MySQL 系列（五）多實例、高可用生產環境實戰 MySQL 系列（一）生產標準線上環境安裝配置案例及棘手問題解決 MySQL 系列（二）史上最屌、你不知道的數據庫操做 MySQL 系列（三）你

時間 2019-12-09

標籤 mysql 系列實例可用生產環境實戰標準線上安裝配置案例棘手問題解決史上不知道數據庫欄目 MySQL 简体版

原文原文鏈接

第一篇：MySQL 系列（一）生產標準線上環境安裝配置案例及棘手問題解決html

第二篇：MySQL 系列（二）史上最屌、你不知道的數據庫操做node

第三篇：MySQL 系列（三）你不知道的視圖、觸發器、存儲過程、函數、事物、索引、語句mysql

第四篇：MySQL 系列（四）主從複製、讀寫分離、模擬宕機、備份恢復方案生產環境實戰linux

第五篇：MySQL 系列（五）多實例、高可用生產環境實戰sql

本章內容：數據庫

MySQL 多實例
簡介
安裝前的配置
生產環境屌炸天的腳步
初始化登陸實現多實例
要再增長一個多實例怎麼辦？解決
MySQL 高可用
部署配置heardbeat
部署配置drbd
heardbeat與drbdde 聯合配置
部署MySQL
聯合heardbeat配置MySQL

1、MySQL 多實例

一、簡介

什麼使多實例呢？bootstrap

多實例就是在一臺機器上開啓多個不一樣的服務端口（如：3306,3307）；vim

運行多個MySQL服務進程，這些進程經過不一樣的socket監聽不一樣的服務端口來提供各自的服務。api

MySQL多實例共用一個 MySQL 的安裝程序，使用不一樣（也可相同）的 my.cnf 配置文件，啓動程序和數據文件。服務器

在提供服務時，多實例 MySQL 在邏輯上是各自獨立的，多個實例的自己是根據配置文件對應的設定值，來得到服務器的相關硬件資源多少。

二、安裝配置前操做

安裝配置前的一些配置少不了

文件的目錄最好也規矩，這樣才專業

#殺掉進程，避免衝突，刪掉啓動命令。
pkill mysqld
ps -ef|grep mysql
rm -f /etc/init.d/mysqld


# 建立目錄,受權
mkdir -p /data/{3306,3307}/data
chown -R mysql.mysql /data/
tree /data/
    /data/      #總的多實例根目錄
├── 3306        #3306實例的目錄
│   └── data    #3306實例的數據文件目錄
└── 3307        #3307實例的目錄
    └── data    #3307實例的數據文件目錄
    4 directories, 0 files

三、配置文件

話很少說，直接上生產環境線上的配置文件：

[client]
port            = 3306
socket          = /data/3306/mysql.sock

[mysql]
no-auto-rehash

[mysqld]
user    = mysql
port    = 3306
socket  = /data/3306/mysql.sock
basedir = /application/mysql
datadir = /data/3306/data
open_files_limit    = 1024
back_log = 600
max_connections = 800
max_connect_errors = 3000
table_cache = 614
external-locking = FALSE
max_allowed_packet =8M
sort_buffer_size = 1M
join_buffer_size = 1M
thread_cache_size = 100
thread_concurrency = 2
query_cache_size = 2M
query_cache_limit = 1M
query_cache_min_res_unit = 2k
#default_table_type = InnoDB
thread_stack = 192K
#transaction_isolation = READ-COMMITTED
tmp_table_size = 2M
max_heap_table_size = 2M
long_query_time = 1
#log_long_format
#log-error = /data/3306/error.log
#log-slow-queries = /data/3306/slow.log
pid-file = /data/3306/mysql.pid
log-bin = /data/3306/mysql-bin
relay-log = /data/3306/relay-bin
relay-log-info-file = /data/3306/relay-log.info
binlog_cache_size = 1M
max_binlog_cache_size = 1M
max_binlog_size = 2M
expire_logs_days = 7
key_buffer_size = 16M
read_buffer_size = 1M
read_rnd_buffer_size = 1M
bulk_insert_buffer_size = 1M
#myisam_sort_buffer_size = 1M
#myisam_max_sort_file_size = 10G
#myisam_max_extra_sort_file_size = 10G
#myisam_repair_threads = 1
#myisam_recover

lower_case_table_names = 1
skip-name-resolve
slave-skip-errors = 1032,1062
replicate-ignore-db=mysql

server-id = 1

innodb_additional_mem_pool_size = 4M
innodb_buffer_pool_size = 32M
innodb_data_file_path = ibdata1:128M:autoextend
innodb_file_io_threads = 4
innodb_thread_concurrency = 8
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 2M
innodb_log_file_size = 4M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_lock_wait_timeout = 120
innodb_file_per_table = 0
[mysqldump]
quick
max_allowed_packet = 2M

[mysqld_safe]
log-error=/data/3306/mysql3306.err
pid-file=/data/3306/mysqld.pid

3306_my.cnf

#!/bin/sh
#Nick Suo
#email:630571017@qq.com
#blog:http://www.cnblogs.com/suoning


#init
port=3306
mysql_user="root"
mysql_pwd="suoning"
CmdPath="/application/mysql/bin"
mysql_sock="/data/${port}/mysql.sock"
#startup function
function_start_mysql()
{
    if [ ! -e "$mysql_sock" ];then
      printf "Starting MySQL...\n"
      /bin/sh ${CmdPath}/mysqld_safe --defaults-file=/data/${port}/my.cnf 2>&1 > /dev/null &
    else
      printf "MySQL is running...\n"
      exit
    fi
}

#stop function
function_stop_mysql()
{
    if [ ! -e "$mysql_sock" ];then
       printf "MySQL is stopped...\n"
       exit
    else
       printf "Stoping MySQL...\n"
       ${CmdPath}/mysqladmin -u ${mysql_user} -p${mysql_pwd} -S /data/${port}/mysql.sock shutdown
   fi
}

#restart function
function_restart_mysql()
{
    printf "Restarting MySQL...\n"
    function_stop_mysql
    sleep 2
    function_start_mysql
}

case $1 in
start)
    function_start_mysql
;;
stop)
    function_stop_mysql
;;
restart)
    function_restart_mysql
;;
*)
    printf "Usage: /data/${port}/mysql {start|stop|restart}\n"
esac

3306_mysql

[client]
port            = 3307
socket          = /data/3307/mysql.sock

[mysql]
no-auto-rehash

[mysqld]
user    = mysql
port    = 3307
socket  = /data/3307/mysql.sock
basedir = /application/mysql
datadir = /data/3307/data
open_files_limit    = 1024
back_log = 600
max_connections = 800
max_connect_errors = 3000
table_cache = 614
external-locking = FALSE
max_allowed_packet =8M
sort_buffer_size = 1M
join_buffer_size = 1M
thread_cache_size = 100
thread_concurrency = 2
query_cache_size = 2M
query_cache_limit = 1M
query_cache_min_res_unit = 2k
#default_table_type = InnoDB
thread_stack = 192K
#transaction_isolation = READ-COMMITTED
tmp_table_size = 2M
max_heap_table_size = 2M
#long_query_time = 1
#log_long_format
#log-error = /data/3307/error.log
#log-slow-queries = /data/3307/slow.log
pid-file = /data/3307/mysql.pid
#log-bin = /data/3307/mysql-bin
relay-log = /data/3307/relay-bin
relay-log-info-file = /data/3307/relay-log.info
binlog_cache_size = 1M
max_binlog_cache_size = 1M
max_binlog_size = 2M
expire_logs_days = 7
key_buffer_size = 16M
read_buffer_size = 1M
read_rnd_buffer_size = 1M
bulk_insert_buffer_size = 1M
#myisam_sort_buffer_size = 1M
#myisam_max_sort_file_size = 10G
#myisam_max_extra_sort_file_size = 10G
#myisam_repair_threads = 1
#myisam_recover

lower_case_table_names = 1
skip-name-resolve
slave-skip-errors = 1032,1062
replicate-ignore-db=mysql

server-id = 3

innodb_additional_mem_pool_size = 4M
innodb_buffer_pool_size = 32M
innodb_data_file_path = ibdata1:128M:autoextend
innodb_file_io_threads = 4
innodb_thread_concurrency = 8
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 2M
innodb_log_file_size = 4M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_lock_wait_timeout = 120
innodb_file_per_table = 0
[mysqldump]
quick
max_allowed_packet = 2M

[mysqld_safe]
log-error=/data/3307/mysql3307.err
pid-file=/data/3307/mysqld.pid

3307_my.cnf

#!/bin/sh
#Nick Suo
#email:630571017@qq.com
#blog:http://www.cnblogs.com/suoning

#init
port=3307
mysql_user="root"
mysql_pwd="suoning"
CmdPath="/application/mysql/bin"
mysql_sock="/data/${port}/mysql.sock"
#startup function
function_start_mysql()
{
    if [ ! -e "$mysql_sock" ];then
      printf "Starting MySQL...\n"
      /bin/sh ${CmdPath}/mysqld_safe --defaults-file=/data/${port}/my.cnf 2>&1 > /dev/null &
    else
      printf "MySQL is running...\n"
      exit
    fi
}

#stop function
function_stop_mysql()
{
    if [ ! -e "$mysql_sock" ];then
       printf "MySQL is stopped...\n"
       exit
    else
       printf "Stoping MySQL...\n"
       ${CmdPath}/mysqladmin -u ${mysql_user} -p${mysql_pwd} -S /data/${port}/mysql.sock shutdown
   fi
}

#restart function
function_restart_mysql()
{
    printf "Restarting MySQL...\n"
    function_stop_mysql
    sleep 2
    function_start_mysql
}

case $1 in
start)
    function_start_mysql
;;
stop)
    function_stop_mysql
;;
restart)
    function_restart_mysql
;;
*)
    printf "Usage: /data/${port}/mysql {start|stop|restart}\n"
esac

3307_mysql

#上傳及拷貝配置文件
cd /home/oldsuo/tools/
rz data.zip
unzip data.zip
    Archive:  data.zip
           creating: data/
           creating: data/3306/
          inflating: data/3306/my.cnf        
          inflating: data/3306/mysql         
           creating: data/3307/
          inflating: data/3307/my.cnf        
          inflating: data/3307/mysql
cp data/3306/my.cnf /data/3306/
cp data/3307/my.cnf /data/3307/
tree /data/

#拷貝啓動文件，加執行權限
cp data/3306/mysql /data/3306/
cp data/3307/mysql /data/3307/
chmod +x /data/3306/mysql
chmod +x /data/3307/mysql
tree /data/           
/data/
├── 3306
│   ├── data
│   ├── my.cnf
│   └── mysql
└── 3307
    ├── data
    ├── my.cnf
└── mysql

# 多實例啓動文件的啓動mysql服務實質：
mysqld_safe --defaults-file=/data/3306/my.cnf 2>&1 > /dev/null &
mysqld_safe --defaults-file=/data/3307/my.cnf 2>&1 > /dev/null &
# 多實例啓動文件的中止mysql服務實質：
mysqladmin -u root -poldsuo -S /data/3306/mysql.sock shutdown
mysqladmin -u root -poldsuo -S /data/3307/mysql.sock shutdown

四、初始化啓動登陸

此時就算完成了，能夠初始化並啓動了，so easy

#初始化數據庫，存放數據路徑，本身放本身的目錄下
cd /application/mysql/scripts/
./mysql_install_db --basedir=/application/mysql/ --datadir=/data/3306/data --user=mysql
./mysql_install_db --basedir=/application/mysql/ --datadir=/data/3307/data --user=mysql


#啓動mysql,並檢查端口
/data/3306/mysql start
/data/3307/mysql start
netstat -lntup|grep 330[6-7]
    tcp        0      0 0.0.0.0:3307                0.0.0.0:*                   LISTEN      27896/mysqld        
tcp        0      0 0.0.0.0:3306                0.0.0.0:*                   LISTEN      27174/mysqld

#受權，並檢查（批量）
find /data/ -type f -name "mysql"
/data/3306/mysql
/data/3307/mysql
find /data/ -type f -name "mysql" -exec chmod 700 {} \;
find /data/ -type f -name "mysql" -exec chown root.root {} \;
find /data/ -type f -name "mysql" -exec ls -l {} \;

#設置mysql登錄密碼，爲nick。
mysqladmin -u root -S /data/3306/mysql.sock password 'nick'
mysqladmin -u root -S /data/3307/mysql.sock password 'nick'
#修改密碼
mysqladmin -uroot -pnick password 'oldsuo' -S /data/3306/mysql.sock

#多實例數據庫的登錄方法，須要參數-S、並指定sock。
mysql -S /data/3306/mysql.sock        #不設置密碼登錄
mysql -S /data/3307/mysql.sock
mysql -uroot -p -S /data/3306/mysql.sock        #設置密碼登錄
mysql -uroot -p -S /data/3307/mysql.sock 
mysql -uroot -p –hlocalhost -S /data/3306/mysql.sock        #遠程登錄
mysql -uroot -p –hlocalhost -S /data/3307/mysql.sock
mysql -uroot -p –h 192.168.200.98 -P 3306
mysql -uroot -p –h 192.168.200.98 -P 3307

#建立庫，名爲d330六、d3307。並檢查。
create database d3306;
create database d3307;
show databases;

五、增長一個mysql實例

問題又來了，要增長一個實例怎麼弄呢？

其實不難，只需按上面步驟，建立目錄，在修改相應配置文件，初始化就ok

#增長一個mysql實例
mkdir -p /data/3308/data
cp /data/3306/my.cnf /data/3308/
cp /data/3306/mysql /data/3308/ 
chown -R mysql.mysql /data/3308/

cd /data/3308/
vim my.cnf
:g/3306/s//3308/g        #批量替換命令
vi mysql
:g/3306/s//3308/g
#初始化數據庫
cd /application/mysql/scripts/
./mysql_install_db --basedir=/application/mysql/ --datadir=/data/3308/data --user=mysql
#啓動數據庫，並檢查端口
/data/3308/mysql start
netstat -lntup|grep 330
#設置密碼爲nick。
mysqladmin -u root -S /data/3308/mysql.sock password 'nick'
#登錄mysql
mysql -uroot -p -S /data/3308//mysql.sock

2、MySQL 高可用雙機熱備

小編啥也不說了，直接把公司得環境搬上來吧

本文采用 heartbeat + drbd + MySQL 實現MySQL的高可用。

其原理圖以下：

一、部署heartbeat3.0

heartbeat 是一個高可用集羣架構，它最核心的兩個部分爲：心跳監測和資源接管，心跳監測是經過HA心跳實時監測，機器之間相互發送報文來告訴對方本身當前的狀態，若是在指定的時間內未收到對方發送的報文，那就認爲對方以宕機等，這時啓動資源接管，使備份服務器變爲主服務器，使服務器正常運行。

1.1.配置主機名與hosts

一慣的，需先改主機名與hosts文件

1>    data-1-1
hostname data-1-1
sed -i 's#HOSTNAME=localhost.localdomain#HOSTNAME=data-1-1#g' /etc/sysconfig/network
tail -1 /etc/sysconfig/network
/sbin/route add -host 192.168.1.5 dev eth1
echo '/sbin/route add -host 192.168.1.5' >>/etc/rc.local
route -n
#退出從新登陸查看修改後主機名
2>    data-1-2
hostname data-1-2
sed -i 's#HOSTNAME=localhost.localdomain#HOSTNAME=data-1-2#g' /etc/sysconfig/network
tail -1 /etc/sysconfig/network
/sbin/route add -host 192.168.1.3 dev eth1
echo '/sbin/route add -host 192.168.1.3' >>/etc/rc.local
route -n

[root@localhost ~]# hostname data-1-2
[root@localhost ~]# sed -i 's#HOSTNAME=localhost.localdomain#HOSTNAME=data-1-2#g' /etc/sysconfig/network
[root@localhost ~]# tail -1 /etc/sysconfig/network
HOSTNAME=data-1-2
[root@localhost ~]# /sbin/route add -host 192.168.1.6 dev eth1
[root@localhost ~]# echo '/sbin/route add -host 192.168.1.6' >>/etc/rc.local 
[root@localhost ~]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.1.6     0.0.0.0         255.255.255.255 UH    0      0        0 eth1
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1
192.168.200.0   0.0.0.0         255.255.255.0   U     0      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth1
0.0.0.0         192.168.200.6   0.0.0.0         UG    0      0        0 eth0

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1.2.下載安裝epel包

yum 安裝前需先安裝 epel 包

mkdir -p /home/oldsuo/tools
cd /home/oldsuo/tools/
sed -i 's#keepcache=0#keepcache=1#g' /etc/yum.conf
wget http://mirrors.opencas.cn/epel/6/i386/epel-release-6-8.noarch.rpm
rpm -ivh epel-release-6-8.noarch.rpm
rpm -qa |grep epel

1.3.安裝heartbeat

yum 安裝，簡單快捷

yum install heartbeat –y

1.4.配置heartbeat

安裝完配置，如下是快速配置文檔

cd /etc/ha.d/
cp ha.cf ha.cf.ori
cp authkeys authkeys.ori
cp haresources haresources.ori
chmod 600 authkeys

vim ha.cf
debugfile      /var/log/ha-debug
logfile         /var/log/ha-log
logfacility      local1

keepalive      2
deadtime      30
warntime      10
initdead       60

#bcast  eth1
mcast   eth1    225.0.0.1 694 1 0

auto_failback       on
node            data-1-1
node            data-1-2
crm             no

vim authkeys
auth 1
1 sha1  sui1bian2xie3duo4dian5suibianxieduodian

vim haresources
#192.168.1.3    
data-1-1       IPaddr::192.168.200.91/24/eth0
#data-1-1      IPaddr::192.168.200.91/24/eth0    httpd

#192.168.1.5
data-1-2       IPaddr::192.168.200.94/24/eth0

#mysql master
#picdata-1-1    IPaddr::192.168.1.3/24/eth1     mysqld
#picdata-1-1    IPaddr::192.168.1.3/24/eth1

#mysql slave
#picdata-1-2    IPaddr::192.168.1.5/24/eth1

1.5.配置hosts

檢查 hosts，必定要作

#！！！主機名必須與uname -n 顯示一致！
cat >>/etc/hosts<<eof
192.168.1.3 data-1-1
192.168.1.5 data-1-2
eof
tail -2 /etc/hosts
ping data-1-1
ping data-1-2

[root@data-1-2 heartbeat-3.0.4]# cat >>/etc/hosts<<eof
> 192.168.1.3 data-1-1
> 192.168.1.5 data-1-2
> eof
[root@data-1-2 heartbeat-3.0.4]# tail -2 /etc/hosts
192.168.1.6 data-1-1
192.168.1.7 data-1-2
[root@data-1-2 heartbeat-3.0.4]# ping data-1-1
64 bytes from data-1-1 (192.168.1.3): icmp_seq=1 ttl=64 time=1.98 ms
[root@data-1-2 heartbeat-3.0.4]# ping data-1-2
64 bytes from data-1-2 (192.168.1.5): icmp_seq=1 ttl=64 time=0.040 ms

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1.6.啓動heartbeat服務

能夠啓動啦，啦

/etc/init.d/iptables stop
setenforce 0
/etc/init.d/heartbeat start
ps -ef |grep hear

[root@data-1-1 ha.d]# /etc/init.d/iptables stop
[root@data-1-1 ha.d]# setenforce 0
setenforce: SELinux is disabled
[root@data-1-1 ha.d]# /etc/init.d/heartbeat start
Starting High-Availability services: INFO:  Resource is stopped
INFO:  Resource is stopped
Done.
[root@data-1-1 ha.d]# ps -ef |grep hear
root      5282     1  0 14:17 ?        00:00:00 heartbeat: master control process
root      5286  5282  0 14:17 ?        00:00:00 heartbeat: FIFO reader        
root      5287  5282  0 14:17 ?        00:00:00 heartbeat: write: mcast eth1  
root      5288  5282  0 14:17 ?        00:00:00 heartbeat: read: mcast eth1   
root      5298  1763  0 14:18 pts/0    00:00:00 grep hear

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二、部署 DRBD

DRBD 是一個用軟件實現、不共享、服務器之間鏡像塊塊的存儲複製解決方案。

在高可用(HA)環境中使用 DRBD，能夠代替一個共享的盤陣。

2.1.環境準備

#！！！雙網卡，雙硬盤

2.2.對磁盤分區

超過2T的磁盤，通常是 parted 分區，支持更好

#parted分區
##data-1-1和data-1-2操做同樣！
fdisk –l
parted /dev/xvdb mklabel gpt
parted /dev/xvdb mkpart primary 0 1024
parted /dev/xvdb p
parted /dev/xvdb mkpart primary 1025 2146
parted /dev/xvdb p

[root@data-1-1 ~]# fdisk -l
Disk /dev/xvdb: 2147 MB, 2147483648 bytes
[root@data-1-1 ~]# parted /dev/xvdb mklabel gpt
信息: You may need to update /etc/fstab.                                  
[root@data-1-1 ~]# parted /dev/xvdb mkpart primary 0 1024
警告: The resulting partition is not properly aligned for best performance.
忽略/Ignore/放棄/Cancel? Ignore                                           
信息: You may need to update /etc/fstab.                                  
[root@data-1-1 ~]# parted /dev/xvdb p
Number  Start   End     Size    File system  Name     標誌
 1      17.4kB  1024MB  1024MB               primary
[root@data-1-1 ~]# parted /dev/xvdb mkpart primary 1025 2146
警告: The resulting partition is not properly aligned for best performance.
忽略/Ignore/放棄/Cancel? Ignore                                           
信息: You may need to update /etc/fstab.                                  
[root@data-1-1 ~]# parted /dev/xvdb p
1      17.4kB  1024MB  1024MB               primary
2      1025MB  2146MB  1121MB               primary

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2.3.安裝配置DRBD

如下是快速安裝配置文檔

1>    安裝epel包
mkdir -p /home/oldsuo/tools
cd /home/oldsuo/tools/
sed -i 's#keepcache=0#keepcache=1#g' /etc/yum.conf
wget http://mirror.ventraip.net.au/elrepo/elrepo/el6/x86_64/RPMS/elrepo-release-6-5.el6.elrepo.noarch.rpm
rpm -ivh elrepo-release-6-5.el6.elrepo.noarch.rpm

2>    安裝drbd,並加載到內核
yum install drbd kmod-drbd84 -y
rpm -qa |grep drbd

cd /home/oldsuo/tools/
export LC_ALL=C
lsmod |grep drbd
modprobe drbd
lsmod |grep drbd
echo "modprobe drbd >/dev/null 2>&1" >/etc/sysconfig/modules/drbd.modules
tail -1 /etc/sysconfig/modules/drbd.modules

#!!!報錯FATAL: Module drbd not found.
http://blog.sina.com.cn/s/blog_702bd5360101h84d.html
[root@data-1-2 ~]# modprobe drbd
FATAL: Module drbd not found.
解決方法：yum install kernel* -y        重啓服務器！

2.4.配置drbd.conf文件

一慣需改配置文件

vim /etc/drbd.conf
global {
 usage-count no;
}

common {
 syncer {
   rate 330M;
   verify-alg crc32c;
 }
}

resource data {
 protocol C;

 disk   {
   on-io-error  detach;
 }

 on data-1-1 {
    device /dev/drbd0;
    disk /dev/xvdb1;
    address 192.168.1.6:7788;
    meta-disk /dev/xvdb2;
    }

 on data-1-2 {
    device /dev/drbd0;
    disk /dev/xvdb1;
    address 192.168.1.7:7788;
    meta-disk /dev/xvdb2;
    }
}

2.5.初始化

啓動前需初始化

drbdadm create-md data

[root@data-1-2 tools]# drbdadm create-md data
initializing activity log
NOT initializing bitmap
Writing meta data...
New drbd meta data block successfully created.

2.6.啓動、關閉及查看狀態

啓動啦，啦，啦，檢查狀態

drbdadm up data
cat /proc/drbd
drbdadm down data    關閉

[root@data-1-1 tools]# drbdadm up data
[root@data-1-1 tools]# cat /proc/drbd
version: 8.4.6 (api:1/proto:86-101)
GIT-hash: 833d830e0152d1e457fa7856e71e11248ccf3f70 build by phil@Build64R6, 2015-04-09 14:35:00
 0: 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:999984

2.7.同步

配置同步

#！！！主上操做！
drbdadm -- --overwrite-data-of-peer primary data
cat /proc/drbd
Primary/Secondary

[root@data-1-1 ~]# drbdadm -- --overwrite-data-of-peer primary data
[root@data-1-1 ~]# cat /proc/drbd
version: 8.4.4 (api:1/proto:86-101)
GIT-hash: 74402fecf24da8e5438171ee8c19e28627e1c98a build by root@data-1-1, 2015-12-11 20:06:46
 0: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r-----
    ns:58112 nr:0 dw:0 dr:58784 al:0 bm:3 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:490464
        [=>..................] sync'ed: 11.2% (490464/548576)K
        finish: 0:00:08 speed: 58,112 (58,112) K/sec
[root@data-1-1 ~]# cat /proc/drbd
version: 8.4.4 (api:1/proto:86-101)
GIT-hash: 74402fecf24da8e5438171ee8c19e28627e1c98a build by root@data-1-1, 2015-12-11 20:06:46
 0: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r-----
    ns:517248 nr:0 dw:0 dr:517920 al:0 bm:31 lo:0 pe:146 ua:0 ap:0 ep:1 wo:f oos:34420
        [=================>..] sync'ed: 94.1% (34420/548576)K
        finish: 0:00:00 speed: 36,724 (36,724) K/sec
[root@data-1-1 ~]# cat /proc/drbd
version: 8.4.4 (api:1/proto:86-101)
GIT-hash: 74402fecf24da8e5438171ee8c19e28627e1c98a build by root@data-1-1, 2015-12-11 20:06:46
 0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r-----
    ns:548576 nr:0 dw:0 dr:549248 al:0 bm:34 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
[root@data-1-1 ~]# cat /proc/drbd
version: 8.4.4 (api:1/proto:86-101)
GIT-hash: 74402fecf24da8e5438171ee8c19e28627e1c98a build by root@data-1-1, 2015-12-11 20:06:46
 0: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r-----
    ns:548576 nr:0 dw:0 dr:549248 al:0 bm:34 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0

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2.8.掛載磁盤

掛載磁盤

#主！！！
mkfs.ext4 /dev/drbd0
mkdir /data
mount /dev/drbd0 /data/
df -HT
mount /dev/xvdb2 /mnt/
#從！！！
mkdir /data

[root@data-1-1 tools]# mkfs.ext4 /dev/drbd0         
mke2fs 1.41.12 (17-May-2010)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
62592 inodes, 249995 blocks
12499 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=260046848
8 block groups
32768 blocks per group, 32768 fragments per group
7824 inodes per group
Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376

Writing inode tables: done                            
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 23 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
[root@data-1-1 tools]# mkdir /md1
[root@data-1-1 tools]# mount /dev/drbd0 /md1/
[root@data-1-1 tools]# df -HT
Filesystem                   Type   Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root ext4    49G  6.4G   40G  14% /
tmpfs                        tmpfs  187M     0  187M   0% /dev/shm
/dev/xvda1                   ext4   500M   85M  389M  18% /boot
/dev/drbd0                   ext4   992M  1.3M  939M   1% /data
[root@data-1-1 data]# mount /dev/xvdb2 /mnt/
mount: you must specify the filesystem type

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3：配合heartbeat調試drbd服務配置

聯合 heartbeat 調試配置 DRBD 服務，二者結合

#兩臺操做！
/etc/init.d/heartbeat stop
#後面加入內容，不能換行
vim /etc/ha.d/haresources
data-1-1       IPaddr::192.168.200.91/24/eth0 drbddisk::data Filesystem::/dev/drbd0::/data::ext4
/etc/init.d/heartbeat start

###！！！/etc/ha.d/resource.d/IPaddr！！！
###！！！/etc/ha.d/resource.d/drbddisk！！！

4：部署MySQL

快速安裝 MySQL 文檔

4.1.解壓配置

mkdir -p /home/oldsuo/tools/
cd /home/oldsuo/tools/
rz 上傳免編譯安裝包
ls mysql-5.5.47-linux2.6-x86_64.tar.gz
tar zxf mysql-5.5.47-linux2.6-x86_64.tar.gz
mkdir -p /application/
mv mysql-5.5.47-linux2.6-x86_64 /application/mysql-5.5.47
ln -s /application/mysql-5.5.47/ /application/mysql
ls -l /application/
#檢查
[root@data-1-1 tools]# ls -l /application/
lrwxrwxrwx   1 root root        26 Dec 13 13:25 mysql -> /application/mysql-5.7.10/
drwxr-xr-x   9 7161 wheel     4096 Nov 30 03:54 mysql-5.7.10

4.2.建立用戶

groupadd mysql
useradd -g mysql -M mysql

4.3.多實例配置

#殺掉進程，避免衝突，刪掉啓動命令。
pkill mysqld
ps -ef|grep mysql
rm -f /etc/init.d/mysqld

#上傳及拷貝配置文件
cd /home/oldsuo/tools/
rz data.zip
unzip data.zip
    Archive:  data.zip
           creating: data/
           creating: data/3306/
          inflating: data/3306/my.cnf        
          inflating: data/3306/mysql         
           creating: data/3307/
          inflating: data/3307/my.cnf        
          inflating: data/3307/mysql
cp data/3306/my.cnf /data/3306/
cp data/3307/my.cnf /data/3307/
tree /data/

#拷貝啓動文件，加執行權限
cp data/3306/mysql /data/3306/
cp data/3307/mysql /data/3307/
chmod +x /data/3306/mysql
chmod +x /data/3307/mysql
tree /data/           
/data/                #總的多實例根目錄
├── 3306            #3306實例的目錄
│   ├── my.cnf    #3306實例的配置文件
│   └── mysql        #3306實例的啓動文件
└── 3307            #3307實例的目錄
    ├── my.cnf    #3307實例的配置文件
└── mysql        #3307實例的啓動文件

4.3.初始化數據庫，啓動單實例

#初始化數據庫
cd /application/mysql/scripts/
./mysql_install_db --basedir=/application/mysql --datadir=/data/3306/data --user=mysql

[root@data-1-1 ~]# /application/mysql/bin/mysql_install_db --basedir=/application/mysql --datadir=/data/3306/data --user=mysql
2015-12-13 13:53:25 [WARNING] mysql_install_db is deprecated. Please consider switching to mysqld --initialize
2015-12-13 13:53:33 [WARNING] The bootstrap log isn't empty:
2015-12-13 13:53:33 [WARNING] 2015-12-13T05:53:26.040946Z 0 [Warning] --bootstrap is deprecated. Please consider using --initialize instead
2015-12-13T05:53:26.076433Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2015-12-13T05:53:26.076465Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)

#受權,並作替換
find /data –name mysql.mysql /data
sed -i 's#/usr/local/mysql#/application/mysql#g' /application/mysql/bin/mysqld_safe

#啓動單實例，並檢查
/data/3306/mysql start
sleep 6
lsof -i :3306

5：配合heartbeat調試MySQL

#兩邊操做，添加mysql。
cp /data/3306/mysql /etc/ha.d/resource.d/
chmod +x /etc/ha.d/resource.d/
vim /etc/ha.d/haresources
data-1-1       IPaddr::192.168.200.91/24/eth0 drbddisk::data Filesystem::/dev/drbd0::/md1::ext4 mysql