gtid_Set: 92d337cc-32c8-11e8-969b-6805ca408e49:1-3289185391
                Auto_Position: 1
         Replicate_Rewrite_DB: 
                 Channel_Name: 
           Master_TLS_Version: 
1 row in set (0.00 sec)

 

6：验证：

 

root@localhost[tybdata]> select max(created_at),min(created_at) from deposit_activity;
+---------------------+---------------------+
| max(created_at) | min(created_at) |
+---------------------+---------------------+
| 2019-10-07 04:59:17 | 2018-01-25 16:40:20 |
+---------------------+---------------------+
1 row in set (0.12 sec)