MariaDB单机双实例主从复制
MariaDB其实和MySQL一样，非有啥不一样那就是名字不一样。
双实例端口3307主库，3308从库
3307主实例的mysqld配置
[mysqld2]
port=3307
socket=/tmp/mysql3307.sock
pid-file=/tmp/mysql3307.pid
max_allowed_packet=1M
net_buffer_length=2k
table_open_cache=4
sort_buffer_size=64k
thread_stack=128k
basedir=/usr/local/mysql
datadir=/data/mydata2
server-id=244
log-bin = master3307-bin
log-bin-index = master3307-bin.index
thread_concurrency=4
innodb_file_per_table = 1
#mysql_pwd='teleframe'
3308从实例的mysqld配置
[mysqld3]
port=3308
socket=/tmp/mysql3308.sock
pid-file=/tmp/mysql3308.pid
max_allowed_packet=1M
net_buffer_length=2k
table_open_cache=4
sort_buffer_size=64k
thread_stack=128k
basedir=/usr/local/mysql
datadir=/data/mydata3
innodb_file_per_table = 1
server-id=245
log-bin=mysql3308-bin
relay-log = relay-log
relay-log-index = relay-log-index
thread_concurrency=4
read-only = on
开始主从配置
步骤1、连接到主库上授权一个REPLICATION SLAVE 帐号，并且刷新授权表
2、连接到从库上指定主库，启动slave
[root@e3 ~]# mysql -uroot -p'teleframe' -h127.0.0.1 -P3308
Welcome to the MariaDB monitor.? Commands end with ; or \g.
Your MariaDB connection id is 3
Server version: 10.0.15-MariaDB-log Source distribution
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Copyright (c) 2000, 2014, Oracle, SkySQL Ab and others.
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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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MariaDB [(none)]> change master to master_host='192.168.0.244',master_user='repl',master_password='repl',master_port=3307,master_log_file='master3307-bin.000005',master_log_pos=632;
ERROR 1201 (HY000): Could not initialize master info structure for ''; more error messages can be found in the MariaDB error log #我这报错了，如果你跟我一样报错就执行下面的命令
MariaDB [(none)]> reset slave;
Query OK, 0 rows affected (0.00 sec)
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MariaDB [(none)]> change master to master_host='192.168.0.244',master_user='repl',master_password='repl',master_port=3307,;
Query OK, 0 rows affected (0.22 sec) #好了现在连接上了? ? ? master_log_file='master3307-bin.000005',master_log_pos=632? 表示从主服务器那个二进制日志文件开始复制因为这是复制授权信息，所以没必要复制，在主服务器上可以查看show master status; 查看内容show binglog events in 'master-bin.000001';
MariaDB [(none)]> show slave status\G
*************************** 1. row ***************************
? ? ? ? ? ? ? Slave_IO_State:
? ? ? ? ? ? ? ? ? Master_Host: 192.168.0.244
? ? ? ? ? ? ? ? ? Master_User: repl
? ? ? ? ? ? ? ? ? Master_Port: 3307
? ? ? ? ? ? ? ? Connect_Retry: 60
? ? ? ? ? ? ? Master_Log_File: master3307-bin.000005
? ? ? ? ? Read_Master_Log_Pos: 632
? ? ? ? ? ? ? Relay_Log_File: relay-log.000002
? ? ? ? ? ? ? ? Relay_Log_Pos: 4
? ? ? ? Relay_Master_Log_File: master3307-bin.000005
? ? ? ? ? ? Slave_IO_Running: No? #? 从服务器有没有正常工作主要是看这个值是否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: 632
? ? ? ? ? ? ? Relay_Log_Space: 248
? ? ? ? ? ? ? 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:
? ? ? ?