Mysql5.6主从复制

搭建（192.168.1.10 -> 192.168.1.20）

1 master 上执行

阻塞 DML
flush tables with read lock;

记录 File 和 Position
show master status;

mysqldump -u root -p --all-databases > /data/dbbak/db.dmp

如果此 master 同时亦为 slave
mysqldump -u root -p --all-databases --dump-slave > /data/dbbak/db.dmp

unlock tables;

scp /data/dbbak/db.dmp mysql@192.168.1.20:/data/dbbak

2 slave 上执行

如果备份产生于 slave
mysqladmin -u root -p shutdown
/usr/local/mysql/bin/mysqld_safe --user=mysql --skip-slave-start &

mysql -u root -p < /data/dbbak/db.dmp

3 master 上执行

[mysqld]
server-id = 110
log-bin = /data/mysql/mysql-bin
binlog_format = MIXED
skip-slave-start = 1
#auto_increment_offset = 1
#auto_increment_increment = 1

create user ‘repl‘@‘192.168.1.20‘ identified by ‘xxxxxxxx‘;
grant replication slave on *.* to ‘repl‘@‘192.168.1.20‘;

4 slave 上执行

[mysqld]
server-id = 120
log-bin = /data/mysql/mysql-bin
binlog_format = MIXED
skip-slave-start = 1
relay-log = rep_relay_log
relay-log-index = rep_relay_log
read_only = 1
#sync_master_info = 0
#sync_relay_log = 0
#sync_relay_log_info = 0
#log-slave-updates = 1
#replicate-rewrite-db = cisdb -> newdb
#replicate-do-db = cisdb
#replicate-ignore-db = cisdb
#replicate-do-table = cisdb.t1
#replicate-ignore-table = cisdb.t1
#replicate-wild-do-table = cisdb.%
#replicate-wild-ignore-table = cisdb.%
#slave-skip-errors = xxxx,xxxx
#relay_log_purge
#relay_log_space_limit
#slave_exec_mode
#slave_compressed_protocol
#slave_parallel_workers

change master to
MASTER_HOST=‘192.168.60.202‘,
MASTER_USER=‘repl‘,
MASTER_PASSWORD=‘1‘,
MASTER_LOG_FILE=‘mysql-bin.000001‘,
MASTER_LOG_POS=120;

start slave;

5 salve 上执行

检查 Slave_IO_Running 和 Slave_SQL_Running 是否为 Yes
检查 Seconds_Behind_Master
show slave status\G;

检查 Slave_SQL_Running 线程的 Time 值（延时，单位为秒）
show processlist\G;

为方便主从切换：
create user ‘repl‘@‘192.168.1.10‘ identified by ‘xxxxxxxx‘;
grant replication slave on *.* to ‘repl‘@‘192.168.1.10‘;

Mysql5.6主从复制

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