高可用heartbate+DRBD
实验环境:server3:172.25.29.3server4:172.25.29.4
server6:172.25.29.6
下载 heartbeat-3.0.4-2.el6.x86_64.rpm
heartbeat-devel-3.0.4-2.el6.x86_64.rpm
heartbeat-libs-3.0.4-2.el6.x86_64.rpm
ldirectord-3.9.5-3.1.x86_64.rpm
# yum install -y *
# scp * root@172.25.29.4:/root/
#cd /etc/ha.d/
# rpm -q heartbeat -d
# cp /usr/share/doc/heartbeat-3.0.4/{ha.cf,authkeys,haresources} .
#vim ha.cf
29 logfile /var/log/ha-log
48 keepalive 2
56 deadtime 30
61 warntime 10
71 initdead 60
76 udpport 723
91 bcast eth0 # Linux
211 node server3.example.com 主服务器
212 node server4.example.com 备服务器
220 ping 172.25.29.250
253 respawn hacluster /usr/lib64/heartbeat/ipfail
259 apiauth ipfail gid=haclient uid=hacluster
# vim haresources
151 server3.example.com IPaddr::172.25.29.100/24/eth0 httpd
# vim authkeys
23 auth 1
24 1 crc
#chmod 600 authkeys
#scp ha.cf haresources authkeys 172.25.29.4:/etc/ha.d/
# /etc/init.d/heartbeat start
# yum install -y *
# /etc/init.d/heartbeat start
真机#rpm -qn | grep 172.25.29.100（查看访问地址）
# /etc/init.d/network stop （当断开网路时集群会把server3踢出去重启）
#######访问172.25.29.100
@@@@@@@@@@@@@DRBD@@@@@@@@@@@@@@@@@@@@@@
一.编译安装drbd安装包
1.在server3 server4 上分别添加一个4G的虚拟磁盘。
server3：
下载一个drbd-8.4.3.tar.gz 安装包
# ls
drbd-8.4.3.tar.gz
# tar zxf drbd-8.4.3.tar.gz
# ls
drbd-8.4.3.tar.gz
drbd-8.4.3
# cd drbd-8.4.3
#vim test.spec（以spec结尾的文件为编译安装包文件）
# ./configure --enable-spec --with-km
#yum install -y gcc
# ./configure --enable-spec --with-km
#yum install -y flex
# ./configure --enable-spec --with-km
#yum install -y rpm-build
# ./configure --enable-spec --with-km
#rpmbuild -bb drbd.spec
#cp ~/drbd-8.4.3.tar.gz ~/rpmbuild/SOURCES/
#rpmbuild -bb drbd.spec
error： Failed build dependencies:
#yum install -y kernel-devel
#rpmbuild -bb drbd.spec
# cd /root/rpmbuild/RPMS/x86_64/
# ls
drbd-8.4.3-2.el6.x86_64.rpm
drbd-bash-completion-8.4.3-2.el6.x86_64.rpm
drbd-debuginfo-8.4.3-2.el6.x86_64.rpm
drbd-heartbeat-8.4.3-2.el6.x86_64.rpm
drbd-km-2.6.32_431.el6.x86_64-8.4.3-2.el6.x86_64.rpm
drbd-km-debuginfo-8.4.3-2.el6.x86_64.rpm
drbd-pacemaker-8.4.3-2.el6.x86_64.rpm
drbd-udev-8.4.3-2.el6.x86_64.rpm
drbd-utils-8.4.3-2.el6.x86_64.rpm
drbd-xen-8.4.3-2.el6.x86_64.rpm
#rpm -ivh *
#scp * root@172.25.29.4:/root/
server4:
#ls
drbd-8.4.3-2.el6.x86_64.rpm
drbd-bash-completion-8.4.3-2.el6.x86_64.rpm
drbd-debuginfo-8.4.3-2.el6.x86_64.rpm
drbd-heartbeat-8.4.3-2.el6.x86_64.rpm
drbd-km-2.6.32_431.el6.x86_64-8.4.3-2.el6.x86_64.rpm
drbd-km-debuginfo-8.4.3-2.el6.x86_64.rpm
drbd-pacemaker-8.4.3-2.el6.x86_64.rpm
drbd-udev-8.4.3-2.el6.x86_64.rpm
drbd-utils-8.4.3-2.el6.x86_64.rpm
drbd-xen-8.4.3-2.el6.x86_64.rpm
#rpm -ivh *
二.DRBD配置
# cd /etc/drbd.d
# vim dbdata.res
resource dbdata {
meta-disk internal;
device /dev/drbd1;
syncer {
verify-alg sha1;
}
on server3.example.com {
disk /dev/vda;
address 172.25.29.3:7789;
}
on server4.example.com {
disk /dev/vda;
address 172.25.29.4:7789;
}
}
# scp dbdata.res 172.25.29.4:/etc/drbd.d/
# drbdadm create-md dbdata
# /etc/init.d/drbd start
Starting DRBD resources: [
create res: dbdata
prepare disk: dbdata
adjust disk: dbdata
adjust net: dbdata
]
.
# drbdadm create-md dbdata
# /etc/init.d/drbd start
Starting DRBD resources: [
create res: dbdata
prepare disk: dbdata
adjust disk: dbdata
adjust net: dbdata
]
.
# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@server3.example.com, 2016-09-23 09:29:11
1: cs:Connected ro:Secondary/Secondary ds:Inconsistent/Inconsistent C r-----
ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:4194140
# drbdadm primary dbdata --force
# watch cat /proc/drbd
# cat /proc/drbd （server3和server同步）
# mkfs.ext4 /dev/drbd1
# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@server3.example.com, 2016-09-23 09:29:11
1: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r-----
ns:4326500 nr:0 dw:132360 dr:4195168 al:34 bm:256 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
# mount /dev/drbd1 /mnt/
# cd /mnt
# ls
lost+found
# cp /etc/* .
# cd
# umount /mnt/
# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@server3.example.com, 2016-09-23 09:29:11
1: cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate C r-----
ns:4326500 nr:0 dw:132360 dr:4195168 al:34 bm:256 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
# drbdadm secondary dbdata
# cat /proc/dr
drbd driver/
# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@server3.example.com, 2016-09-23 09:29:11
1: cs:Connected ro:Secondary/Secondary ds:UpToDate/UpToDate C r-----
ns:4328648 nr:0 dw:134508 dr:4195529 al:34 bm:256 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@server3.example.com, 2016-09-23 09:29:11
1: cs:Connected ro:Secondary/Secondary ds:UpToDate/UpToDate C r-----
ns:4328648 nr:0 dw:134508 dr:4195529 al:34 bm:256 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
# drbdadm primary dbdata
# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@server3.example.com, 2016-09-23 09:29:11
1: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r-----
ns:4326500 nr:0 dw:132360 dr:4195168 al:34 bm:256 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
# mount /dev/drbd1 /mnt/
# cd /mnt
# ls （看到server3挂载的内容）
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@server3.example.com, 2016-09-23 09:29:11
1: cs:Connected ro:Secondary/Secondary ds:UpToDate/UpToDate C r-----
ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
# drbdadm primary dbdata
# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@server3.example.com, 2016-09-23 09:29:11
1: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r-----
ns:4326500 nr:0 dw:132360 dr:4195168 al:34 bm:256 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
# mount /dev/drbd1 /mnt/
# cd /mnt
# ls
（查看到创建的内容）
#rm -fr *
#ls
lost+found
#cd /var/lib/mysql
# ll
总用量 20488
-rw-rw---- 1 mysql mysql 10485760 9月25 21:38 ibdata1
-rw-rw---- 1 mysql mysql5242880 9月25 21:38 ib_logfile0
-rw-rw---- 1 mysql mysql5242880 9月25 21:37 ib_logfile1
drwx------ 2 mysql mysql 4096 9月25 21:37 mysql
drwx------ 2 mysql mysql 4096 9月25 21:37 test
#mv * /mnt/
#chown mysql.mysql /mnt/
#umount /mnt/
#mount /dev/drbd1 /var/lib/mysql/
#/etc/init.d/mysqld start
#umount /dev/lib/mysql/
#/etc/init.d/mysqld stop
# drbdadm secondary dbdata
# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build by root@server3.example.com, 2016-09-23 09:29:11
1: cs:Connected ro:Secondary/Secondary ds:UpToDate/UpToDate C r-----
ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
# drbdadm primary dbdata
# mount /dev/drbd1 /var/lib/mysql/
#/etc/init.d/mysqld start
#cd /var/lib/mysql/
#ls
lost+found ibdata1ib_logfile0ib_logfile1mysqltest mysql.sock
#/etc/init.d/mysqld stop
#cd
#umount /var/lib/mysql/
#drbdadm secondary dbdata
#/etc/init.d/heartbeat stop
@@@@@@@@@@@@@@@@@
#/etc/init.d/heartbeat stop
#cd /etc/ha.d/
# vim haresources
151 server3.example.com IPaddr::172.25.29.100/24/eth0 drbddisk::dbdata Filesystem::/dev/drbd1::/var/lib/mysql mysqld
#scp haresources 172.25.29.4:/etc/ha.d/
#/etc/init.d/heartbeat start
#tail -f /var/log/ha-log
#/etc/init.d/heartbeat start
#tail -f /var/log/ha-log
集群自动把/dev/drbd1 挂载到server3的 /var/lib/mysql 上
@@@@@@@@@@@@
#mysql
mysql> grant all on test.* to zheng@'172.25.29.%' identified by 'Westos-123';
mysql> flush privileges;
mysql> quit
#/etc/init.d/heartbeat stop
#mysql -h 172.25.29.100 -u zheng -pWestos-123
mysql>show databases;
+--------------------+
| Database |
+--------------------+
| information_schema
| #mysql50#lost+found
| mysql |
| test | （集群帮助挂载成功）
+--------------------+
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