1.1案例環境java
1.創建時間同步環境,在主節點上搭建時間同步服務器。 1)安裝NTP [root@mysql ~]# yum -y install ntp 2)配置NTP [root@mysql ~]# vim /etc/ntp.conf //添加以下兩行 server 127.127.1.0 fudge 127.127.1.0 stratum 8 3)重啓服務並設置爲開機啓動 [root@mysql ~]# systemctl restart ntpd [root@mysql ~]# systemctl enable ntpd
2.在從節點上進行時間同步。mysql
[root@mysql ~]# yum -y install ntpdate [root@mysql ~]# ntpdate 192.168.1.101 //同步主時間服務器
1)安裝mysql數據庫。在master,slave1,slave2上安裝。
編譯安裝mysql
2)優化調整。
3)初始化數據庫。
4)啓動mysql服務linux
[root@mysql ~]# systemctl restart mysqld [root@mysql ~]# msqladmin -u root password 'pwd123' //爲root用戶設置密碼
3.配置mysql master主服務器sql
[root@mysql ~]# vim /etc/my.cnf server_id = 11 //修改 log_bin = master-bin //修改 log-slave-updates = true //增長 重啓mysql服務 [root@mysql ~]# systemctl restart mysqld.service
1)登陸mysql程序,給從服務器以受權。 [root@mysql ~]# mysql -u root -p mysql> grant replication slave on *.* to 'myslave'@'192.168.1%' identified by '123456'; mysql> flush privileges; mysql> show master status; +-------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +-------------------+----------+--------------+------------------+-------------------+ | master-bin.000001 | 409 | | | | +-------------------+----------+--------------+------------------+-------------------+
4.配置從服務器數據庫
[root@mysql ~]# vim /etc/my.cnf server_id = 22 //修改 relay-log=relay-log-bin //增長 relay-log-index=slave-relay-bin.index //增長 重啓mysql服務 [root@mysql ~]# systemctl restart mysqld
1)登陸mysql,配置同步
[root@mysql ~]# mysql -u root -p
mysql> change master to master_host='192.168.1.101',master_user='myslave',master_password='123456',master_log_file='master-bin.000001',master_log_pos=409; vim
2)啓動同步
mysql> start slave; 服務器
3)查看slave狀態,確保如下兩個值爲yes
mysql> show slave status\G;負載均衡
5.驗證主從複製效果tcp
1)在主,從服務器上登陸mysql [root@mysql ~]# mysql -u root -p mysql> show databases;
2)在主服務器上新建數據庫如db_test mysql> create database db_test; Query OK, 1 row affected (0.00 sec)
3)在主,從服務器上分別查看數據庫,顯示數據庫相同,則主從複製成功。 mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | db_test | | mysql | | performance_schema | | test | | tttttt | +--------------------+
1.2搭建mysql讀寫分離ide
1)在主機amoeba上安裝java環境 [root@localhost ~]# mount /dev/cdrom /media/ mount: /dev/sr0 寫保護,將以只讀方式掛載 [root@localhost ~]# cd /media/ [root@localhost media]# ls amoeba-mysql-binary-2.2.0.tar.gz jdk-6u14-linux-x64.bin [root@localhost media]# cp * /usr/src/ [root@localhost media]# cd /usr/src/ [root@localhost src]# chmod +x jdk-6u14-linux-x64.bin [root@localhost src]# ./jdk-6u14-linux-x64.bin [root@localhost src]# mv jdk1.6.0_14/ /usr/local/jdk1.6 [root@localhost src]# vim /etc/profile
2)配置amoeba讀寫分離,兩個slave讀負載均衡 master,slave1,slave2中開放權限amoeba訪問 mysql> grant all on *.* to test@'192.168.1.%' identified by '123.com';
[root@localhost ~]# cd /usr/local/amoeba/ [root@localhost amoeba]# vim conf/amoeba.xml 增長如下配置: export JAVA_HOME=/usr/local/jdk1.6 export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib export PATH=$JAVA_HOME/lib:$JAVA_HOME/jre/bin:$PATH:$HOME/bin export AMOEBA_HOME=/usr/local/amoeba export PATH=$PATH:$AMOEBA_HOME/bin
[root@localhost src]# source /etc/profile [root@localhost src]# java -version java version "1.6.0_14" Java(TM) SE Runtime Environment (build 1.6.0_14-b08) Java HotSpot(TM) 64-Bit Server VM (build 14.0-b16, mixed mode) java環境已配置成功
3)安裝並配置amoeba軟件 [root@localhost ~]# mkdir /usr/local/amoeba [root@localhost media]# tar zxf amoeba-mysql-binary-2.2.0.tar.gz -C /usr/local/amoeba [root@localhost ~]# chmod -R 755 /usr/local/amoeba/ [root@localhost ~]# /usr/local/amoeba/bin/amoeba amoeba start|stop //顯示此內容說明amoeba安裝成功
1.配置amoeba讀寫分離,兩個slave讀寫負載均衡。
master,slave1,slave2中開放權限給amoeba訪問。
mysql> grant all on *.* to test@'192.168.1.%' identified by '123.com'; Query OK, 0 rows affected (0.00 sec
1)編輯amoeba.xml配置文件 [root@localhost ~]# cd /usr/local/amoeba/ [root@localhost amoeba]# vim conf/amoeba.xml
如下修改後的內容爲帶下劃線的部分
如下修改後的內容爲帶下劃線的部分,注意刪除註釋
2)編輯dbservers.xml配置文件 [root@localhost amoeba]# vim conf/dbServers.xml
如下修改後的內容爲帶下劃線的部分
如下修改後的內容爲帶下劃線的部分
3)配置無誤後能夠啓動amoeba軟件,其默認端口爲tcp8066
[root@localhost amoeba]# bin/amoeba start&
2.測試 在Client主機上:
[root@localhost ~]# yum -y install mysql Loaded plugins: fastestmirror, langpacks aaa | 3.6 kB 00:00:00 (1/2): aaa/group_gz | 155 kB 00:00:00 (2/2): aaa/primary_db | 3.0 MB 00:00:00 Determining fastest mirrors 能夠經過代理訪問mysql: [root@localhost ~]# mysql -u amoeba -p123456 -h 192.168.1.110 -P8066 Welcome to the MariaDB monitor. Commands end with ; or \g. Your MySQL connection id is 2089015486 Server version: 5.1.45-mysql-amoeba-proxy-2.2.0 Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MySQL [(none)]>
1)在master上建立一個表,同步到從服務器上,而後關掉各從服務器的slave功能,在插入區別語句。 mysql> use db_test; mysql> create table zang (id int(10),name varchar(10),address varchar(20)); Query OK, 0 rows affected (0.09 sec) 分別在兩臺從服務器上: mysql> stop slave; Query OK, 0 rows affected (0.01 sec) 2)從服務器上同步了表,手動插入其餘內容:
3)測試讀操做
在client主機上第一次查詢的結果以下