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centos7maiadb主從復(fù)制搭建-創(chuàng)新互聯(lián)
需求：
由于要使用saltstack，部署環(huán)境，先手動(dòng)搭建了下主從環(huán)境，發(fā)現(xiàn)原來(lái)的word資料都找不到了，所以這次趕緊的記錄到博客當(dāng)中！！
環(huán)境：
兩臺(tái)設(shè)備，ip地址分別為：
node1：192.168.56.11
node2：192.168.56.12
系統(tǒng)：Centos7
軟件包：使用系統(tǒng)自帶的yum 來(lái)安裝的mariadb
==========================================================================================
安裝：
分別在兩臺(tái)設(shè)備上安裝數(shù)據(jù)庫(kù)mariadb，使用yum來(lái)安裝的，可以更換成過(guò)內(nèi)的yum源來(lái)操作
命令：yum install -y mariadb mariadb-server
配置：
先配置node1上的master配置
[root@salt-node1 ~]# vim /etc/my.cnf [mysqld] innodb_file_per_table=NO log-bin=/var/lib/mysql/master-bin #這里如果不指定路徑默認(rèn)是在datadir下面生成 binlog_format=mixed server-id = 11#這個(gè)主節(jié)點(diǎn)一定要是唯一的 datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # Settings user and group are ignored when systemd is used. # If you need to run mysqld under a different user or group, # customize your systemd unit file for mariadb according to the # instructions in http://fedoraproject.org/wiki/Systemd [mysqld_safe] log-error=/var/log/mariadb/mariadb.log pid-file=/var/run/mariadb/mariadb.pid # # include all files from the config directory # !includedir /etc/my.cnf.d重啟node1上的mysql服務(wù)
systemctl restart mariadb.service登錄mysql：
mysql -uroot -p 我這里測(cè)試就沒(méi)有設(shè)置密碼創(chuàng)建帳號(hào)并賦予replication的權(quán)限。從庫(kù),主從庫(kù)復(fù)制數(shù)據(jù)時(shí)需要使用這個(gè)帳號(hào)進(jìn)行
grant replication slave on *.* to 'root'@'192.168.56.%' identified by '123456';加鎖：
實(shí)際工作中，需要禁止數(shù)據(jù)庫(kù)的寫(xiě)入，要給數(shù)據(jù)庫(kù)上鎖
FLUSH TABLES WITH READ LOCK;記錄主庫(kù)的binlog日志文件和位置信息（這個(gè)信息，要在從庫(kù)配置的時(shí)候用到）
MariaDB [(none)]> show master status; +-------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +-------------------+----------+--------------+------------------+ | master-bin.000001 | 398 | | | +-------------------+----------+--------------+------------------+ 1 row in set (0.00 sec)備份主庫(kù)的數(shù)據(jù)：
mysqldump -uroot -p --all-databases > /tmp/db.sql==========================================================================================
下面開(kāi)始配置從庫(kù)：
導(dǎo)入數(shù)據(jù)到從庫(kù)當(dāng)中
mysql -uroot -p修改配置文件my.cnf：
[root@salt-node2 ~]# cat /etc/my.cnf [mysqld] innodb_file_per_table=NO #log-bin=mysql-bin binlog_format=mixed server-id = 12 relay-log = /var/lib/mysql/relay-bin #log_slave_updates = 1 read_only = on datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # Settings user and group are ignored when systemd is used. # If you need to run mysqld under a different user or group, # customize your systemd unit file for mariadb according to the # instructions in http://fedoraproject.org/wiki/Systemd [mysqld_safe] log-error=/var/log/mariadb/mariadb.log pid-file=/var/run/mariadb/mariadb.pid # # include all files from the config directory # !includedir /etc/my.cnf.d重啟服務(wù)：
systemctl restart mariadb.service登錄mysql
mysql -uroot -p設(shè)置主從服務(wù)配置
CHANGE MASTER TO MASTER_HOST='192.168.56.11',MASTER_USER='root', MASTER_PASSWORD='123456', MASTER_LOG_FILE='master-bin.000001', MASTER_LOG_POS= 398;開(kāi)啟主從服務(wù)：
start slave;查看從庫(kù)狀態(tài)：
MariaDB [(none)]> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.56.11 Master_User: root Master_Port: 3306 Connect_Retry: 60 Master_Log_File: master-bin.000001 Read_Master_Log_Pos: 485 Relay_Log_File: relay-bin.000002 Relay_Log_Pos: 617 Relay_Master_Log_File: master-bin.000001 Slave_IO_Running: Yes 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: 485 Relay_Log_Space: 905 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: 11 1 row in set (0.00 sec) ERROR: No query specified Slave_IO_Running: Yes #這里必須為yes，如果不是，需要排查故障 Slave_SQL_Running: Yes #這里必須為yes，如果不是，需要排查故障主從驗(yàn)證，
#主庫(kù)創(chuàng)建數(shù)據(jù)庫(kù) MariaDB [(none)]> create database jiayou ; Query OK, 1 row affected (0.00 sec) #從庫(kù)查看是否同步過(guò)來(lái)這個(gè)數(shù)據(jù)庫(kù) MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | gg | | jiayou | | kk | | mysql | | performance_schema | | salt | | test | +--------------------+ 8 rows in set (0.00 sec)有時(shí)候會(huì)有一些故障問(wèn)題，可以參考下面這個(gè)博客，自己懶的寫(xiě)了
http://blog.csdn.net/mingliangniwo/article/details/54606894?locationNum=8&fps=1
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