MariaDB單機雙執行個體主從複製

MariaDB單機雙執行個體主從複製

MariaDB單機雙執行個體主從複製

MariaDB其實和MySQL一樣，非有啥不一樣那就是名字不一樣。

開始～上篇實驗是MariaDB的單機多執行個體安裝 

雙執行個體連接埠3307主庫，3308從庫

3307主執行個體的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從執行個體的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

開始主從配置

步驟1、串連到主庫上授權一個REPLICATION SLAVE 帳號，並且重新整理授權表

[root@e3 mysql]# mysql -uroot -h127.0.0.1 -P3307 -p
Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 8
Server version: 10.0.15-MariaDB-log Source distribution
 
Copyright (c) 2000, 2014, Oracle, SkySQL Ab and others.
 
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
 
MariaDB [(none)]> show databases;
+--------------------+
| Database          |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test              |
| test1              |
+--------------------+
5 rows in set (0.00 sec)
 
MariaDB [(none)]> grant replication slave on *.* to 'repl'@'192.168.0.%' identified by 'repl';
Query OK, 0 rows affected (0.00 sec)
 
MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)
 
MariaDB [(none)]> show master status;
+-----------------------+----------+--------------+------------------+
| File                  | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+-----------------------+----------+--------------+------------------+
| master3307-bin.000005 |      632 |              |                  |
+-----------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
 
MariaDB [(none)]>

2、串連到從庫上指定主庫，啟動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
 
Copyright (c) 2000, 2014, Oracle, SkySQL Ab and others.
 
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
 
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 #我這報錯了，如果你跟我一樣報錯就執行下面的命令
MariaDB [(none)]> reset slave;
Query OK, 0 rows affected (0.00 sec)
 
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) #好了現在串連上了      master_log_file='master3307-bin.000005',master_log_pos=632  表示從主伺服器那個二進位記錄檔開始複製因為這是複製授權資訊，所以沒必要複製，在主伺服器上可以查看show master status; 查看內容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  #  從伺服器有沒有正常工作主要是看這個值是否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:
            Master_Server_Id: 0
              Master_SSL_Crl:
          Master_SSL_Crlpath:
                  Using_Gtid: No
                  Gtid_IO_Pos:
1 row in set (0.00 sec)
MariaDB [(none)]> start slave;  #好啟動slave
Query OK, 0 rows affected (0.00 sec)
 
MariaDB [(none)]> show slave status\G
*************************** 1. row ***************************
              Slave_IO_State: Waiting for master to send event
                  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.000003
                Relay_Log_Pos: 540
        Relay_Master_Log_File: master3307-bin.000005
            Slave_IO_Running: Yes  #表示從伺服器正常工作了
            Slave_SQL_Running: Yes  #
              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: 831
              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: 244
              Master_SSL_Crl:
          Master_SSL_Crlpath:
                  Using_Gtid: No
                  Gtid_IO_Pos:

來測試！

在主的上面建立一個庫看從的是否可以複製到

主上建立

MariaDB [(none)]> create database kcwtest;
Query OK, 1 row affected (0.00 sec)
 
MariaDB [(none)]> show databases;
+--------------------+
| Database          |
+--------------------+
| information_schema |
| kcwtest            |
| mysql              |
| performance_schema |
| test              |
| test1              |
+--------------------+
6 rows in set (0.00 sec)

從上查看

MariaDB [(none)]> show databases;
+--------------------+
| Database          |
+--------------------+
| information_schema |
| kcwtest            |
| mysql              |
| performance_schema |
| test              |
+--------------------+
5 rows in set (0.00 sec)

可以複製！這樣就實現單機執行個體複製，我做的3個執行個體，3306連接埠給預設的用，3307，3308連接埠做主從複製。

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