恢复误删除表黑科技之relay log大法（续）
Preface
I've stuck twice in my previous experiments in backing up dropped tables.I am still not sure that why I got failure yesterday.Therefore,I decide to do that again with the same steps on another environment.Let's see the details.
Procedure
1. All the operations on master zlm1.
//Check data at first.
zlm@192.168.56.100: [sysbench]>show tables;
+--------------------+
| Tables_in_sysbench |
+--------------------+
| sbtest1 |
| sbtest2 |
| sbtest3 |
| sbtest4 |
| sbtest5 |
+--------------------+
rows in set (0.00 sec) zlm@192.168.56.100: [sysbench]>select count(*) from sbtest5;
+----------+
| count(*) |
+----------+
| |
+----------+
row in set (0.00 sec) zlm@192.168.56.100: [sysbench]>show binary logs;
+------------------+-----------+
| Log_name | File_size |
+------------------+-----------+
| mysql-bin. | |
| mysql-bin. | |
| mysql-bin. | |
| mysql-bin. | |
| mysql-bin. | |
| mysql-bin. | |
| mysql-bin. | |
| mysql-bin. | |
| mysql-bin. | |
| mysql-bin. | |
| mysql-bin. | |
| mysql-bin. | |
| mysql-bin. | |
+------------------+-----------+
rows in set (0.01 sec) zlm@192.168.56.100: [sysbench]>show master status;
+------------------+----------+--------------+------------------+-------------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------------------------------------+
| mysql-bin. | | | | 2a4b3562-2ab6-11e8-be7a-080027de0e0e:- |
+------------------+----------+--------------+------------------+-------------------------------------------------+
row in set (0.00 sec) //Generate a Xtrabackup then send it to the slave zlm2.
[root@zlm1 :: /data/backup]
#innobackupex --defaults-file=/data/mysql/mysql3306/my3306.cnf --user=root --password=Passw0rd /data/backup [root@zlm1 :: /data/backup]
#scp -r --31_16--/ zlm2:/data/backup/ //Continue to do some operations(DML).
zlm@192.168.56.100: [sysbench]>delete from sbtest5 limit ;
Query OK, rows affected (0.19 sec) zlm@192.168.56.100: [sysbench]>delete from sbtest5 limit ;
Query OK, rows affected (0.04 sec) //Drop the table.
zlm@192.168.56.100: [sysbench]>drop table sbtest5;
Query OK, rows affected (0.04 sec) zlm@192.168.56.100: [sysbench]>flush logs;
Query OK, rows affected (0.05 sec) zlm@192.168.56.100: [sysbench]>show master status;
+------------------+----------+--------------+------------------+-------------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------------------------------------+
| mysql-bin. | | | | 2a4b3562-2ab6-11e8-be7a-080027de0e0e:- |
+------------------+----------+--------------+------------------+-------------------------------------------------+
row in set (0.00 sec) //Shutdown the master.
zlm@192.168.56.100: [sysbench]>exit
Bye [root@zlm1 :: ~]
#mysqladmin shutdown //Send the binlogs which contain the operations above to slave zlm2 either.
[root@zlm1 :: ~]
#cd /data/mysql/mysql3306/logs [root@zlm1 :: /data/mysql/mysql3306/logs]
#ls -l
total
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.
-rw-r----- mysql mysql Jul : mysql-bin.index [root@zlm1 :: /data/mysql/mysql3306/logs]
#scp mysql-bin.{,} zlm2:/data/backup
mysql-bin. % 933KB .6KB/s :
mysql-bin. % .2KB/s :
2. Operations on slave zlm2.
//Prepare to restore the backup of Xtrabackup.
[root@zlm2 :: /data/backup]
#innobackupex --defaults-file=/data/mysql/mysql3306/my3306.cnf -uroot -pPassw0rd --apply-log /data/backup/--31_16--/ [root@zlm2 :: /data/mysql/mysql3306/data]
#ls -l
total
-rw-r----- mysql mysql Jul : auto.cnf
-rw-r----- mysql mysql Jul : error.log
-rw-r----- mysql mysql Jul : ib_buffer_pool
-rw-r----- mysql mysql Jul : ibdata1
-rw-r----- mysql mysql Jul : ib_logfile0
-rw-r----- mysql mysql Jul : ib_logfile1
-rw-r----- mysql mysql Jul : ib_logfile2
-rw-r----- mysql mysql Jul : master.info
drwxr-x--- mysql mysql Jul : mrbs
drwxr-x--- mysql mysql Jul : mysql
drwxr-x--- mysql mysql Jul : performance_schema
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r----- mysql mysql Jul : relay-bin.index
-rw-r----- mysql mysql Jul : relay-log.info
-rw-r----- mysql mysql Jul : slow.log
drwxr-x--- mysql mysql Jul : sys
drwxr-x--- mysql mysql Jul : sysbench
-rw-r----- mysql mysql Jul : xtrabackup_binlog_pos_innodb
-rw-r----- mysql mysql Jul : xtrabackup_info
-rw-r----- mysql mysql Jul : xtrabackup_master_key_id [root@zlm2 :: /data/mysql/mysql3306/data]
#ps aux|grep mysqld
root 0.0 0.0 pts/ R+ : : grep --color=auto mysqld [root@zlm2 :: /data/mysql/mysql3306/data]
#rm -rf * //Copy back the datafiles.
[root@zlm2 :: /data/backup]
#innobackupex --defaults-file=/data/mysql/mysql3306/my3306.cnf -uroot -pPassw0rd --copy-back /data/backup/--31_16--/ [root@zlm2 :: /data/mysql/mysql3306/data]
#ls -l
total
-rw-r----- root root Jul : ib_buffer_pool
-rw-r----- root root Jul : ibdata1
-rw-r----- root root Jul : ib_logfile0
-rw-r----- root root Jul : ib_logfile1
-rw-r----- root root Jul : ib_logfile2
-rw-r----- root root Jul : ibtmp1
drwxr-x--- root root Jul : mrbs
drwxr-x--- root root Jul : mysql
drwxr-x--- root root Jul : performance_schema
drwxr-x--- root root Jul : sys
drwxr-x--- root root Jul : sysbench
-rw-r----- root root Jul : xtrabackup_binlog_pos_innodb
-rw-r----- root root Jul : xtrabackup_info
-rw-r----- root root Jul : xtrabackup_master_key_id [root@zlm2 :: /data/mysql/mysql3306/data]
#sh /root/mysqld.sh [root@zlm2 :: /data/mysql/mysql3306/data]
#mysql
ERROR (HY000): Can't connect to MySQL server on '192.168.56.101' (111) [root@zlm2 :: /data/mysql/mysql3306/data]
#chown -R mysql.mysql * [root@zlm2 :: /data/mysql/mysql3306/data]
#sh /root/mysqld.sh [root@zlm2 :: /data/mysql/mysql3306/data]
#mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is
Server version: 5.7.-log MySQL Community Server (GPL) Copyright (c) , , 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. zlm@192.168.56.101: [(none)]>select count(*) from sysbench.sbtest5;
+----------+
| count(*) |
+----------+
| |
+----------+
row in set (0.03 sec) //Continue to restore the incremental data with sql_thread.
[root@zlm2 :: /data/backup]
#ls -l
total
drwxr-x--- root root Jul : --31_16--
-rw-r----- root root Jul : mysql-bin.
-rw-r----- root root Jul : mysql-bin. [root@zlm2 :: /data/backup]
#for i in $(ls mysql-bin.*)
> do
> ext=$(echo $i | cut -d'.' -f2);
> cp $i relay-bin.$ext;
> done [root@zlm2 :: /data/backup]
#ls -l
total
drwxr-x--- root root Jul : --31_16--
-rw-r----- root root Jul : mysql-bin.
-rw-r----- root root Jul : mysql-bin.
-rw-r----- root root Jul : relay-bin.
-rw-r----- root root Jul : relay-bin. [root@zlm2 :: /data/backup]
#ls ./relay-bin.* > relay-bin.index [root@zlm2 :: /data/backup]
#ls -l
total
drwxr-x--- root root Jul : --31_16--
-rw-r----- root root Jul : mysql-bin.
-rw-r----- root root Jul : mysql-bin.
-rw-r----- root root Jul : relay-bin.
-rw-r----- root root Jul : relay-bin.
-rw-r--r-- root root Jul : relay-bin.index [root@zlm2 :: /data/backup]
#cat relay-bin.index
./relay-bin.
./relay-bin. [root@zlm2 :: /data/backup]
#chown mysql.mysql relay* [root@zlm2 :: /data/backup]
#ls -l
total
drwxr-x--- root root Jul : --31_16--
-rw-r----- root root Jul : mysql-bin.
-rw-r----- root root Jul : mysql-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r--r-- mysql mysql Jul : relay-bin.index [root@zlm2 :: /data/backup]
#cp relay* /data/mysql/mysql3306/data [root@zlm2 :: /data/backup]
#cd /data/mysql/mysql3306/data [root@zlm2 :: /data/mysql/mysql3306/data]
#ls -l
total
-rw-r----- mysql mysql Jul : auto.cnf
-rw-r----- mysql mysql Jul : error.log
-rw-r----- mysql mysql Jul : ib_buffer_pool
-rw-r----- mysql mysql Jul : ibdata1
-rw-r----- mysql mysql Jul : ib_logfile0
-rw-r----- mysql mysql Jul : ib_logfile1
-rw-r----- mysql mysql Jul : ib_logfile2
-rw-r----- mysql mysql Jul : ibtmp1
-rw-r----- mysql mysql Jul : innodb_status.
-rw-r----- mysql mysql Jul : innodb_status.
drwxr-x--- mysql mysql Jul : mrbs
drwxr-x--- mysql mysql Jul : mysql
-rw-r----- mysql mysql Jul : mysql.pid
drwxr-x--- mysql mysql Jul : performance_schema
-rw-r----- root root Jul : relay-bin.
-rw-r----- root root Jul : relay-bin.
-rw-r--r-- root root Jul : relay-bin.index
-rw-r----- mysql mysql Jul : slow.log
drwxr-x--- mysql mysql Jul : sys
drwxr-x--- mysql mysql Jul : sysbench
-rw-r----- mysql mysql Jul : xtrabackup_binlog_pos_innodb
-rw-r----- mysql mysql Jul : xtrabackup_info
-rw-r----- mysql mysql Jul : xtrabackup_master_key_id [root@zlm2 :: /data/mysql/mysql3306/data]
#chown mysql.mysql relay* [root@zlm2 :: /data/mysql/mysql3306/data]
#ls -l
total
-rw-r----- mysql mysql Jul : auto.cnf
-rw-r----- mysql mysql Jul : error.log
-rw-r----- mysql mysql Jul : ib_buffer_pool
-rw-r----- mysql mysql Jul : ibdata1
-rw-r----- mysql mysql Jul : ib_logfile0
-rw-r----- mysql mysql Jul : ib_logfile1
-rw-r----- mysql mysql Jul : ib_logfile2
-rw-r----- mysql mysql Jul : ibtmp1
-rw-r----- mysql mysql Jul : innodb_status.
-rw-r----- mysql mysql Jul : innodb_status.
drwxr-x--- mysql mysql Jul : mrbs
drwxr-x--- mysql mysql Jul : mysql
-rw-r----- mysql mysql Jul : mysql.pid
drwxr-x--- mysql mysql Jul : performance_schema
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r--r-- mysql mysql Jul : relay-bin.index
-rw-r----- mysql mysql Jul : slow.log
drwxr-x--- mysql mysql Jul : sys
drwxr-x--- mysql mysql Jul : sysbench
-rw-r----- mysql mysql Jul : xtrabackup_binlog_pos_innodb
-rw-r----- mysql mysql Jul : xtrabackup_info
-rw-r----- mysql mysql Jul : xtrabackup_master_key_id zlm@192.168.56.101: [(none)]>show master status;
+------------------+----------+--------------+------------------+-------------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------------------------------------+
| mysql-bin. | | | | 2a4b3562-2ab6-11e8-be7a-080027de0e0e:- |
+------------------+----------+--------------+------------------+-------------------------------------------------+
row in set (0.00 sec) zlm@192.168.56.101: [(none)]>change master to relay_log_file='relay-bin.000103',relay_log_pos=,master_host='xxx';
Query OK, rows affected (0.01 sec) zlm@192.168.56.101: [(none)]>show slave status\G
*************************** . row ***************************
Slave_IO_State:
Master_Host: xxx
Master_User:
Master_Port:
Connect_Retry:
Master_Log_File:
Read_Master_Log_Pos:
Relay_Log_File: relay-bin.
Relay_Log_Pos:
Relay_Master_Log_File:
Slave_IO_Running: No
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:
Last_Error:
Skip_Counter:
Exec_Master_Log_Pos: //No data here yet.
Relay_Log_Space:
Until_Condition: None
Until_Log_File:
Until_Log_Pos:
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
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno:
Last_IO_Error:
Last_SQL_Errno:
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id:
Master_UUID:
Master_Info_File: /data/mysql/mysql3306/data/master.info
SQL_Delay:
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count:
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: //No data here.
Executed_Gtid_Set: 2a4b3562-2ab6-11e8-be7a-080027de0e0e:-
Auto_Position:
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
row in set (0.00 sec) [root@zlm2 :: /data/backup]
#ls -l
total
drwxr-x--- root root Jul : --31_16--
-rw-r----- root root Jul : mysql-bin.
-rw-r----- root root Jul : mysql-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r--r-- mysql mysql Jul : relay-bin.index //Find out the end position to set util clause.
[root@zlm2 :: /data/backup]
#mysqlbinlog --base64-output=decode-rows relay-bin. > .log [root@zlm2 :: /data/backup]
#tail - .log
# :: server id end_log_pos CRC32 0xe3e63622 Delete_rows: table id flags: STMT_END_F
# at
# :: server id end_log_pos CRC32 0x84cf5136 Xid =
COMMIT/*!*/;
# at //This position is which I need to set until to.
# :: server id end_log_pos CRC32 0xef03ef84 GTID last_committed= sequence_number= rbr_only=no
SET @@SESSION.GTID_NEXT= '2a4b3562-2ab6-11e8-be7a-080027de0e0e:12715699'/*!*/;
# at
# :: server id end_log_pos CRC32 0x0309b10f Query thread_id= exec_time= error_code=
use `sysbench`/*!*/;
SET TIMESTAMP=/*!*/;
DROP TABLE `sbtest5` /* generated by server */
/*!*/;
# at
# :: server id end_log_pos CRC32 0xc1ca182a Rotate to mysql-bin. pos:
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*/; zlm@192.168.56.101: [(none)]>start slave sql_thread until relay_log_file='relay-bin.000103',relay_log_pos=;
Query OK, rows affected (0.00 sec) zlm@192.168.56.101: [(none)]>show slave status\G
*************************** . row ***************************
Slave_IO_State:
Master_Host: xxx
Master_User:
Master_Port:
Connect_Retry:
Master_Log_File:
Read_Master_Log_Pos:
Relay_Log_File: relay-bin.
Relay_Log_Pos:
Relay_Master_Log_File:
Slave_IO_Running: No
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:
Last_Error:
Skip_Counter:
Exec_Master_Log_Pos: //This is the terminal relay log position I set just now.
Relay_Log_Space:
Until_Condition: Relay
Until_Log_File: relay-bin.
Until_Log_Pos:
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
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno:
Last_IO_Error:
Last_SQL_Errno:
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id:
Master_UUID:
Master_Info_File: /data/mysql/mysql3306/data/master.info
SQL_Delay:
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count:
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set: 2a4b3562-2ab6-11e8-be7a-080027de0e0e:-
Auto_Position:
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
row in set (0.00 sec) zlm@192.168.56.101: [(none)]>select count(*) from sysbench.sbtest5;
+----------+
| count(*) |
+----------+
| |
+----------+
row in set (0.00 sec)
3. The supplemented experiment.
//Shudown the instance.
[root@zlm2 :: /data/mysql/mysql3306/data]
#ps aux|grep mysqld
mysql 0.0 20.0 pts/ Sl : : mysqld --defaults-file=/data/mysql/mysql3306/my3306.cnf
root 0.0 0.0 pts/ R+ : : grep --color=auto mysqld [root@zlm2 :: /data/mysql/mysql3306/data]
#mysqladmin shutdown [root@zlm2 :: /data/mysql/mysql3306/data] //Copy back the data one more time(no need to executed with option "--apply-log" first this time).
[root@zlm2 :: /data/backup]
#innobackupex --defaults-file=/data/mysql/mysql3306/my3306.cnf -uroot -pPassw0rd --copy-back /data/backup/--31_16--/ //Copy the relay logs to datadir directory again.
[root@zlm2 :: /data/backup]
#ls -l
total
-rw-r--r-- root root Jul : .log
drwxr-x--- root root Jul : --31_16--
-rw-r----- root root Jul : mysql-bin.
-rw-r----- root root Jul : mysql-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r----- mysql mysql Jul : relay-bin.
-rw-r--r-- mysql mysql Jul : relay-bin.index [root@zlm2 :: /data/backup]
#cp relay* /data/mysql/mysql3306/data [root@zlm2 :: /data/mysql/mysql3306/data]
#ls -l
total
-rw-r----- root root Jul : ib_buffer_pool
-rw-r----- root root Jul : ibdata1
-rw-r----- root root Jul : ib_logfile0
-rw-r----- root root Jul : ib_logfile1
-rw-r----- root root Jul : ib_logfile2
-rw-r----- root root Jul : ibtmp1
drwxr-x--- root root Jul : mrbs
drwxr-x--- root root Jul : mysql
drwxr-x--- root root Jul : performance_schema
-rw-r----- root root Jul : relay-bin.
-rw-r----- root root Jul : relay-bin.
-rw-r--r-- root root Jul : relay-bin.index
drwxr-x--- root root Jul : sys
drwxr-x--- root root Jul : sysbench
-rw-r----- root root Jul : xtrabackup_binlog_pos_innodb
-rw-r----- root root Jul : xtrabackup_info
-rw-r----- root root Jul : xtrabackup_master_key_id [root@zlm2 :: /data/mysql/mysql3306/data]
#chown -R mysql.mysql * [root@zlm2 :: /data/mysql/mysql3306/data]
#sh /root/mysqld.sh [root@zlm2 :: /data/mysql/mysql3306/data]
#mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is
Server version: 5.7.-log MySQL Community Server (GPL) Copyright (c) , , 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. zlm@192.168.56.101: [(none)]>select count(*) from sysbench.sbtest5;
+----------+
| count(*) |
+----------+
| |
+----------+
row in set (0.04 sec) zlm@192.168.56.101: [(none)]>show master status;
+------------------+----------+--------------+------------------+-------------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------------------------------------+
| mysql-bin. | | | | 2a4b3562-2ab6-11e8-be7a-080027de0e0e:- |
+------------------+----------+--------------+------------------+-------------------------------------------------+
row in set (0.00 sec) zlm@192.168.56.101: [(none)]>reset master;
Query OK, rows affected (0.03 sec) zlm@192.168.56.101: [(none)]>show master status;
+------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin. | | | | |
+------------------+----------+--------------+------------------+-------------------+
row in set (0.00 sec) zlm@192.168.56.101: [(none)]>show slave status\G
Empty set (0.00 sec) zlm@192.168.56.101: [(none)]>set @@global.gtid_purged='2a4b3562-2ab6-11e8-be7a-080027de0e0e:1-12715696';
Query OK, rows affected (0.00 sec) zlm@192.168.56.101: [(none)]>show master status;
+------------------+----------+--------------+------------------+-------------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------------------------------------+
| mysql-bin. | | | | 2a4b3562-2ab6-11e8-be7a-080027de0e0e:- |
+------------------+----------+--------------+------------------+-------------------------------------------------+
row in set (0.00 sec) zlm@192.168.56.101: [(none)]>change master to relay_log_file='relay-bin.000103',relay_log_pos=,master_host='xxx';
Query OK, rows affected (0.01 sec) zlm@192.168.56.101: [(none)]>show slave status\G
*************************** . row ***************************
Slave_IO_State:
Master_Host: xxx
Master_User:
Master_Port:
Connect_Retry:
Master_Log_File:
Read_Master_Log_Pos:
Relay_Log_File: relay-bin.
Relay_Log_Pos:
Relay_Master_Log_File:
Slave_IO_Running: No
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:
Last_Error:
Skip_Counter:
Exec_Master_Log_Pos:
Relay_Log_Space:
Until_Condition: None
Until_Log_File:
Until_Log_Pos:
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
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno:
Last_IO_Error:
Last_SQL_Errno:
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id:
Master_UUID:
Master_Info_File: /data/mysql/mysql3306/data/master.info
SQL_Delay:
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count:
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set: 2a4b3562-2ab6-11e8-be7a-080027de0e0e:-
Auto_Position:
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
row in set (0.00 sec) zlm@192.168.56.101: [(none)]>start slave sql_thread until sql_before_gtids='2a4b3562-2ab6-11e8-be7a-080027de0e0e:12715699';
Query OK, rows affected (0.51 sec) zlm@192.168.56.101: [(none)]>show slave status\G
*************************** . row ***************************
Slave_IO_State:
Master_Host: xxx
Master_User:
Master_Port:
Connect_Retry:
Master_Log_File:
Read_Master_Log_Pos:
Relay_Log_File: relay-bin.
Relay_Log_Pos:
Relay_Master_Log_File:
Slave_IO_Running: No
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:
Last_Error:
Skip_Counter:
Exec_Master_Log_Pos:
Relay_Log_Space:
Until_Condition: SQL_BEFORE_GTIDS //This time we use this option to start slave sql_thread.
Until_Log_File:
Until_Log_Pos:
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
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno:
Last_IO_Error:
Last_SQL_Errno:
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id:
Master_UUID:
Master_Info_File: /data/mysql/mysql3306/data/master.info
SQL_Delay:
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count:
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set: 2a4b3562-2ab6-11e8-be7a-080027de0e0e:-
Auto_Position:
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
row in set (0.00 sec) zlm@192.168.56.101: [(none)]>select count(*) from sysbench.sbtest5;
+----------+
| count(*) |
+----------+
| |
+----------+
row in set (0.00 sec)
Ultimately,the incremental data comes back again.The experiment was finished successfully.
恢复误删除表黑科技之relay log大法（续）的更多相关文章
- 恢复误删除表黑科技之relay log大法
Preface In my previous blogs,I've demonstrated several mothods of how to rescue a dropped ta ...
- Oracle恢复误删除表操作语句
一.表和数据恢复 1.从回收站里查询被删除的表 select object_name,original_name,partition_name,type,ts_name,createtime,drop ...
- windows黑科技-记录dns log
昨天看到袁哥微博,看到了这篇,今天测试了一下,记录下来: The DNS Client service does not log by default. However, if a file name ...
- Oracle误删除表空间的恢复
对于误删除表空间的恢复,本文通过基于数据库的时间点恢复和基于表空间的时间点恢复分别加以讨论 一 通过基于数据库的时间点恢复被误删除的表空间 1 需要注意的事项 a 基于数据库的时间点恢复将会回退整个数 ...
- rman恢复误删除的一张表(不完全恢复)
恢复误删除的一张表可以使用很多方法,如日志挖掘.闪回等,rman恢复(不完全恢复)肯定不是最好的,也不建议用, 现在我们只是演示一下这种恢复. 1 RMAN备份数据库 2创建测试表 3查看此时的SCN ...
- ORACLE恢复误删除的对象(表、存储过程等)
1.恢复存储过程 原理就是利用了oracle里所有的存储过程的源代码都是存在dba_source里,而drop某个存储过程的时候,oracle这里肯定要去dba_source里把相关的源代码给dele ...
- Oracle误删除表数据后的恢复具体解释
Oracle误删除表数据后的恢复具体解释 測试环境: SYSTEM:IBM AIX 5L Oracle Version:10gR2 1. undo_re ...
- 利用flashBack恢复误删除(delete)的表数据
Flashback query(闪回查询)原理 Oracle根据undo信息,利用undo数据,类似一致性读取方法,可以把表置于一个删除前的时间点(或SCN),从而将数据找回. Flashback q ...
- mysql relay log参数汇总
前言:MySQL进行主主复制或主从复制的时候会在配置文件制定的目录下面产生相应的relay log,本文档总结这些相关参数的定义及解释. 1.什么是relay log The relay log, l ...
随机推荐
- 学习MyBatis之简单入门HelloWorld
转:https://blog.csdn.net/gaomb_1990/article/details/78299784 一.准备 Eclipse:Luna Service Release 1 (4.4 ...
- ELKB是什么？
ELKB是四个开源软件的缩写,分别表示:Elasticsearch , Logstash, Kibana ,Beats. Elasticsearch是个开源分布式搜索引擎,提供搜集.分析.存储数据三大 ...
- TCP心跳的意义
摘自:https://blog.csdn.net/bjrxyz/article/details/71076442 TCP新手误区–心跳的意义 背景 最近面试了很多的学生,发现很多TCP的新手对于TCP ...
- Hibernate 异常总结
异常一 异常一 异常描述: Sax解析异常:cvc-复杂的类型,发现了以元素maping开头的无效内容,应该是以 ‘{“http://www.hibernate.org/xsd/orm/cfg“:pr ...
- Android学习<2>
Android自学资料汇总 资料参考地址: http://blog.csdn.net/guolin_blog/article/details/26365913 http://drakeet.me/an ...
- SpringMVC使用ModelAndView的相对路径和绝对路径的问题
例如:abc/a/a.jsp,想要跳转到根目录的b.jsp 使用 ModelAndView 跳转, 若引用:org.springframework.web.portlet.ModelAndView 这 ...
- mysql 命令 小结
CREATE DATABASE IF NOT EXISTS yourdbname DEFAULT CHARSET utf8 COLLATE utf8_general_ci;创建中文数据库show gl ...
- MySQL运行一段时间后自动停止问题的排查
在进入主题前,一定要先吐槽下自己,前段时间购买了一台阿里云服务器,最开始打算只是自己个人用的,就买了一台配置很寒碜的服务器: CPU: 1核 内存: 1 GB 操作系统: CentOS 7.2 64位 ...
- 【c学习-6】
void myFunction4(){ //根据用户字段和密码字段判定是否允许登录 //定义原密码和用户字段 char user[10]={"liupeng"};//设置用户名字段 ...
- Spark Streaming 交互 Kafka的两种方式
一.Spark Streaming连Kafka(重点) 方式一:Receiver方式连:走磁盘 使用High Level API(高阶API)实现Offset自动管理,灵活性差,处理数据时,如果某一时 ...