linux mysql 单机主从_MariaDB单机双实例主从复制
MariaDB其實(shí)和mysql一樣，非有啥不一樣那就是名字不一樣~.~!
開始～上篇實(shí)驗(yàn)是MariaDB的單機(jī)多實(shí)例安裝
雙實(shí)例端口3307主庫(kù)，3308從庫(kù)
3307主實(shí)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從實(shí)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
開始主從配置
步驟1、連接到主庫(kù)上授權(quán)一個(gè)REPLICATION SLAVE 帳號(hào)，并且刷新授權(quán)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、連接到從庫(kù)上指定主庫(kù)，啟動(dòng)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(bào)錯(cuò)了，如果你跟我一樣報(bào)錯(cuò)就執(zhí)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(xiàn)在連接上了 master_log_file='master3307-bin.000005',master_log_pos=632 表示從主服務(wù)器那個(gè)二進(jìn)制日志文件開始復(fù)制因?yàn)檫@是復(fù)制授權(quán)信息，所以沒必要復(fù)制，在主服務(wù)器上可以查看show master status; 查看內(nèi)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 # 從服務(wù)器有沒有正常工作主要是看這個(gè)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(dòng)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 #表示從服務(wù)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(cè)試！
在主的上面創(chuàng)建一個(gè)庫(kù)看從的是否可以復(fù)制到
主上創(chuàng)建
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)
可以復(fù)制！這樣就實(shí)現(xiàn)單機(jī)實(shí)例復(fù)制，我做的3個(gè)實(shí)例，3306端口給默認(rèn)的用，3307，3308端口做主從復(fù)制。
總結(jié)
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