my.cnf1. replication용 DB 계정 생성( master/slave 둘다 )
$ create user repl@'192.168.186.%' identified by 'repl';
$ grant replication slave, replication client on *.* to repl@'192.168.186.%' identified by 'repl';
2. master 설정
1) master my.cnf 수정
server-id = 1 # master DB id for replication
....
########################################
# Replication related settings
########################################
replicate-ignore-db = perf_mon
replicate-ignore-db = sys
replicate-ignore-db = moniter
replicate-ignore-db = mysql
2) 먼저 master 의 binlog position 을 확인하고 기록해 둔다.
mysql> show master status \G
*************************** 1. row ***************************
File: mysql_bin.000002
Position: 120
Binlog_Do_DB:
Binlog_Ignore_DB:
Executed_Gtid_Set:
1 row in set (0.00 sec)
3) master shutdown
$ service mysqld stop 또는 /etc/init.d/mysql stop
3. slave 설정
1) slave my.cnf 수정
[mysqld]
server-id = 2 # slave DB id for replication
...
########################################
# Replication related settings
########################################
replicate-ignore-db = perf_mon
replicate-ignore-db = sys
replicate-ignore-db = moniter
replicate-ignore-db = mysql
#replicate-do-db = db_xxx
#
relay_log_purge = OFF
relay-log = /var/log/mysql/relay
#log_slave_update
read-only = 1
report-host = x.x.x.x
report-port = 3306
2) db에 접속해서 slave 초기화
mysql> reset slave all;
3) 복제 설정
※ 기존 운영 중인 MySQL이라면 master에서 데이터를 dump 받아 slave에 넣는 작업이 필요 하다.
> master_user='repl',
> master_password='repl',
> master_log_file='mysql_bin.000002’,
> master_log_pos=120;
※ master_log_file 과 master_log_pos 는 master status의 binlog position 과 같다.
4) 복제 설정 확인
mysql> show slave status \G
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: xxx.xxx.xxx.xxx
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000002
Read_Master_Log_Pos: 755
Relay_Log_File: testvm2-relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File: mysql-bin.000025
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: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 755
Relay_Log_Space: 107
Until_Condition: None
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
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: 0
1 row in set (0.00 sec)
5) 복제 시작
mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status \G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.186.xxx
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000025
Read_Master_Log_Pos: 755
Relay_Log_File: testvm2-relay-bin.000002
Relay_Log_Pos: 253
Relay_Master_Log_File: mysql-bin.000025
Slave_IO_Running: Yes <-------------------------- YES 여야 함
Slave_SQL_Running: Yes <-------------------------- YES 여야 함
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: 755
Relay_Log_Space: 411
Until_Condition: None
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: 0
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: 1
1 row in set (0.00 sec)
