Heartbeat+MySQL+NFS 实现高可用(HA)的MySQL集群
2013-08-12 16:38
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大纲
一、环境准备
二、拓扑准备
三、安装与配置heartbrat
四、配置NFS服务
五、安装与配置mysql
六、crm配置资源
一、环境准备
1.操作系统
CentOS 5.5 X86_64 位系统
2.软件环境
heartbeat-2.1.4-11.el5
heartbeat-gui-2.1.4-11.el5
mysql-5.5.33(注：这里用的mysql版本是通用二进制包，直接解压就能用的，若有博友对mysql安装有问题，请参考：http://freeloda.blog.51cto.com/2033581/1252067)
3.高可用集群使用条件
(1).节点名称必须跟 uname -n 命令的执行结果一致
node1:
node1,node2:
说明：拓扑与上几篇博客一致，这里就不详细说明了。
三、安装与配置heartbrat
1.heartbeat v2安装与配置
(1).安装heartbrat
node1:
node1:
5.查看一下集群状态
注：两个节点都在线，资源暂时还没有配置。
6.测试一下hb_gui图形配置界面
四、配置NFS服务
1.创建LVM逻辑卷（用来存放mysql数据文件）
node1,node2,nfs：（三个节点都要创建相同的用户与组）
(1).创建mysql组
3.修改数据目录的用户与组
node1:
node1:
1.解压并链接mysql
node2:
1.卸载数据文件目录
六、crm配置资源
1.新建组资源
2.给组资源增加ID名
3.增加vip资源
4.增加共享存储资源
5.增加mysql服务资源
6.资源增加完成
7.启动全部资源
8.查看一下端口号
说明：从图中可以看出，所有资源全部运行在node2上，现在我们就去访问一下mysql服务
11.node2上测试连接mysql
(1).将node2节点，设置为standby，大家可以看，所有资源全部切换到node1上
(2).node1上查看一下端口
15.cib.xml 集群资源信息库
一、环境准备
二、拓扑准备
三、安装与配置heartbrat
四、配置NFS服务
五、安装与配置mysql
六、crm配置资源
一、环境准备
1.操作系统
CentOS 5.5 X86_64 位系统
2.软件环境
heartbeat-2.1.4-11.el5
heartbeat-gui-2.1.4-11.el5
mysql-5.5.33(注：这里用的mysql版本是通用二进制包，直接解压就能用的，若有博友对mysql安装有问题，请参考：http://freeloda.blog.51cto.com/2033581/1252067)
3.高可用集群使用条件
(1).节点名称必须跟 uname -n 命令的执行结果一致
node1:
[root@node1 src]# uname -n node1.test.com [root@node1 src]# vim /etc/hosts # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 localhost.localdomain localhost ::1 localhost6.localdomain6 localhost6 192.168.18.201 node1.test.com node1 192.168.18.202 node2.test.com node2node2:
[root@node2 ~]# uname -n node2.test.com [root@node2 ~]# vim /etc/hosts # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 localhost.localdomain localhost ::1 localhost6.localdomain6 localhost6 192.168.18.201 node1.test.com node1 192.168.18.202 node2.test.com node2(2).各节点之间ssh互信
node1: ssh-keygen -t rsa -f ~/.ssh/id_rsa -P '' ssh-copy-id -i .ssh/id_rsa.pub root@node2.test.com node2: ssh-keygen -t rsa -f ~/.ssh/id_rsa -P '' ssh-copy-id -i .ssh/id_rsa.pub root@node2.test.com(3).各节点之间时间同步
node1: [root@node1 ~]# ntpdate 202.120.2.101 node2: [root@node2 ~]# ntpdate 202.120.2.1014.增加EPEL yum源
node1,node2:
[root@node src]# wget http://download.fedoraproject.org/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm [root@node src]# rpm -ivh epel-release-5-4.noarch.rpm warning: epel-release-5-4.noarch.rpm: Header V3 DSA signature: NOKEY, key ID 217521f6 Preparing... ########################################### [100%] 1:epel-release ########################################### [100%] [root@node src]# rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5 [root@node src]# yum list5.关闭防火墙与SELinux
node1,node2: [root@node ~]# service iptables stop [root@node ~]# vim /etc/selinux/config # This file controls the state of SELinux on the system. # SELINUX= can take one of these three values: # enforcing - SELinux security policy is enforced. # permissive - SELinux prints warnings instead of enforcing. # disabled - SELinux is fully disabled. SELINUX=disabled # SELINUXTYPE= type of policy in use. Possible values are: # targeted - Only targeted network daemons are protected. # strict - Full SELinux protection. SELINUXTYPE=targeted二、拓扑准备
说明：拓扑与上几篇博客一致，这里就不详细说明了。
三、安装与配置heartbrat
1.heartbeat v2安装与配置
(1).安装heartbrat
node1:
[root@node ~]# yum -y install heartbeat*
node2:
[root@node ~]# yum -y install heartbeat*
(2).配置heartbeat
说明：默认安装好heartbeat没有配置文件，但是样例文件
root@node1 ~]# cd /usr/share/doc/heartbeat-2.1.4/ [root@node1 heartbeat-2.1.4]# ls apphbd.cf COPYING faqntips.txt HardwareGuide.html hb_report.txt README rsync.txt authkeys COPYING.LGPL GettingStarted.html HardwareGuide.txt heartbeat_api.html Requirements.html startstop AUTHORS DirectoryMap.txt GettingStarted.txt haresources heartbeat_api.txt Requirements.txt ChangeLog faqntips.html ha.cf hb_report.html logd.cf rsync.html注:这里我们只需要两个文件，ha.cf 与 authkeys
[root@node1 ha.d]# dd if=/dev/random bs=512count=1| openssl md5 #生成密钥随机数 0+1records in 0+1records out 128bytes (128B) copied, 0.000214seconds, 598kB/s a4d20b0dd3d5e35e0f87ce4266d1dd64 [root@node1 ~]# vim /etc/ha.d/authkeys auth 1 1 md5 a4d20b0dd3d5e35e0f87ce4266d1dd64
[root@node1 ha.d]# chmod 600 authkeys #修改密钥文件的权限为600
[root@node1 ha.d]# vim ha.cf 主要修改两处（其它都可以默认）： (1).修改心跳信息的传播方式（这里是组播） mcast eth0 225.100.100.100 694 1 0 (2).配置集群中的节点数 node node1.test.com node node2.test.com (3).启用crm crm on2.复制以上两个配置文件到node2上
[root@node1 ha.d]# scp authkeys ha.cf node2:/etc/ha.d/
3.启动节点
[root@node1 ha.d]# ssh node2 "service heartbeat start" Strting High-Availability services: [确定] logd is already stopped [root@node1 ha.d]# service heartbeat start Starting High-Availability services: 2013/08/07_17:19:22 INFO: Resource is stopped [确定]4.查看一下端口
node1:
[root@node1 ~]# netstat -ntulp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:616 0.0.0.0:* LISTEN 2554/rpc.statd tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 2515/portmap tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 2850/cupsd tcp 0 0 0.0.0.0:5560 0.0.0.0:* LISTEN 3170/mgmtd tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2940/sendmail: acce tcp 0 0 127.0.0.1:6010 0.0.0.0:* LISTEN 17808/0 tcp 0 0 :::22 :::* LISTEN 2837/sshd tcp 0 0 ::1:6010 :::* LISTEN 17808/0 udp 0 0 0.0.0.0:50185 0.0.0.0:* 2925/heartbeat: wri udp 0 0 0.0.0.0:47376 0.0.0.0:* 3069/avahi-daemon: udp 0 0 0.0.0.0:694 0.0.0.0:* 2925/heartbeat: wri udp 0 0 0.0.0.0:610 0.0.0.0:* 2554/rpc.statd udp 0 0 0.0.0.0:613 0.0.0.0:* 2554/rpc.statd udp 0 0 0.0.0.0:5353 0.0.0.0:* 3069/avahi-daemon: udp 0 0 0.0.0.0:111 0.0.0.0:* 2515/portmap udp 0 0 0.0.0.0:631 0.0.0.0:* 2850/cupsd udp 0 0 :::5353 :::* 3069/avahi-daemon: udp 0 0 :::46332 :::* 3069/avahi-daemon:node2:
[root@node1 ~]# netstat -ntulp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:616 0.0.0.0:* LISTEN 2554/rpc.statd tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 2515/portmap tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 2850/cupsd tcp 0 0 0.0.0.0:5560 0.0.0.0:* LISTEN 3170/mgmtd tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2940/sendmail: acce tcp 0 0 127.0.0.1:6010 0.0.0.0:* LISTEN 17808/0 tcp 0 0 :::22 :::* LISTEN 2837/sshd tcp 0 0 ::1:6010 :::* LISTEN 17808/0 udp 0 0 0.0.0.0:50185 0.0.0.0:* 2925/heartbeat: wri udp 0 0 0.0.0.0:47376 0.0.0.0:* 3069/avahi-daemon: udp 0 0 0.0.0.0:694 0.0.0.0:* 2925/heartbeat: wri udp 0 0 0.0.0.0:610 0.0.0.0:* 2554/rpc.statd udp 0 0 0.0.0.0:613 0.0.0.0:* 2554/rpc.statd udp 0 0 0.0.0.0:5353 0.0.0.0:* 3069/avahi-daemon: udp 0 0 0.0.0.0:111 0.0.0.0:* 2515/portmap udp 0 0 0.0.0.0:631 0.0.0.0:* 2850/cupsd udp 0 0 :::5353 :::* 3069/avahi-daemon: udp 0 0 :::46332 :::* 3069/avahi-daemon:注：上面端口号可以看出，heartbeat已经正常启动。
5.查看一下集群状态
注：两个节点都在线，资源暂时还没有配置。
6.测试一下hb_gui图形配置界面
[root@node1 ~]# hb_gui & [1] 20377
四、配置NFS服务
1.创建LVM逻辑卷（用来存放mysql数据文件）
[root@nfs ~]# pvcreate /dev/sdb #创建物理卷 [root@nfs ~]# vgcreate myvg /dev/sdb #创建卷组 [root@nfs ~]# lvcreate -L 10G -n mydata myvg #创建逻辑卷 [root@nfs ~]# mke2fs -j /dev/myvg/mydata #格式化逻辑卷 [root@nfs ~]# lvs #查看逻辑卷 [root@nfs ~]# mkdir /mydata #创建挂载目录 [root@nfs ~]# mount /dev/myvg/mydata /mydata/ #挂载 [root@nfs ~]# cd /mydata/ #进入挂载目录 [root@nfs ~]# mkdir data #创建数据目录2.创建mysql的用户与mysql组
node1,node2,nfs：（三个节点都要创建相同的用户与组）
(1).创建mysql组
[root@nfs ~]# groupadd -g 3306 mysql(2).创建mysql用户
[root@nfs ~]# useradd -u 3306 -g mysql -s /sbin/nologin -M mysql(3).查看
[root@nfs ~]# id mysql uid=3306(mysql) gid=3306(mysql) groups=3306(mysql)说明：在node1与node2也要创建相同的用户和组
3.修改数据目录的用户与组
[root@nfs ~]# chow -R mysql.mysql /mydata/data/ [root@nfs ~]# ll /mydata/ 总计 12 drwxr-xr-x 6 mysql mysql 4096 08-12 13:40 data4.修改nfs配置文件
[root@nfs ~]# vim /etc/exports /mydata 192.168.18.0/24(no_root_squash,rw,async)5.重新输出一下nfs
[root@nfs ~]# exportfs -arv exporting 192.168.18.0/24:/mydata6.查看输出的nfs共享存储
[root@nfs ~]# showmount -e 192.168.18.208 Export list for 192.168.18.208: /mydata 192.168.18.0/247.测试挂载
node1:
[root@node1 ~]# mkdir /mydata [root@node1 ~]# mount -t nfs 192.168.18.208:/mydata/ /mydata/ [root@node1 ~]# ll /mydata/ total 12 drwxr-xr-x 6 mysql mysql 4096 Aug 12 13:40 datanode2:
[root@node2~]# mkdir /mydata [root@node2 ~]# mount -t nfs 192.168.18.208:/mydata/ /mydata/ [root@node2 ~]# ll /mydata/ total 12 drwxr-xr-x 6 mysql mysql 4096 Aug 12 13:50 data五、安装与配置mysql
node1:
1.解压并链接mysql
[root@node1 ~]# tar -zxvf mysql-5.5.33-linux2.6-x86_64.tar.gz -C /usr/local/ #直接解压到/usr/local目录下 [root@node1 ~]# ln -sv mysql-5.5.33-linux2.6-x86_64 mysql #设置一个软链接 [root@node1 ~]# cd /usr/local/mysql [root@node1 mysql]# ll total 204 drwxr-xr-x 2 root mysql 4096 Aug 11 14:45 bin -rw-r--r-- 1 root mysql 17987 Jul 15 20:01 COPYING drwxr-xr-x 3 root mysql 4096 Aug 12 13:11 data drwxr-xr-x 2 root mysql 4096 Aug 11 14:45 docs drwxr-xr-x 3 root mysql 4096 Aug 11 14:45 include -rw-r--r-- 1 root mysql 134493 Jul 15 20:01 INSTALL-BINARY drwxr-xr-x 3 root mysql 4096 Aug 11 15:27 lib drwxr-xr-x 4 root mysql 4096 Aug 11 14:45 man drwxr-xr-x 10 root mysql 4096 Aug 11 14:45 mysql-test -rw-r--r-- 1 root mysql 2496 Jul 15 20:01 README drwxr-xr-x 2 root mysql 4096 Aug 11 14:45 scripts drwxr-xr-x 27 root mysql 4096 Aug 11 14:45 share drwxr-xr-x 4 root mysql 4096 Aug 11 14:45 sql-bench drwxr-xr-x 3 root mysql 4096 Aug 11 14:45 support-files2.初始化mysql
[root@node1 ~]# /usr/local/mysql/scripts/mysql_install_db --basedir=/usr/local/mysql --datadir=/mydata/data/ --user=mysql3.提供mysql配置文件
[root@node1 ~]# cp /usr/local/mysql/support-files/my-large.cnf /etc/my.cnf [root@node1 ~]# vim /etc/my.cnf datadir = /mydata/my.cnf #指定数据目录 innodb_file_per_table = 1 #innodb表单独表空间4.提供mysql启动脚本
[root@node1 ~]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld [root@node1 ~]# chmod +x /etc/init.d/mysqld5.启动mysql
[root@node1 mysql]# service mysqld start Starting MySQL... [ OK ]6.查看数据目录
[root@node1 ~]# mount /dev/sda2 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/sda3 on /data type ext3 (rw) /dev/sda1 on /boot type ext3 (rw) tmpfs on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) 192.168.18.208:/mydata/ on /mydata type nfs (rw,addr=192.168.18.208) [root@node1 ~]# cd /mydata/data/ [root@node1 data]# ll total 28784 -rw-rw---- 1 mysql mysql 18874368 Aug 12 13:40 ibdata1 -rw-rw---- 1 mysql mysql 5242880 Aug 12 14:27 ib_logfile0 -rw-rw---- 1 mysql mysql 5242880 Aug 12 08:05 ib_logfile1 -rw-r--r-- 1 root root 4721 Aug 12 07:55 my.cnf drwx------ 2 mysql mysql 4096 Aug 12 08:07 mydb drwx------ 2 mysql root 4096 Aug 12 07:39 mysql -rw-rw---- 1 mysql mysql 126 Aug 12 13:40 mysql-bin.000001 -rw-rw---- 1 mysql mysql 19 Aug 12 13:18 mysql-bin.index -rw-r----- 1 mysql root 18748 Aug 12 14:28 node1.test.com.err -rw-rw---- 1 mysql mysql 6 Aug 12 14:27 node1.test.com.pid drwx------ 2 mysql mysql 4096 Aug 12 07:39 performance_schema drwx------ 2 mysql root 4096 Aug 12 07:39 test7.登录测试一下
[root@node1 data]# mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.5.33-log MySQL Community Server (GPL) Copyright (c) 2000, 2013, 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> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mydb | | mysql | | performance_schema | | test | +--------------------+ 5 rows in set (0.02 sec)注：node1节点mysql配置完成，下面我们来配置node2
node2:
1.卸载数据文件目录
[root@node1 data]# service mysqld stop Shutting down MySQL. [ OK ] [root@node1 data]# cd [root@node1 ~]# umount /mydata/ [root@node1 ~]# mount /dev/sda2 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/sda3 on /data type ext3 (rw) /dev/sda1 on /boot type ext3 (rw) tmpfs on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)2.挂载数据目录到node2上
[root@node2 ~]# mount /dev/sda2 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/sda3 on /data type ext3 (rw) /dev/sda1 on /boot type ext3 (rw) tmpfs on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) [root@node2 ~]# mount -t nfs 192.168.18.208:/mydata/ /mydata/ [root@node2 ~]# mount /dev/sda2 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/sda3 on /data type ext3 (rw) /dev/sda1 on /boot type ext3 (rw) tmpfs on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) 192.168.18.208:/mydata/ on /mydata type nfs (rw,addr=192.168.18.208) [root@node2 ~]# cd /mydata/data/ [root@node2 data]# ll total 28780 -rw-rw---- 1 mysql mysql 18874368 Aug 12 14:30 ibdata1 -rw-rw---- 1 mysql mysql 5242880 Aug 12 14:30 ib_logfile0 -rw-rw---- 1 mysql mysql 5242880 Aug 12 08:05 ib_logfile1 -rw-r--r-- 1 root root 4721 Aug 12 07:55 my.cnf drwx------ 2 mysql mysql 4096 Aug 12 08:07 mydb drwx------ 2 mysql root 4096 Aug 12 07:39 mysql -rw-rw---- 1 mysql mysql 126 Aug 12 13:40 mysql-bin.000001 -rw-rw---- 1 mysql mysql 19 Aug 12 13:18 mysql-bin.index -rw-r----- 1 mysql root 19162 Aug 12 14:30 node1.test.com.err -rw-r----- 1 mysql root 4442 Aug 12 13:40 node2.test.com.err drwx------ 2 mysql mysql 4096 Aug 12 07:39 performance_schema drwx------ 2 mysql root 4096 Aug 12 07:39 test3.将配置文件与启动脚本复制到node2上
[root@node1 ~]# scp /etc/my.cnf node2:/etc/ my.cnf 100% 4721 4.6KB/s 00:00 [root@node1 ~]# scp /etc/init.d/mysqld node2:/etc/init.d/ mysqld 100% 11KB 10.6KB/s 00:004.启动mysql
[root@node2 data]# service mysqld start Starting MySQL.. [ OK ] [root@node2 data]# ll total 28784 -rw-rw---- 1 mysql mysql 18874368 Aug 12 14:30 ibdata1 -rw-rw---- 1 mysql mysql 5242880 Aug 12 14:33 ib_logfile0 -rw-rw---- 1 mysql mysql 5242880 Aug 12 08:05 ib_logfile1 -rw-r--r-- 1 root root 4721 Aug 12 07:55 my.cnf drwx------ 2 mysql mysql 4096 Aug 12 08:07 mydb drwx------ 2 mysql root 4096 Aug 12 07:39 mysql -rw-rw---- 1 mysql mysql 126 Aug 12 13:40 mysql-bin.000001 -rw-rw---- 1 mysql mysql 19 Aug 12 13:18 mysql-bin.index -rw-r----- 1 mysql root 19162 Aug 12 14:30 node1.test.com.err -rw-r----- 1 mysql root 5738 Aug 12 14:33 node2.test.com.err -rw-rw---- 1 mysql mysql 5 Aug 12 14:33 node2.test.com.pid drwx------ 2 mysql mysql 4096 Aug 12 07:39 performance_schema drwx------ 2 mysql root 4096 Aug 12 07:39 test5.登录并查看
[root@node2 data]# mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.5.33-log MySQL Community Server (GPL) Copyright (c) 2000, 2013, 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> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mydb | | mysql | | performance_schema | | test | +--------------------+ 5 rows in set (0.01 sec)6.停止mysql并卸载数据目录
[root@node2 data]# service mysqld stop Shutting down MySQL. [ OK ] [root@node2 data]# cd [root@node2 ~]# umount /mydata/ [root@node2 ~]# mount /dev/sda2 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/sda3 on /data type ext3 (rw) /dev/sda1 on /boot type ext3 (rw) tmpfs on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)注：到这里mysql配置全部完成，下面我们来具体配置一下，高可用的mysql集群
六、crm配置资源
1.新建组资源
2.给组资源增加ID名
3.增加vip资源
4.增加共享存储资源
5.增加mysql服务资源
6.资源增加完成
7.启动全部资源
8.查看一下端口号
[root@node2 ~]# netstat -ntulp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:610 0.0.0.0:* LISTEN 2548/rpc.statd tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 8507/mysqld tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 2509/portmap tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 2842/cupsd tcp 0 0 0.0.0.0:36600 0.0.0.0:* LISTEN - tcp 0 0 0.0.0.0:5560 0.0.0.0:* LISTEN 3157/mgmtd tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2933/sendmail: acce tcp 0 0 127.0.0.1:6011 0.0.0.0:* LISTEN 6706/1 tcp 0 0 :::22 :::* LISTEN 2829/sshd tcp 0 0 ::1:6011 :::* LISTEN 6706/1 udp 0 0 0.0.0.0:40975 0.0.0.0:* 2918/heartbeat: wri udp 0 0 0.0.0.0:33809 0.0.0.0:* - udp 0 0 0.0.0.0:57110 0.0.0.0:* 3062/avahi-daemon: udp 0 0 0.0.0.0:694 0.0.0.0:* 2918/heartbeat: wri udp 0 0 0.0.0.0:604 0.0.0.0:* 2548/rpc.statd udp 0 0 0.0.0.0:607 0.0.0.0:* 2548/rpc.statd udp 0 0 0.0.0.0:5353 0.0.0.0:* 3062/avahi-daemon: udp 0 0 0.0.0.0:111 0.0.0.0:* 2509/portmap udp 0 0 0.0.0.0:631 0.0.0.0:* 2842/cupsd udp 0 0 :::46858 :::* 3062/avahi-daemon: udp 0 0 :::5353 :::* 3062/avahi-daemon:9.查看一下接口IP
[root@node2 ~]# ifconfig eth0 Link encap:Ethernet HWaddr 00:0C:29:EA:CE:79 inet addr:192.168.18.202 Bcast:192.168.18.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:feea:ce79/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:133635 errors:0 dropped:0 overruns:0 frame:0 TX packets:46597 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:46103367 (43.9 MiB) TX bytes:9677373 (9.2 MiB) eth0:0 Link encap:Ethernet HWaddr 00:0C:29:EA:CE:79 inet addr:192.168.18.200 Bcast:192.168.18.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:287 errors:0 dropped:0 overruns:0 frame:0 TX packets:287 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:27967 (27.3 KiB) TX bytes:27967 (27.3 KiB)10.查看一下资源状态
说明：从图中可以看出，所有资源全部运行在node2上，现在我们就去访问一下mysql服务
11.node2上测试连接mysql
[root@node2 ~]# mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.5.33-log MySQL Community Server (GPL) Copyright (c) 2000, 2013, 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> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mydb | | mysql | | performance_schema | | test | +--------------------+ 5 rows in set (0.03 sec)12.mysql授权
mysql> grant all on *.* to root@"192.168.18.%" identified by "123456"; mysql> flush privileges;13.测试一下集群效果，直接访问192.168.18.200
[root@nfs ~]# /usr/local/mysql/bin/mysql -uroot -p123456 -h 192.168.18.200 Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.5.33-log MySQL Community Server (GPL) Copyright (c) 2000, 2013, 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> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mydb | | mysql | | performance_schema | | test | +--------------------+ 5 rows in set (0.01 sec)14.模拟故障
(1).将node2节点，设置为standby，大家可以看，所有资源全部切换到node1上
(2).node1上查看一下端口
[root@node1 ~]# netstat -ntulp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:616 0.0.0.0:* LISTEN 2554/rpc.statd tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 22825/mysqld tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 2515/portmap tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 2850/cupsd tcp 0 0 0.0.0.0:5560 0.0.0.0:* LISTEN 3170/mgmtd tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2940/sendmail: acce tcp 0 0 0.0.0.0:58330 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:6011 0.0.0.0:* LISTEN 20469/1 tcp 0 0 :::22 :::* LISTEN 2837/sshd tcp 0 0 ::1:6011 :::* LISTEN 20469/1 udp 0 0 0.0.0.0:50185 0.0.0.0:* 2925/heartbeat: wri udp 0 0 0.0.0.0:47376 0.0.0.0:* 3069/avahi-daemon: udp 0 0 0.0.0.0:694 0.0.0.0:* 2925/heartbeat: wri udp 0 0 0.0.0.0:41302 0.0.0.0:* - udp 0 0 0.0.0.0:610 0.0.0.0:* 2554/rpc.statd udp 0 0 0.0.0.0:613 0.0.0.0:* 2554/rpc.statd udp 0 0 0.0.0.0:5353 0.0.0.0:* 3069/avahi-daemon: udp 0 0 0.0.0.0:111 0.0.0.0:* 2515/portmap udp 0 0 0.0.0.0:631 0.0.0.0:* 2850/cupsd udp 0 0 :::5353 :::* 3069/avahi-daemon: udp 0 0 :::46332 :::* 3069/avahi-daemon:(3).node1上查看一下IP
[root@node1 ~]# ifconfig eth0 Link encap:Ethernet HWaddr 00:0C:29:23:76:4D inet addr:192.168.18.201 Bcast:192.168.18.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe23:764d/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:285092 errors:0 dropped:0 overruns:0 frame:0 TX packets:319282 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:155185716 (147.9 MiB) TX bytes:297534308 (283.7 MiB) eth0:0 Link encap:Ethernet HWaddr 00:0C:29:23:76:4D inet addr:192.168.18.200 Bcast:192.168.18.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:63015 errors:0 dropped:0 overruns:0 frame:0 TX packets:63015 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:46067195 (43.9 MiB) TX bytes:46067195 (43.9 MiB) (4).node1上测试访问一下mysql [root@node1 ~]# mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.5.33-log MySQL Community Server (GPL) Copyright (c) 2000, 2013, 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> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mydb | | mysql | | performance_schema | | test | +--------------------+ 5 rows in set (0.02 sec)(5).远程测试连接一下mysql
[root@nfs ~]# /usr/local/mysql/bin/mysql -uroot -p123456 -h 192.168.18.200 Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.5.33-log MySQL Community Server (GPL) Copyright (c) 2000, 2013, 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> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mydb | | mysql | | performance_schema | | test | +--------------------+ 5 rows in set (0.01 sec)注：高可用的mysql集群，演示全部完成，最后粘一下cib配置文件，供大家参考！
15.cib.xml 集群资源信息库
[root@node1 ~]# cat /var/lib/heartbeat/crm/cib.xml <cib generated="true" admin_epoch="0" have_quorum="true" ignore_dtd="false" num_peers="2" cib_feature_revision="2.0" crm_feature_set="2.0" ccm_transition="2" dc_uuid="4a0c6580-3e21-4523-a3bb-a921b3f487c0" epoch="217" num_updates="1" cib-last-written="Mon Aug 12 16:03:08 2013"> <configuration> <crm_config> <cluster_property_set id="cib-bootstrap-options"> <attributes> <nvpair id="cib-bootstrap-options-dc-version" name="dc-version" value="2.1.4-node: aa909246edb386137b986c5773344b98c6969999"/> <nvpair id="cib-bootstrap-options-last-lrm-refresh" name="last-lrm-refresh" value="1376291880"/> <nvpair id="cib-bootstrap-options-default-resource-stickiness" name="default-resource-stickiness" value="100"/> </attributes> </cluster_property_set> </crm_config> <nodes> <node uname="node2.test.com" type="normal" id="4a0c6580-3e21-4523-a3bb-a921b3f487c0"> <instance_attributes id="nodes-4a0c6580-3e21-4523-a3bb-a921b3f487c0"> <attributes> <nvpair name="standby" id="standby-4a0c6580-3e21-4523-a3bb-a921b3f487c0" value="on"/> </attributes> </instance_attributes> </node> <node id="d1437638-90d9-4bbb-84fc-c897d8f8d6a2" uname="node1.test.com" type="normal"> <instance_attributes id="nodes-d1437638-90d9-4bbb-84fc-c897d8f8d6a2"> <attributes> <nvpair id="standby-d1437638-90d9-4bbb-84fc-c897d8f8d6a2" name="standby" value="off"/> </attributes> </instance_attributes> </node> </nodes> <resources> <group id="Mysql Service"> <meta_attributes id="Mysql Service_meta_attrs"> <attributes> <nvpair id="Mysql Service_metaattr_target_role" name="target_role" value="started"/> <nvpair id="Mysql Service_metaattr_ordered" name="ordered" value="true"/> <nvpair id="Mysql Service_metaattr_collocated" name="collocated" value="true"/> </attributes> </meta_attributes> <primitive id="vip" class="ocf" type="IPaddr" provider="heartbeat"> <instance_attributes id="vip_instance_attrs"> <attributes> <nvpair id="880a5e57-0d7b-448d-adb2-27191987f2bd" name="ip" value="192.168.18.200"/> <nvpair id="9ede4882-ab99-4450-9828-b89bc8d43df4" name="nic" value="eth0"/> <nvpair id="9179225c-a7f3-4190-8f7b-4d6012498e59" name="cidr_netmask" value="24"/> </attributes> </instance_attributes> </primitive> <primitive id="nfs" class="ocf" type="Filesystem" provider="heartbeat"> <instance_attributes id="nfs_instance_attrs"> <attributes> <nvpair id="0615970e-633d-41a6-acd7-d6823c73d701" name="device" value="192.168.18.208:/mydata"/> <nvpair id="4e2146f8-3890-40a8-8340-6e2787979a60" name="directory" value="/mydata"/> <nvpair id="b7a1d528-a43f-4a46-bee9-fcb7b7b40ee6" name="fstype" value="nfs"/> </attributes> </instance_attributes> <meta_attributes id="nfs_meta_attrs"> <attributes/> </meta_attributes> </primitive> <primitive id="mysql" class="lsb" type="mysqld" provider="heartbeat"> <meta_attributes id="mysql_meta_attrs"> <attributes/> </meta_attributes> </primitive> </group> </resources> <constraints/> </configuration> </cib>补充说明：在下一篇博文中我们会重点讲解，corosync的详细使用！^_^……
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