IP 主機名 角色 MHA 角色
172.16.54.226 MySQL-15.11 MySQL?Master 主 Masterha-node
172.16.54.227?MySQL-15.12 MySQL?Slave1從1 Masterha-node
172.16.54.228?MySQL-15.13 MySQL?Slave2從2 Masterha-node
172.16.54.230 MySQL-15.14 MySQL?Slave3從3 Masterha-node
172.16.54.231?Lvs-15.23 Lvs主 Masterha-manager
172.16.54.232?Lvs-15.24 Lvs?從 Masterha-manager
MySQL寫的VIP：172.16.54.251
MySQL讀的VIP：172.16.54.252
172.16.54.226-230: yum install -y cmake
wget http://mirrors.sohu.com/mysql/MySQL-5.6/mysql-5.6.36-linux-glibc2.5-x86_64.tar.gz
tar zxvf mysql-5.6.36-linux-glibc2.5-x86_64.tar.gz
mv?mysql-5.6.36-linux-glibc2.5-x86_64 /usr/local/mysql
groupadd mysql
useradd -g mysql mysql
chown -R?mysql.mysql?/usr/local/mysql
cd /usr/local/mysql/scripts
./mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/data/data &
mkdir -p /data/log /data/tmp /data/data /var/run/mysql /usr/local/mysql
yum install -y gcc gcc++ git gcc-c++ ncurses-devel cmake libaio bison
echo?"/usr/local/mysql/lib"?>>?/etc/ld.so.conf.d/mysql.conf
ldconfig
226，mysql主：vi /etc/my.cnf
[client]
socket=/var/run/mysql/mysql.sock
[mysqld]
user=mysql
pid-file=/var/run/mysql/mysqld.pid
socket=/var/run/mysql/mysql.sock
basedir=/usr/local/mysql
datadir=/data/data
tmpdir=/data/tmp
server-id=1 #每個MySQL server的此選項都必須唯一
###begin innodb settiong###
innodb_file_per_table=1
innodb_lock_wait_timeout=500
innodb_buffer_pool_size=512M
###end innodb setting###
###key buffer size set###
key-buffer-size=10M
sort_buffer_size=10M
###key buffer size set###
###begin bin log###
log-bin=/data/log/log
expire-logs-days=90
###end bin log###
###begin general log###
#general_log=1
#general_log_file=/data/log/record.log
###end general log###
###begin error log###
log_error=/data/log/error.log
###end error log###
###begin skip name resolve###
skip_name_resolve=1
###end skip name resolve###
###being slow query log###
slow_query_log=1
long_query_time=0.1
slow_query_log_file=/data/log/slow.log
###end slow query log###
###begin replication config###
read_only=0 #MySQL主，此選項設為0，MySQL從，此選項設為1
relay_log_purge=0
replicate_wild_ignore_table=information_schema.%
replicate_wild_ignore_table=performance_schema.%
#rpl_semi_sync_slave_enabled=1
#rpl_semi_sync_master_enabled=1
#rpl_semi_sync_master_timeout=1000 # 1 second
###end replication config###
227-230，從：#/etc/my.cnf
[client]
socket=/var/run/mysql/mysql.sock
[mysqld]
user=mysql
pid-file=/var/run/mysql/mysqld.pid
socket=/var/run/mysql/mysql.sock
basedir=/usr/local/mysql
datadir=/data/data
tmpdir=/data/tmp
server-id=2 #每個MySQL server的此選項都必須唯一
###begin innodb settiong###
innodb_file_per_table=1
innodb_lock_wait_timeout=500
innodb_buffer_pool_size=512M
###end innodb setting###
###key buffer size set###
key-buffer-size=10M
sort_buffer_size=10M
###key buffer size set###
###begin bin log###
log-bin=/data/log/log
expire-logs-days=90
###end bin log###
###begin general log###
#general_log=1
#general_log_file=/data/log/record.log
###end general log###
###begin error log###
log_error=/data/log/error.log
###end error log###
###begin skip name resolve###
skip_name_resolve=1
###end skip name resolve###
###being slow query log###
slow_query_log=1
long_query_time=0.1
slow_query_log_file=/data/log/slow.log
###end slow query log###
###begin replication config###
read_only=1 #MySQL主，此選項設為0，MySQL從，此選項設為1
relay_log_purge=0
replicate_wild_ignore_table=information_schema.%
replicate_wild_ignore_table=performance_schema.%
#rpl_semi_sync_slave_enabled=1
#rpl_semi_sync_master_enabled=1
#rpl_semi_sync_master_timeout=1000 # 1 second
###end replication config###
226-230:
?yum install -y perl-Module-Install.noarch
touch?/data/log/error.log
chown -R mysql.mysql /data/log/error.log
chown -R mysql.mysql /data/log/
cd /usr/local/mysql/scripts
./mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/data/data? --no-defaults?&
echo 'export PATH=/usr/local/mysql/bin:$PATH'>>/etc/profile
source /etc/profile
cp?/usr/local/mysql/support-files/mysql.server?/etc/init.d/mysqld
?chkconfig?mysqld?on
/etc/init.d/mysqld?start
#刪除無用賬號，設置root密碼
mysql?-e?"delete?from?mysql.user?where?user='?';delete?from?mysql.user?where?user='';flush?privileges;
mysqladmin?-u?root?password "123456"
#創建復制賬號
create?user?repl@'172.16.54.%'??identified?by?'123456';
grant?replication?slave?on?*.*?to?repl@'172.16.54%'?;
flush?privileges;
#創建MHA管理賬號
create?user?mha_manager@'172.16.54.%'?identified?by?'123456';
grant?all?on?*.*?to?mha_manager@'172.16.54.%';
flush?privileges;
#半同步復制
#2.8.1安裝相關插件
mysql>?INSTALL?PLUGIN?rpl_semi_sync_master?SONAME?'semisync_master.so';
mysql>INSTALL?PLUGIN?rpl_semi_sync_slave?SONAME?'semisync_slave.so';
#2.8.2配置相關參數#將前文提及的相關選項取消注釋
/bin/sed?-i?'s/#rpl_semi/rpl_semi/p'?/etc/my.cnf
#重啟mysqld，使配置生效
/etc/init.d/mysqld?restart
#設置主從復制
#主226：mysql?-uroot?-p123456 -e?"show?master?status;"
#從226-230：mysql?-uroot?-p123456 -e?"change?master?to?master_host='172.16.54.226',?master_user='repl',?master_password='123456',?master_port=36677,?master_log_file='log.000003',?master_log_pos=394;"
mysql?-uroot?-p123456 -e?"start?slave;"
mysql?-uroot?-p123456 -e?"show?slave?status\G"
#MHA下載地址：https://github.com/yoshinorim/mha4mysql-node
#226-230，安裝MHA:
yum install -y perl-DBD-MySQL cpan??perl-ExtUtils-CBuilder perl-ExtUtils-MakeMaker?perl-ExtUtils-Embed
cpan ExtUtils::Install
cpan Module::Install
yum install -y?https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
unzip?mha4mysql-node-master.zip
mv mha4mysql-node-master /usr/local/
cd /usr/local/mha4mysql-node-master/
perl Makefile.PL
make&&make install
231-232：安裝LVS：
yum install -y ipvsadm
yum install -y?https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
yum install -y perl-DBD-MySQL perl-Config-Tiny perl-Log-Dispatch perl-Parallel-ForkManager perl-Time-HiRes??cpanperl-ExtUtils-CBuilder perl-ExtUtils-MakeMaker??perl-ExtUtils-Embed
cpan ExtUtils::Install
cpan Module::Install
unzip?mha4mysql-node-master.zip
unzip?mha4mysql-manager-master.zip
mv mha4mysql-node-master /usr/local/
mv mha4mysql-manager-master /usr/local/
cd /usr/local/mha4mysql-node-master/
perl Makefile.PL
make&&make install
cd /usr/local/mha4mysql-manager-master/
perl Makefile.PL
make&&make install
#配置MHA主231、232：
cat?<<?EOF?>>?/etc/app1.cnf
[server?default]
#mysql?user?and?password
user=mha_manager
password=123456
port=3306
#replication?user?and?password
repl_user=repl
repl_password=123456
#ssh?user?and?port
ssh_user=root
ssh_port=22
#binlog?directory
master_binlog_dir=/opt/data/log
#working?directory?on?the?manager
manager_workdir=/var/log/masterha/app1
#manager?log?file
manager_log=/var/log/masterha/app1/app1.log
#working?directory?on?MySQL?servers
remote_workdir=/var/log/masterha/app1
#If?MySQL?command?line?utilities?are?installed?under?a?non-standard?directory,?use?this?option?to?set?the?directory.?
client_bindir=/usr/local/mysql/bin
#If?MySQL?libraries?are?installed?under?a?non-standard?directory,?use?this?option?to?set?the?directory.?
client_libdir=/usr/local/mysql/lib
#To?check?by?connecting/disconnecting?every?time,?because?it's?more?strict?and?it?can?detect?TCP?connection?level?failure?more?quickly.?
ping_type=CONNECT
#To?fully?control?the?order?of?priority?(i.e.?host2->host3->host4..)
latest_priority=0
#?IP?address?failover?solution
master_ip_failover_script=/usr/local/scripts/master_ip_failover
#Send?a?report?(i.e.?e-mail)?when?failover?has?completed?or?ended?with?errors
report_script=/usr/local/scripts/send_report
[server-Master1]
hostname=172.16.54.226
candidate_master=
[server-Master2]
hostname=172.16.54.227
candidate_master=1
[server-Slave1]
hostname=172.16.54.228
[server-Slave2]
hostname=172.16.54.230
EOF
#MHA管理,231、232:?
mkdir -p /usr/local/scripts/
vi?/usr/local/scripts/master_ip_failover
#!/bin/bash
#--------------第一部分:變量及函數定義-----------------#
###Begin?Variables?define###
ssh_port=22
cmd=/sbin/ifconfig
vip=1
device=eno16777984:0
netmk=255.255.255.0
start_vip="${cmd}?${device}?${vip}?netmask?${netmk}?up"
stop_vip="${cmd}?${device}?${vip}?netmask?${netmk}?down"
###End?Variables?define###
###Begin?Status?Funciont###
status()
{
exit?0
}
###End?Status?Funciont###
###Begin?Stop?Or?Stopssh?Funciont###
stop()
{
exit?0
}
###End?Stop?Or?Stopssh?Funciont###
###Begin?Start?Funciont###
start()
{
/usr/bin/ssh?-p?${ssh_port}?${ssh_user}@${orig_master_host}?""${stop_vip}""?
/usr/bin/ssh?-p?${ssh_port}?${ssh_user}@${new_master_host}?""${start_vip}""
/usr/bin/ssh?-p?${ssh_port}?${ssh_user}@${new_master_host}?"/etc/init.d/lvsrs?stop"
exit?0
}
###End?Start?Funciont###
#--------------第一部分:變量及函數定義-----------------#
#--------------第二部分:命令行參數-----------------#
###Begin?Get?The?Command-Line?Parameters###
###eval?set?--?"`getopt?-a?-q?-o?n -l?command::,ssh_user:,orig_master_host:,orig_master_ip:,orig_master_port:,new_master_host:,new_master_ip:,new_master_port:,new_master_user:,new_master_password:?--?"$@"`"
eval?set?--?"`getopt?-a?-q?-o?n?-l?command::,ssh_user:,orig_master_host:,orig_master_ip:,new_master_host:,new_master_ip:?--?"$@"`"
if?[?$??!=?0?]?;?then?echo?"Terminating..."?>&2?;exit?1;fi
while?true
do
case?"$1"?in
--command)
command="${2}";
shift;;
--ssh_user)
ssh_user="${2}";
shift;;
--orig_master_host)
orig_master_host="${2}";
shift;;
--orig_master_ip)
orig_master_ip="${2}";
shift;;
--new_master_host)
new_master_host="${2}";
shift;;
--new_master_ip)
new_master_ip="${2}";
shift;;
--)
shift;
break;;
esac
shift
done
###End?Get?The?Command-Line?Parameters###
#--------------第二部分:命令行參數-----------------#
#--------------第三部分:函數調用-----------------#
if?[?"${command}"?==?"status"?];
then
status;
fi
if?[?"${command}"?==?"stop"?]?||?[?"${command}"?==?"stopssh"?]?;
then
stop;
fi
if?[?"${command}"?==?"start"?];
????????then????
????????start;
????????fi
#--------------第三部分:函數調用-----------------#
vi /usr/local/scripts/send_report
#!/bin/bash
#--------------第一部分:變量及函數定義-----------------#
send_report()
{
echo -e "Orig_master is ${dead_master_host}.\n New_master is ${new_master_host}.\n New_slave_hosts is ${new_slave_hosts}. \n ${body}" | mail -s ${subject} 413379253@qq.com
}
#--------------第一部分:變量及函數定義-----------------#
#--------------第二部分:命令行參數-----------------#
###Begin Get The Command-Line Parameters###
eval set -- "`getopt -a -q -o n -l dead_master_host:,body:,new_slave_hosts:,subject:,new_master_host: -- "$@"`"
if [ $? != 0 ] ; then echo "Terminating..." >&2 ;exit 1;fi
while true
do
case "$1" in
--dead_master_host)
dead_master_host="${2}";
shift;;
--body)
body="${2}";
shift;;
--new_slave_hosts)
new_slave_hosts="${2}";
shift;;
--subject)
subject="${2}";
shift;;
--new_master_host)
new_master_host="${2}";
shift;;
--)
shift;
break;;
esac
shift
done
###End Get The Command-Line Parameters###
#--------------第二部分:命令行參數-----------------#
send_report;
226-232:ssh分發：
ssh-keygen?-t?rsa
ssh-copy-id root@172.16.54.226
ssh-copy-id root@172.16.54.227
ssh-copy-id root@172.16.54.228
ssh-copy-id root@172.16.54.230
ssh-copy-id root@172.16.54.231
ssh-copy-id root@172.16.54.232
#MHA管理231、232 SSH、repl檢查：
masterha_check_ssh?--conf=/etc/app1.cnf
masterha_check_repl?--conf=/etc/app1.cnf?
masterha_manager --conf=/etc/app1.cnf? ?#啟動
masterha_check_status --conf=/etc/app1.cnf? ? ?#檢查狀態
#mysql 226-230:
vi?/etc/cron.d/purge_relay_logs
#?purge?relay?logs?at?5am???
0?5?*?*?*?root?/usr/bin/purge_relay_logs?--user=mha_manager?--host=172.16.54.226 --password='123456'?--port=3306 --workdir=/opt/data/tmp?--disable_relay_log_purge?>>?/var/log/masterha/purge_relay_logs.log?2>&1
2.1創建內核目錄的鏈接文件
[root@Lvs-15.23?~?13:08:34]#ls?/usr/src/kernels
2.6.18-308.el5-x86_64
[root@Lvs-15.23?~?13:08:42]#
ln?-s?/usr/src/kernels/2.6.18-308.el5-x86_64??/usr/src/linux
[root@Lvs-15.23?~?13:09:48]#ll?/usr/src/linux
lrwxrwxrwx?1?root?root?38?01-04?17:54?/usr/src/linux?->?
/usr/src/kernels/2.6.18-308.el5-x86_64
2.2安裝
[root@Lvs-15.23?xxm?13:13:00]#tar?xf?ipvsadm-1.24.tar.gz
[root@Lvs-15.23?xxm?13:13:11]#cd?ipvsadm-1.24
[root@Lvs-15.23?ipvsadm-1.24?13:45:10]#make?&&?make?install
2.3開啟路由轉發功能
[root@Lvs-15.23?~?13:46:25]#/bin/sed?-i?'s/ip_forward?=?0/ip_forward?=?1/p'?/etc/sysctl.conf
[root@Lvs-15.23?~?13:46:45]#sysctl?-p
二、安裝Keepalived
1下載
2安裝
2.1軟件安裝
[root@Lvs-15.23?xxm?13:49:52]#tar?xf?keepalived-1.2.12.tar.gz?
[root@Lvs-15.23?xxm?13:50:02]#cd?keepalived-1.2.12
[root@Lvs-15.23?keepalived-1.2.12?13:50:03]#?
./configure?--prefix=/usr/local/keepalived
[root@Lvs-15.23?keepalived-1.2.12?13:51:38]#make?&&?make?install
2.2相關文件cp
此操作的原因->keepalived服務啟動腳本默認指定了參數路徑，所以為了能夠正常啟動keepalived服務，需要執行上述操作，當然也可以不cp目標文件，直接vi修改目標文件，將相應的參數指向為真實文件即可。
/bin/cp?/usr/local/keepalived/etc/rc.d/init.d/keepalived?/etc/init.d
/bin/cp?/usr/local/keepalived/etc/sysconfig/keepalived?/etc/sysconfig
/bin/cp?/usr/local/keepalived/sbin/keepalived?/usr/sbin
/bin/mkdir?/etc/keepalived
2.3分離Keepalived日志文件
2.3.1?
[root@Lvs-15.23?keepalived?13:56:52]#vi?/etc/sysconfig/keepalived
[root@Lvs-15.23?keepalived?13:57:54]#tail?-2?/etc/sysconfig/keepalived?
KEEPALIVED_OPTIONS="-D?-d?-S?0"
2.3.2修改syslog.conf定義keepalived的日志
[root@Lvs-15.23?~?13:59:52]#tail?-2?/etc/syslog.conf?
#?Save?keepalived?messages?to?keepalived.log
local0.*????????????????????????????????????????????????/var/log/keepalived.log
2.3.2重啟syslog服務
[root@Lvs-15.23?~?14:00:03]#/etc/init.d/syslog?restart
三、配置Keepalived.conf
3.1?keepalived.conf文件
[root@Lvs-15.23?app1?14:03:38]#cd?/etc/keepalived/
[root@Lvs-15.23?keepalived?14:04:35]#vi?keepalived.conf
[root@Lvs-15.23?keepalived?14:04:57]#cat?keepalived.conf
!?Configuration?File?for?keepalived
!?Globals?configurations
!!!!!!!!!!!!===全局配置===!!!!!!!!!!!
global_defs??{? !全局配置
notification_email??{? !通知郵件的收件人列表?
test@qq.com
?}?
notification_email_from?lvs-15.23@qq.com !發件人地址
smtp_server?127.0.0.1 !使用的郵箱服務器
smtp_connect_timeout?30 !連接smtp?server的timeout
router_id?masterha_manager_1
?}?
!!!!!!!!!!!!===全局配置===!!!!!!!!!!!
!?VRRP?configurations
!!!!!!!!!!!!===VRRP配置===!!!!!!!!!!!
vrrp_script?check_masterha_manager??{??!聲明一個自定義調用系統服務監控腳本，'check_masterha_manager'為自定義
script?"/usr/local/scripts/check_masterha_manager.sh"?!服務健康檢查腳本，如果目標服務down，那么停掉本地???????????????????????????????????????????????????????????????????!?keepalived，實現failover
interval?3??????!腳本被調用的頻率,當前是每3秒調用一次
????????}
vrrp_sync_group?mha??{? !聲明一個vrrp?group，'mha'為自定義,group里定義了一系列有相同特性的instance
group??{?
mha_app1 !自定義instan_1?'mha_app1'
?}?
?}?
vrrp_instance?mha_app1??{??!定義一個vrrp實例，'mha_app1'為自定義，具體實現group里定義的instance
state?BACKUP !起初狀態為bakcup
interface?eth0 !虛擬ip綁定的目標網卡?
virtual_router_id?61?!虛擬路由ID標記，主要是個標記作用?整數型，range?0~100
priority?100 !優先級定義，值越大，優先級越高。整數型，range?0~255
advert_int?1 !檢查間隔時間
authentication??{? !主從間實例的秘鑰配對驗證
auth_type?PASS !簡單的password驗證
auth_pass?1111 !密碼值
?}?
virtual_ipaddress??{? !進行failover的虛擬ip
! 192.168.15.96/24?label?eth0:1? !也可以這樣簡單的寫
192.168.15.96/24?? !也可以這樣簡單的寫
?}?
track_script??{?????????!跟蹤監控腳本，調用之前定義的vrrp?script?'check_masterha_manager'
????????????????check_masterha_manager
?????????????????}
nopreempt?!不搶占?
smtp_alter?!?failover后通過global里的郵件設置發通知郵件
notify_master?"/usr/local/scripts/notify_master.sh"
notify_backup?"/usr/local/scripts/notify_stop.sh"
notify_stop?"/usr/local/scripts/notify_stop.sh"
?}?
!!!!!!!!!!!!===VRRP配置===!!!!!!!!!!!
!!!!!!!!!!!!===LVS配置===!!!!!!!!!!!
virtual_server_group?MRead?{?
192.168.15.96?36677
}?
virtual_server?192.168.15.96?36677?{?
lvs_sched?rr?!?LVS的調度算法
lvs_method?DR?!?LVS的模式
protocol?TCP?
nat_mask?255.255.255.0
sorry_server?192.168.15.11?36677 !備機，可做故障遷移用
real_server?192.168.15.12?36677?{?
weight?1
inhibit_on_failure
TCP_CHECK?{??
connect_port?36677
connect_timeout?10
nb_get_retry?3
????????????????delay_before_retry?1
}?
}
real_server?192.168.15.13?36677?{?
weight?1
inhibit_on_failure
TCP_CHECK?{??
connect_port?36677
connect_timeout?10
nb_get_retry?3
????????????????delay_before_retry?1
}?
}
real_server?192.168.15.14?35577?{?
weight?1
inhibit_on_failure
TCP_CHECK?{??
connect_port?36677
connect_timeout?10
nb_get_retry?3
????????????????delay_before_retry?1
}?
}
}?
!!!!!!!!!!!!===LVS配置===!!!!!!!!!!!
Lvs-15.24的keepalived配置文件有以下3處與Lvs-15.23不同，其他均一樣：
[root@Lvs-15.24?keepalived?15:14:08]#cat?keepalived.conf_real
......
notification_email_from?lvs-15.24@qq.com !發件人地址
.......
router_id?masterha_manager_2
......
virtual_router_id?61?!?虛擬路由ID標記，主要是個標記作用?整數型，range?0~100
priority?50 !?優先級定義，值越大，優先級越高。整數型，range?0~255
......
3.2?check_masterha_manager腳本
#!/bin/bash
###變量及函數定義###
MHA_OK=0 ##mha正常運行，MHA_OK為0，反之為1
CHECK_TIME=3 ##此次腳本檢查共檢查3次
VIP=192.168.4.96
function mha_check() {
/sbin/ip addr|grep ${VIP} > /dev/null 2>&1
if [ $? -eq 0 ?]
then
/usr/bin/masterha_check_status --conf=/etc/app1.cnf > /dev/null 2>&1 #檢查masterha_manager的運行狀態
if [ $? -eq 2 ]?
then
MHA_OK=1
else
MHA_OK=0
fi
else
exit 0
fi
}
###變量及函數定義###
###實現三次檢查###
while [ ${CHECK_TIME} -ne 0 ]
do
CHECK_TIME=$((${CHECK_TIME}-1))
mha_check
if [ ${MHA_OK} -eq 0 ]?
then
CHECK_TIME=0
exit 0
fi
if ?[ ${MHA_OK} -eq 1 ] ?&& [ ${CHECK_TIME} -eq 0 ]
then
/etc/init.d/keepalived stop
? ? ? ? exit 1
fi
sleep 1
done
###實現三次檢查###
3.3?notify_master.sh腳本
[root@Lvs-15.23?~?14:14:27]#vi?/usr/local/scripts/notify_master.sh
[root@Lvs-15.23?~?14:15:44]#cat?/usr/local/scripts/notify_master.sh
#!/bin/bash
scp root@Lvs-15.24:/etc/app1.cnf /etc/ ? ?#Lvs-15.24上要scp15.23的到本地
/usr/bin/nohup?/usr/bin/masterha_manager?--conf=/etc/app1.cnf?--wait_on_monitor_error=10?--wait_on_failover_error=10?--remove_dead_master_conf?<?/dev/null?>?/var/log/masterha/app1/app1.log?2>&1?&
#/usr/bin/nohup?/usr/bin/masterha_manager?--conf=/etc/app1.cnf?--wait_on_failover_error=10?--remove_dead_master_conf?<?/dev/null?>?/var/log/masterha/app1/app1.log?2>&1?&
3.4?notify_stop.sh腳本
[root@Lvs-15.23?~?14:15:47]#vi?/usr/local/scripts/notify_stop.sh
[root@Lvs-15.23?~?14:16:41]#cat?/usr/local/scripts/notify_stop.sh
#!/bin/bash
masterha_check_status?--conf=/etc/app1.cnf|tr?'?'?'\n'|grep?pid?>?/dev/null?2>&1
if?[?$??-eq?0??]
then
kill?-9?`masterha_check_status?--conf=/etc/app1.cnf?|cut?-d'?'?-f2|cut?-d':'?-f2|tr?')'?'?'`
echo?"kill?command"
else
echo?"no?pid"
exit?0
fi
四、MySQL-slave上配置vip
在MySQL-15.11、MySQL-15.12、MySQL-15.13、MySQL-15.14上編寫如下文件，啟動并加入開機自啟動
[root@MySQL-15.11?~?15:29:37]#vi?/etc/init.d/lvsrs?
[root@MySQL-15.11?~?15:29:41]#ll?/etc/init.d/lvsrs?
-rw-r--r--?1?root?root?1004?01-18?15:29?/etc/init.d/lvsrs
[root@MySQL-15.11?~?15:29:43]#chmod?+x??/etc/init.d/lvsrs?
[root@MySQL-15.11?~?15:29:52]#cat??/etc/init.d/lvsrs?
#!/bin/bash
#chkconfig:?2345?80?90
#description:config?VIP?on?LVS?of?Real?Server
VIP=192.168.15.96
#./etc/rc.d/init.d/functions
case?"$1"?in
????start)
????????echo?"?Start?LVS??of??Real?Server"
?/sbin/ifconfig?lo:0?$VIP?broadcast?$VIP?netmask?255.255.255.255?up
?/sbin/route?add?-host?${VIP}?dev?lo:0
????????echo?"1"?>/proc/sys/net/ipv4/conf/lo/arp_ignore
????????echo?"2"?>/proc/sys/net/ipv4/conf/lo/arp_announce
????????echo?"1"?>/proc/sys/net/ipv4/conf/all/arp_ignore
????????echo?"2"?>/proc/sys/net/ipv4/conf/all/arp_announce?
?/sbin/sysctl?-p?>?/dev/null?2>&1
????????;;
????stop)
????????/sbin/ifconfig?lo:0?down
????????echo?"close?LVS?Director?server"
????????echo?"0"?>/proc/sys/net/ipv4/conf/lo/arp_ignore
????????echo?"0"?>/proc/sys/net/ipv4/conf/lo/arp_announce
????????echo?"0"?>/proc/sys/net/ipv4/conf/all/arp_ignore
????????echo?"0"?>/proc/sys/net/ipv4/conf/all/arp_announce
?/sbin/sysctl?-p?>?/dev/null?2>&1
????????;;
????*)
????????echo?"Usage:?$0?{start|stop}"
????????exit?1
esac
[root@MySQL-15.11?~?15:32:06]#chkconfig?lvsrs?on
[root@MySQL-15.11?~?15:32:30]#chkconfig?--list?lvsrs
lvsrs?????????? 0:關閉?1:關閉?2:啟用?3:啟用?4:啟用?5:啟用?6:關閉
五、測試
1啟動lvsrs
4臺MySQL服務器啟動lvsrs
注：MySQL-15.11也啟動lvsrs，是因為將其定位了sorry_server，若沒有此需求，當然可以不在MySQL-15.11上啟動lvsrs。
以MySQL-15.12為例：
[root@MySQL-15.12?~?20:31:08]#/etc/init.d/lvsrs?start
?Start?LVS??of??Real?Server
[root@MySQL-15.12?~?20:38:07]#ip?addr|grep?15.96
????inet?192.168.15.96/32?brd?192.168.15.96?scope?global?lo:0
2?啟動keepalived服務
兩臺Lvs服務器Lvs-15.23（主）、Lvs-15.24（從）啟動keepalived服務
Lvs-15.23：
[root@Lvs-15.23?~?20:28:30]#/etc/init.d/keepalived?start
啟動keepalived：??????????????????????????????????????????[確定]
You?have?new?mail?in?/var/spool/mail/root
[root@Lvs-15.23?~?20:40:07]#ip?addr|grep?15.96
????inet?192.168.15.96/24?scope?global?secondary?eth0
[root@Lvs-15.23?~?20:40:15]#masterha_check_status?--conf=/etc/app1.cnf?
app1?(pid:17521)?is?running(0:PING_OK),?master:192.168.15.11
Lvs-15.24：
[root@Lvs-15.24?~?20:40:52]#/etc/init.d/keepalived?start
啟動keepalived：??????????????????????????????????????????[確定]
[root@Lvs-15.24?~?20:40:57]#ip?addr|grep?15.96
[root@Lvs-15.24?~?20:41:09]#masterha_check_status?--conf=/etc/app1.cnf?
app1?is?stopped(2:NOT_RUNNING).
3測試masterha_manager及Lvs的failover
Lvs-15.23上的keepalived服務停止
[root@Lvs-15.23?~?20:40:27]#/etc/init.d/keepalived?stop
停止keepalived：??????????????????????????????????????????[確定]
[root@Lvs-15.23?~?20:42:43]#ip?addr|grep?15.96
[root@Lvs-15.23?~?20:42:59]#masterha_check_status?--conf=/etc/app1.cnf?
app1?is?stopped(2:NOT_RUNNING).
查看Lvs-15.24的狀態：
[root@Lvs-15.24?~?20:42:47]#ip?addr|grep?15.96
????inet?192.168.15.96/24?scope?global?secondary?eth0
[root@Lvs-15.24?~?20:43:29]#masterha_check_status?--conf=/etc/app1.cnf?
app1?(pid:22419)?is?running(0:PING_OK),?master:192.168.15.11
[root@Lvs-15.24?~?20:43:31]#ipvsadm?-L
IP?Virtual?Server?version?1.2.1?(size=4096)
Prot?LocalAddress:Port?Scheduler?Flags
??->?RemoteAddress:Port???????????Forward?Weight?ActiveConn?InActConn
TCP??192.168.15.96:35577?rr
??->?MySQL-15.14:36677????????????Route???1??????0??????????0?????????
??->?MySQL-15.13:36677????????????Route???1??????0??????????0?????????
??->?MySQL-15.12:36677????????????Route???1??????0??????????0????????
用VIP訪問試一下：
mysql?-u'xxm_test'?-p'123456'?-h'192.168.15.96'?-P'36677'
mysql?-u'xxm_test'?-p'123456'?-h'192.168.15.95'?-P'36677'
|||
均可正常訪問
