配置heartbeat接管drbd服务
配置heartbeat接管drbd服务（延续之前heartbeat及drbd博文内容）1、两端确认都建立好 /data目录2、关闭drbd服务,关闭heartbeat服务，自启动全部关闭3、两端配置haresourcesdata-1-1 IPaddr::192.168.0.191/24/eth0 drbddisk::data Filesystem::/dev/drbd0::/data::ext3启动顺序1、依次启动主备端drbd2、drbd置主3、依次启动主备端heartbeat,启动后主端自动挂载drbd0到/data
启动完成后状态如下
[root@data-1-1 /]# cat /proc/drbd
version: 8.4.9-1 (api:1/proto:86-101)
GIT-hash: 9976da086367a2476503ef7f6b13d4567327a280 build by mockbuild@Build64R6, 2016-12-13 18:38:15
0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r-----
ns:340 nr:16 dw:356 dr:3646 al:2 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
[root@data-1-1 /]# ip addr | grep 191
inet 192.168.0.191/24 brd 192.168.0.255 scope global secondary eth0
[root@data-1-1 ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 5916420 4207616 1401604 76% /
tmpfs 502384 0 502384 0% /dev/shm
/dev/sda1 194241 36262 147739 20% /boot
/dev/drbd0 1011928 47696 912828 5% /data
[root@data-1-2 ~]# cat /proc/drbd
version: 8.4.9-1 (api:1/proto:86-101)
GIT-hash: 9976da086367a2476503ef7f6b13d4567327a280 build by mockbuild@Build64R6, 2016-12-13 18:38:15
0: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r-----
ns:16 nr:340 dw:356 dr:1364 al:1 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
安装mysql
#install cmake tar -zxvf cmake-2.8.0.tar.gz cd cmake-2.8.0 ./configure gmake && gmake install cd ..#install ncurses yum install ncurses-devel -y#install mysql5.5.49 useradd mysql -s /bin/nologin -M mkdir /data chown -R mysql.mysql /data tar xf mysql-5.5.49.tar.gz cd mysql-5.5.49 cmake \-DCMAKE_INSTALL_PREFIX=/usr/local/mysql5.5.49 \-DMYSQL_DATADIR=/data \-DMYSQL_UNIX_ADDR=/usr/local/mysql5.5.49/tmp/mysqld.sock \-DDEFAULT_CHARSET=utf8 \-DDEFAULT_COLLATION=utf8_general_ci \-DEXTRA_CHARSETS=all \-DENABLED_LOCAL_INFILE=1 \-DWITH_INNOBASE_STORAGE_ENGINE=1 \-DWITHOUT_FEDERATED_STORAGE_ENGINE=1 \-DWITH_BLACKHOLE_STORAGE_ENGINE=1 \-DWITHOUT_EXAMPLE_STORAGE_ENGINE=1 \-DWITHOUT_PARTITION_STORAGE_ENGINE=1 \-DWITH_FAST_MUTEXES=1 \-DWITH_ZLIB=bundled \-DENABLED_LOCAL_INFILE=1 \-DWITH_READLINE=1 \-DWITH_EMBEDDED_SERVER=1 \-DWITH_DEBUG=0; make && make install #init mysql ln -s /usr/local/mysql5.5.49 /usr/local/mysql /bin/cp /usr/local/mysql/support-files/my-small.cnf /etc/my.cnf echo 'export PATH=/usr/local/mysql/bin:$PATH' >>/etc/profile source /etc/profile chown -R mysql.mysql /usr/local/mysql chmod -R 1777 /tmp cd /usr/local/mysql/scripts =======>备端忽略此步 ./mysql_install_db --basedir=/usr/local/mysql --datadir=/data/ --user=mysql =======>备端忽略此步 cp /usr/local/mysql5.5.49/support-files/mysql.server /etc/init.d/mysqld chmod +x /etc/init.d/mysqld /etc/init.d/mysqld start =======>备端忽略此步 netstat -lntup | grep 3306 =======>备端忽略此步
[root@data-1-1 scripts]# mysql 确认mysql安装ok
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.5.49 Source distribution
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> create database drbd; #用来确认备端
Query OK, 1 row affected (0.06 sec)
配置heartbeat接管mysql
两端配置haresources [root@data-1-1 ~]# cat /etc/ha.d/haresources data-1-1 IPaddr::192.168.0.191/24/eth0 drbddisk::data Filesystem::/dev/drbd0::/data::ext3 mysqld [root@data-1-2 ~]# cat /etc/ha.d/haresources data-1-1 IPaddr::192.168.0.191/24/eth0 drbddisk::data Filesystem::/dev/drbd0::/data::ext3 mysqld 说明
data-1-1 主机名
IPaddr::192.168.0.191/24/eth0 heartbeat配置ip的脚本，等于/etc/ha.d/resource.d/IPaddr 192.168.0.191/24/eth0 start/stop
drbddisk::data 启动drbd定义的data资源，等于/etc/ha.d/resource.d/drbddisk data stop/start
Filesystem::/dev/drbd0::/data::ext3 将drbd0设备挂载到/data/目录，原理同上
mysqld mysql服务起停脚本，等于/etc/init.d/mysqld start/stop
进行测试
[root@data-1-1 ~]# /etc/init.d/heartbeat stop #主端停止heartbeat，看备端情况
Stopping High-Availability services: Done.
[root@data-1-2 ~]# df #确认/data已挂载
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 5916420 4243564 1365656 76% /
tmpfs 502384 0 502384 0% /dev/shm
/dev/sda1 194241 36263 147738 20% /boot
/dev/drbd0 1011928 47692 912832 5% /data
[root@data-1-2 ~]# ip addr | grep 191 #确认vip漂移
inet 192.168.0.191/24 brd 192.168.0.255 scope global secondary eth0
[root@data-1-2 ~]# mysql -u root -e "show databases;" | grep drbd #确认数据库及数据
drbd
[root@data-1-2 ~]# cat /proc/drbd #接管drbd，成为primary
version: 8.4.9-1 (api:1/proto:86-101)
GIT-hash: 9976da086367a2476503ef7f6b13d4567327a280 build by mockbuild@Build64R6, 2016-12-13 18:38:15
0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r-----
ns:612 nr:42460 dw:43072 dr:17959 al:8 bm:0 lo:2 pe:0 ua:0 ap:2 ep:1 wo:f oos:0
[root@data-1-1 ~]# /etc/init.d/heartbeat start 检测同上，回切正常
管理要点
1、heartbeat drbd mysql都设置为非开机自启动 2、主备依次启动drbd，并置主 3、主备依次启动heartbeat，heartbeat会启动vip，挂载drbd设备，启动mysql
