haproxy+mycat+mysql架构方案讲义-创新互联
本文主要给大家介绍haproxy+mycat+mysql' target='_blank' href='https://www.yisu.com/mysql/'>mysql 架构方案讲义,希望可以给大家补充和更新些知识,如有其它问题需要了解的可以持续在创新互联行业资讯里面关注我的更新文章的。
创新互联公司:于2013年开始为各行业开拓出企业自己的“网站建设”服务,为上1000+公司企业提供了专业的成都网站设计、成都网站建设、网页设计和网站推广服务, 按需求定制网站由设计师亲自精心设计,设计的效果完全按照客户的要求,并适当的提出合理的建议,拥有的视觉效果,策划师分析客户的同行竞争对手,根据客户的实际情况给出合理的网站构架,制作客户同行业具有领先地位的。描述:
架构方案:
mysql (master/slave) --gtid 方式主备(pos 也可)
mycat (master/slave) --xinted 插件时间主备模式
haproxy(master/slave) --keepalived 自动切换
--keepalived和haproxy必须装在同一台机器上, keepalived负责为该云服务器' target='_blank' href='https://www.yisu.com/'>服务器抢占vip(虚拟ip),抢占到vip后,对该主机的访问可以通过原来的ip(10.118.242.214)访问,也可以直接通过vip(10.118.242..212)访问。
--10.118.242.214上的keepalived也会去抢占vip,抢占vip时有优先级,配置keepalived.conf中的(priority 150 #数值愈大,优先级越高,10.118.242.216上改为120,master和slave上该值配置不同)决定。但是一般哪台主机上的keepalived服务先启动就会抢占到vip,即使是slave,只要先启动也能抢到。
--haproxy负责将对vip的请求分发到mycat上。起到负载均衡' target='_blank' href='https://www.yisu.com/slb/'>负载均衡的作用,同时haproxy也能检测到mycat是否存活,haproxy只会将请求转发到存活的mycat上。
--如果一台云服务器' target='_blank' href='https://www.yisu.com/'>云服务器(keepalived+haproxy服务器)宕机,另外一台上的keepalived会立刻抢占vip并接管服务。
--如果一台mycat服务器宕机,haporxy转发时不会转发到宕机的mycat上,所以mycat依然可用.
MyCAT 后面,连接的是MYSQL 数据库,这里为 : A/B复制模式。
Haproxy + keepalived 安装在同一主机上。
mycat+xinted 安装在同一主机上。
版本: OS : redhat6.4 x86 64bit
Mysql : 5.7.15
Mycat :server-1.5.1-RELEASE
Haproxy : haproxy-1.6.2.tar.gz
keepalived : keepalived-1.2.16.tar.gz
安装之前,最好把iptables ,selinux 关闭
一: 配置本地yum 源,并安装相应的依赖包 (这里我直接套用安装oracle依赖性包加载,一般oracle使用包,其他的软件都会包含。)
二: 安装MYSQL 数据
(5.7 版本之前,可以使用系统root 启用,5.7之后,被限制了,也更加考虑到了其安全性)
注意: 1,mysql 开始安装时,mysql_install_db由5.6之前的在scripts 转移至 bin 目录下。
2,初次进入 mysql 库需要 输入初始密码,路径在 /home/mysql/下:
[mysql@martinli02 mysql-5.7.10]$ cat /home/mysql/.mysql_secret
# Password set for user 'root@localhost' at 2015-12-27 23:17:57
.hyMlk?!b6M!
3, 登陆后,必须要修改密码 mysql> set password=password('xxxxx');
mysql> flush privileges;
三: MYSQL master/slave 配置
---参考 MYSQL 同步复制
----设置参数,自动提交 autocommit = 1 (否然,mycat 插入时,没数据显示)
四: Mycat 安装配置
--这里,mycat 我主要用其实现 读写分离,未做分库分表设置,所以,
只涉及 schema.xml, server.xml 文件的修改。
--Mysql 主节点 使用 innodb 引擎, 备节点 使用myisam 引擎。
# useradd -m -u 1201 -g mysql mycat
# tar -xvf Mycat-server-1.5.1-RELEASE-20160816173057-linux.tar.gz -C /usr/local/
# cd /usr/local/mycat
[root@mysql01 mycat]# ls
bin catlet conf lib logs version.txt --解压出来后,就前5个目录
[root@mysql01 mycat]# cd conf/
[root@mysql01 conf]# ls
autopartition-long.txtlog4j.xmlrule.xmlserver.xml
cacheservice.properties myid.properties schema.xml wrapper.conf
dnindex.properties partition-hash-int.txt sequence_conf.properties zk-create.yaml
ehcache.xmlpartition-range-mod.txt sequence_db_conf.properties
index_to_charset.propertiesrouter.xmlsequence_time_conf.properties
--配置schema.xml 参数--
[root@mysql01 conf]# cat schema.xml
-- server.xml 配置参数 --
[root@mysql01 conf]# cat server.xml
--这里,最新版本可以支持密文,无需明文,这里为了方便。
五, 配置xinetd 服务及参数:
在mycat 1,mycat2 上都需添加检测端口48700的脚本,为此需要用到xinetd, xinetd 为linux 系统基础服务, 主要用来监听MYCAT 是否存活。
yum install xinted*
在: /etc/xinted.d/ 及 /usr/local/bin/xinted 下查看配置文件:
--第一种安装方式:
我这里通过第二种方式安装:
tar -xvf xinetd-2.3.15.tar.gz -C /usr/local/
[root@mysql01 ~]# cd /usr/local/xinetd-2.3.15/
[root@mysql01 xinetd-2.3.15]# ls
aclocal.m4 config.guess config.log configure COPYRIGHT libs README xinetd.spec AUDIT config.h config.status configure.in INSTALL Makefile TODO xinetd.spec.in CHANGELOG config.h.in config.sub contrib install-sh Makefile.in xinetd
[root@mysql01 xinetd-2.3.15]# cd contrib/
[root@mysql01 contrib]# ls
empty.conf mycat_monitor.sh xinetd xinetd.conf xinetd.d
[root@mysql01 contrib]# tail -12 xinetd.conf
groups = yes
umask = 002
# Generally, banners are not used. This sets up their global defaults
#
# banner =
# banner_fail =
# banner_success =
}
includedir /usr/local/xinetd-2.3.15/contrib/xinetd.d --主要修改这里
-- /usr/local/xinetd-2.3.15/contrib/xinetd.d/mycat_status --服务参数路径
mycat_status此配置主要是用来监听mycat是否存活的配置
[root@mysql01 contrib]# cat xinetd.d/mycat_status
service mycat_status
{
flags = REUSE
socket_type = stream
port = 48700
wait = no
user = root
server =/usr/local/xinetd-2.3.15/contrib/mycat_monitor.sh
log_on_failure += USERID
disable = no
}
[root@mycat01 xinetd.d]# pwd
/usr/local/xinetd-2.3.15/contrib/xinetd.d
[root@mycat01 xinetd.d]# cd ../
[root@mycat01 contrib]# ls
empty.conf mycat_monitor.shxinetd xinetd.conf xinetd.d
--mycat_monitor.sh 此配置主要是用来监听mycat是否存活的脚本
[root@mysql01 contrib]# cat mycat_monitor.sh
#!/bin/bash
#/usr/local/bin/mycat_status.sh
# This script checks if a mycat server is healthy running on localhost. It will
# return:
#
# "HTTP/1.x 200 OK\r" (if mycat is running smoothly)
#
# "HTTP/1.x 503 Internal Server Error\r" (else)
mycat=`/usr/local/mycat/bin/mycat status |grep 'not running'| wc -l`
if [ "$mycat" = "0" ];
then
/bin/echo -e "HTTP/1.1 200 OK\r\n"
else
/bin/echo -e "HTTP/1.1 503 Service Unavailable\r\n"
fi
4、/etc/services中加入mycat_status服务 --添加进入后,启动才有效。
加入mycat_status服务,
cd /etc
vi services
在末尾加入以下内容:
mycat_status 48700/tcp # mycat_status
保存
重启xinetd服务
service xinetd restart
############
[root@mycat01 xinetd]# pwd
/usr/local/xinetd-2.3.15/xinetd
--xinetd 启动,停止脚本
--启动脚本:
#!/bin/bash
/usr/local/xinetd-2.3.15/xinetd/xinetd -f /usr/local/xinetd-2.3.15/contrib/xinetd.d/mycat_status &
--停止脚本:
#!/bin/bash
ps -ef |grep xinetd |grep -v grep |awk '{print $2}'|xargs kill -s 9
---------------
启动mysql启动xinted , 启动mycat
----------------
六, 安装keepalived
--openssl 安装:
openssl 必须先于 keepalive 先安装, 否则安装keepalive时有可能报错,keepalived 依赖openssl.
yum install gcc* cc*
安装openssl-devel
yum install openssl-devel -y #如无法yum下载安装,请修改yum配置文件
--通过rpm 包安装:
mkdir -pv /usr/local/openssl/
tar -xvf xxxxx.gz -C /usr/local/
cd /usr/local/openssl-1.0.1l/
./config --prefix=/usr/local/openssl/
make
make test
make install
ln -s /usr/local/openssl /usr/local/ssl
----openssl配置----
vi /etc/ld.so.conf
在/etc/ld.so.conf文件的最后面,添加如下内容:
/usr/local/openssl/lib
vi /etc/profile
内容如下:
export OPENSSL=/usr/local/openssl/bin
export PATH=$PATH:$OPENSSL
执行以下语句是环境变量生效:
source /etc/profile
测试:
cd /usr/local/openssl/
[root@host-10-118-220-136 openssl]# ls
bin include lib ssl
[root@host-10-118-220-136 openssl]# cd bin/
[root@host-10-118-220-136 bin]# ls
c_rehash openssl
[root@host-10-118-220-136 bin]# ldd openssl
linux-vdso.so.1 => (0x00007fff0ba32000)
libdl.so.2 => /lib64/libdl.so.2 (0x0000003883200000)
libc.so.6 => /lib64/libc.so.6 (0x0000003882e00000)
/lib64/ld-linux-x86-64.so.2 (0x0000003882a00000)
[root@host-10-118-220-136 bin]# pwd
/usr/local/openssl/bin
[root@host-10-118-220-136 bin]# which openssl
/usr/bin/openssl
[root@host-10-118-220-136 bin]# openssl version
OpenSSL 1.0.1l 15 Jan 2015
[root@host-10-118-220-136 bin]#
----在这里,只要keepalive 编辑安装时不抱错,就可以了。不管openssl 是否真成功。
--keepalived安装:
tar -xvf keepalived-1.2.16.tar.gz -C /usr/local/
cd /usr/local/keepalived-1.2.16/
./configure
make && make install
如果 keepalived 安装 报错:
安装keepalive错误:configure: error: No SO_MARK
下面加个参数,禁用fwmark
[root@gw keepalived-1.2.16]# ./configure --disable-fwmark
[root@host-10-118-220-136 etc]# cp /usr/local/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/
[root@host-10-118-220-136 etc]# cp /usr/local/etc/sysconfig/keepalived /etc/sysconfig/
[root@host-10-118-220-136 etc]# cp /usr/local/keepalived-1.2.16/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
[root@host-10-118-220-136 etc]# cp /usr/local/sbin/keepalived /usr/sbin/
--keepalived 配置参数:
[root@mysql03 keepalived]# pwd
/usr/local/keepalived-1.2.16/keepalived/etc/keepalived
[root@mysql03 keepalived]# cat keepalived.conf --主配置
! Configuration File for keepalived
vrrp_script chk_http_port
{
script "/etc/keepalived/scripts/check_haproxy.sh"
interval 2
weight 2
}
vrrp_instance VI_1
{
state MASTER(主为MASTER 备为BACKUP)
interface eth0
virtual_router_id 51
priority 150
advert_int 1
authentication {
auth_type PASS
auth_pass 1234
}
track_script {
chk_http_port
}
virtual_ipaddress
{
10.118.242.212 dev eth0 scope global -- 虚拟
10.118.242.211 dev eth0 scope global
}
notify_master /etc/keepalived/scripts/haproxy_master.sh
notify_backup /etc/keepalived/scripts/haproxy_backup.sh
notify_fault /etc/keepalived/scripts/haproxy_fault.sh
notify_stop /etc/keepalived/scripts/haproxy_stop.sh
}
[root@mysql03 keepalived]# cat keepalived.conf --备配置
! Configuration File for keepalived
vrrp_script chk_http_port
{
script "/etc/keepalived/scripts/check_haproxy.sh"
interval 2
weight 2
}
vrrp_instance VI_1
{
state BACKUP(主为MASTER 备为BACKUP)
interface eth0--#对外提供服务的网络接口
virtual_router_id51--#VRRP组名,两个节点的设置必须一样,以指明各个节点属于同一VRRP组
priority 120
advert_int 1
authentication {
auth_type PASS
auth_pass 1234
}
track_script {
chk_http_port --#调用脚本check_haproxy.sh检查haproxy是否存活
}
virtual_ipaddress
{
10.118.242.212 dev eth0 scope global --这ip必须与我们在lvs客户端设定的vip相一致
10.118.242.211 dev eth0 scope global
}
notify_master /etc/keepalived/scripts/haproxy_master.sh
notify_backup /etc/keepalived/scripts/haproxy_backup.sh
notify_fault /etc/keepalived/scripts/haproxy_fault.sh
notify_stop /etc/keepalived/scripts/haproxy_stop.sh
}
-----------------------------------
1. virtual_router_id 51 这个代表一个集群组,如果同一个网段还有另一组集群,请使用不同的组编号区分。如换成52、53等。
2. interface eth3 和172.17.210.103 dev eth3 scope global中的eth3指的是网卡,如果是多网卡,可能会有eth0,eth3,eth4…,可以使用ifconfig命令查看,确保eth0是本机存在的网卡地址。有些服务器如果只有一个网卡,但被人为把eth0改成eth3了,你再写eth0就找不到了的。
-----------------------------------
[root@mysql03 scripts]# cat check_haproxy.sh
#!/bin/bash
STARTHAPROXY="/usr/local/haproxy/sbin/haproxy -f /usr/local/haproxy/haproxy.cfg"
STOPKEEPALIVED="/etc/init.d/keepalived stop"
LOGFILE="/usr/local/keepalived/var/log/keepalived-haproxy-state.log"
echo "[check_haproxy status]" >> $LOGFILE
A=`ps-C haproxy --no-header |wc-l`
echo "[check_haproxy status]" >> $LOGFILE
date >> $LOGFILE
if [ $A -eq 0 ];then
echo $STARTHAPROXY >> $LOGFILE
$STARTHAPROXY >> $LOGFILE 2>&1
sleep5
fi
if [ `ps -C haproxy --no-header |wc-l` -eq0 ];then
exit 0
else
exit 1
fi
-----------------------
粗体check_haproxy.sh
vi /etc/keepalived/scripts/check_haproxy.sh
脚本含义:如果没有haproxy进程存在,就启动haproxy,停止keepalived
check_haproxy.sh
[root@mysql03 scripts]# cat haproxy_master.sh (主备一样)
#!/bin/bash
STARTHAPROXY=`/usr/local/haproxy/sbin/haproxy-f/usr/local/haproxy/haproxy.cfg`
STOPHAPROXY=`ps-ef |grep sbin/haproxy| grep -vgrep|awk'{print $2}'|xargskill-s 9`
LOGFILE="/usr/local/keepalived/var/log/keepalived-haproxy-state.log"
echo "[master]" >> $LOGFILE
date >> $LOGFILE
echo "Being master...." >> $LOGFILE 2>&1
echo "stop haproxy...." >> $LOGFILE 2>&1
$STOPHAPROXY >> $LOGFILE 2>&1
echo "start haproxy...." >> $LOGFILE 2>&1
$STARTHAPROXY >> $LOGFILE 2>&1
echo "haproxy stared ..." >> $LOGFILE
[root@mysql03 scripts]# cat haproxy_fault.sh (主备一样)
#!/bin/bash
LOGFILE=/usr/local/keepalived/var/log/keepalived-haproxy-state.log
echo "[fault]" >> $LOGFILE
date >> $LOGFILE
[root@mysql03 scripts]# cat haproxy_stop.sh (主备一样)
#!/bin/bash
LOGFILE=/usr/local/keepalived/var/log/keepalived-haproxy-state.log
echo "[stop]" >> $LOGFILE
date >> $LOGFILE
--启动keepalived:
[root@mysql03 keepalived-1.2.16]# /etc/init.d/keepalived restart
Stopping keepalived: [FAILED]
Starting keepalived: [ OK ]
-- 测试验证
[root@mysql03 scripts]# ip a
1: lo:
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0:
link/ether 00:50:56:aa:54:86 brd ff:ff:ff:ff:ff:ff
inet 10.118.242.214/24 brd 10.118.242.255 scope global eth0
inet 10.118.242.212/32 scope global eth0
inet6 fe80::250:56ff:feaa:5486/64 scope link
valid_lft forever preferred_lft forever
七: haproxy 安装配置
# tar xf haproxy-1.4.25.tar.gz -C /usr/local/
# cd haproxy-1.4.25
# --查看版本号(os-kener)
# make TARGET=linux26 PREFIX=/usr/local/haproxy install
注:TARGET后面根据本机操作系统内核版本来填写
创建配置文件目录,日志目录,并根据需求编写配置文件
# mkdir /usr/local/haproxy/{conf,logs}
# vim /usr/local/haproxy/conf/haproxy.cfg
配置 参数,主备一样:
[root@mysql03 conf]# cat haproxy.cfg
global
log 127.0.0.1 local0
maxconn 4096
chroot /usr/local/haproxy
user mysql
group mysql
daemon
quiet
nbproc 1
pidfile /usr/local/haproxy/logs/haproxy.pid
defaults
log global
option dontlognull
retries 3
option httplog
option redispatch
maxconn 3000
contimeout 50000
clitimeout 50000
srvtimeout 50000
listen admin_stats
bind 10.118.242.212:48800
stats uri /admin-status
stats auth admin:admin
mode http
option httplog
listen allmycat_service
bind 10.118.242.212:8096
mode tcp
option tcplog
option httpchk OPTION * HTTP/1.1\r\nHost:\ www
balance roundrobin
server mycat_209 10.118.242.209:8066 check port 48700 inter 5s rise 2 fall 3
server mycat_210 10.118.242.210:8066 check port 48700 inter 5s rise 2 fall 3
srvtimeout 20000
listen allmycat_admin
bind 10.118.242.212:8097
mode tcp
option tcplog
option httpchk OPTIONS * HTTP/1.1\r\nHost:\ www
balance roundrobin
server mycat_209 10.118.242.209:9066 check port 48700 inter 5s rise 2 fall 3
server mycat_210 10.118.242.210:9066 check port 48700 inter 5s rise 2 fall 3
srvtimeout 20000
---------------------------
bind 10.118.242.212:8096 对应的是mycat 8066 端口,
bind 10.118.242.212:8097 对应的是mycat 9066 端口。 (需要和mycat 一致)
server 为 mycat 两台主机
----------------------------
配置haproxy 日志记录方式:
yum install rsyslog -y
--默认haproxy 是不记录日志的,为了记录日志还需要配置syslog 模块,在Linux下rsyslogd服务
--先安装rsyslog
cd /etc/rsyslog.d/ --如果没有此目录,需新创建。
[root@mysql03 conf]# cd /etc/rsyslog.d/
[root@mysql03 rsyslog.d]# ls
haproxy.conf
[root@mysql03 rsyslog.d]# cat haproxy.conf --添加内容
$ModLoad imudp
$UDPServerRun 514
local0.* /var/log/haproxy.log
[root@mysql03 rsyslog.d]# pwd
/etc/rsyslog.d --添加
在#### RULES ####上面一行的地方加入以下内容:
# Include all config files in /etc/rsyslog.d/
$IncludeConfig /etc/rsyslog.d/*.conf
#### RULES ####
在local7.* /var/log/boot.log的下面加入以下内容(增加后的效果如下):
local0.* /var/log/haproxy.log
启动rsyslog 服务
--立马在/var/log/有 harporxy.log 了。
[root@mysql03 rsyslog.d]# cd /var/log/
[root@mysql03 log]# ll haproxy.log
-rw-------. 1 root root 5160 Nov 15 16:49 haproxy.log
启动 haproxy:
# /usr/local/haproxy/sbin/haproxy -c /usr/local/haproxy/conf/haproxy.cfg
---------
[root@mysql03 log]# netstat -nltp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1381/rpcbind
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1676/sshd
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 1545/cupsd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1752/master
tcp 0 0 127.0.0.1:6010 0.0.0.0:* LISTEN 6278/sshd
tcp 0 0 127.0.0.1:6011 0.0.0.0:* LISTEN 6387/sshd
tcp 0 0 127.0.0.1:6012 0.0.0.0:* LISTEN 24216/sshd
tcp 0 0 10.118.242.212:8096 0.0.0.0:* LISTEN 16997/haproxy
tcp 0 0 10.118.242.212:48800 0.0.0.0:* LISTEN 16997/haproxy
tcp 0 0 10.118.242.212:8097 0.0.0.0:* LISTEN 16997/haproxy
tcp 0 0 0.0.0.0:56457 0.0.0.0:* LISTEN 1399/rpc.statd
通过本地MYSQL 工具调试:
MYSQL IP + 端口 可以连接
MYCAT IP + 端口 也可以连接
HAPORXY(VIP) + 端口 也可以连接
通过 url 地址 可以看见 haproxy 调度 界面: http://10.118.242.212:48800
账号密码 admin/admin
-------- THE END -------
-----报错处理:
[root@mysql01 sbin]# /usr/local/haproxy-1.6.2/sbin/haproxy -f /usr/local/haproxy-1.6.2/conf/haproxy.cfg &
[1] 6783
[root@mysql01 sbin]# [ALERT] 293/121421 (6783) : parsing [/usr/local/haproxy-1.6.2/conf/haproxy.cfg:21] : 'listen' cannot handle unexpected argument '10.118.242.211:48800'.
[ALERT] 293/121421 (6783) : parsing [/usr/local/haproxy-1.6.2/conf/haproxy.cfg:21] : please use the 'bind' keyword for listening addresses.
[ALERT] 293/121421 (6783) : parsing [/usr/local/haproxy-1.6.2/conf/haproxy.cfg:26] : 'listen' cannot handle unexpected argument '10.118.242.211:8098'.
[ALERT] 293/121421 (6783) : parsing [/usr/local/haproxy-1.6.2/conf/haproxy.cfg:26] : please use the 'bind' keyword for listening addresses.
[ALERT] 293/121421 (6783) : Error(s) found in configuration file : /usr/local/haproxy-1.6.2/conf/haproxy.cfg
[ALERT] 293/121421 (6783) : Fatal errors found in configuration.
--这里的:[/usr/local/haproxy-1.6.2/conf/haproxy.cfg:21] : 'listen' cannot handle unexpected argument '10.118.242.211:48800'.
是因为写法错误:
--------------------
[root@mysql02 sbin]# /usr/local/haproxy-1.6.2/sbin/haproxy -f /usr/local/haproxy-1.6.2/conf/haproxy.cfg
[ALERT] 293/151834 (20139) : Starting proxy admin_stats: cannot bind socket [10.118.242.211:48800]
[ALERT] 293/151834 (20139) : Starting proxy allmycat_service: cannot bind socket [10.118.242.211:8098]
--这里报错需要修改/etc/sysctl.conf 参数
[ALERT] 164/110030 (11606) : Starting proxy linuxyw.com: cannot bind socket
这个问题,其实就是因为你的haproxy没有得到VIP的原因,而你的配置文件又绑定了VIP地址,所以会提示以上错误 当然,你也要确保你的haproxy服务器做了hearbeat或keepalived,绑定VIP,要不就无法高可用了。
解决方法:
修改内核参数: /etc/sysctl.conf
net.ipv4.ip_nonlocal_bind=1
保存结果,使结果生效
sysctl –p
或者使用echo进去,前提是sysctl.conf文件中没有本条参数:
echo 'net.ipv4.ip_nonlocal_bind = 1'>>/etc/sysctl.conf
net.ipv4.ip_nonlocal_bind=1 意思是启动haproxy的时候,允许忽视VIP的存在
传到各个机器
for i in IP1 IP2 IP3 IP4
do scp /etc/hosts $i:/etc;
done
--------MYSQL MY.CNF 配置参数------
[client]
user=martin
password=88888888
[mysqld]
########basic settings########
server-id= 11
port = 3308
user = mysql
bind_address = 10.118.242.209
autocommit = 1
character_set_server=utf8mb4
skip_name_resolve = 1
max_connections = 800
max_connect_errors = 1000
datadir = /data/mysql_data
transaction_isolation =READ-COMMITTED
explicit_defaults_for_timestamp = 1
join_buffer_size = 134217728
tmp_table_size = 67108864
tmpdir = /tmp
max_allowed_packet = 16777216
sql_mode ="STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER"
interactive_timeout = 1800
wait_timeout = 1800
read_buffer_size = 16777216
read_rnd_buffer_size = 33554432
sort_buffer_size = 33554432
########log settings########
log_error = error.log
slow_query_log = 1
slow_query_log_file = slow.log
log_queries_not_using_indexes = 1
log_slow_admin_statements = 1
log_slow_slave_statements = 1
log_throttle_queries_not_using_indexes = 10
expire_logs_days = 90
long_query_time = 2
min_examined_row_limit = 100
########replication settings########
master_info_repository = TABLE
relay_log_info_repository = TABLE
log_bin = bin.log
sync_binlog = 1
gtid_mode = on
enforce_gtid_consistency = 1
log_slave_updates
binlog_format = row
relay_log = relay.log
relay_log_recovery = 1
binlog_gtid_simple_recovery = 1
slave_skip_errors = ddl_exist_errors
########innodb settings########
innodb_page_size = 8192
innodb_buffer_pool_size = 6G
innodb_buffer_pool_instances = 8
innodb_buffer_pool_load_at_startup = 1
innodb_buffer_pool_dump_at_shutdown = 1
innodb_lru_scan_depth = 2000
innodb_lock_wait_timeout = 5
innodb_io_capacity = 4000
innodb_io_capacity_max = 8000
innodb_flush_method = O_DIRECT
innodb_file_format = Barracuda
innodb_file_format_max = Barracuda
innodb_log_group_home_dir = /redolog/
innodb_undo_directory = /undolog/
innodb_undo_logs = 128
innodb_undo_tablespaces = 3
innodb_flush_neighbors = 1
innodb_log_file_size = 4G
innodb_log_buffer_size = 16777216
innodb_purge_threads = 4
innodb_large_prefix = 1
innodb_thread_concurrency = 64
innodb_print_all_deadlocks = 1
innodb_strict_mode = 1
innodb_sort_buffer_size = 67108864
########semi sync replication settings########
plugin_dir=/usr/local/mysql/lib/plugin
plugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so"
loose_rpl_semi_sync_master_enabled = 1
loose_rpl_semi_sync_slave_enabled = 1
loose_rpl_semi_sync_master_timeout = 5000
[mysqld-5.7]
innodb_buffer_pool_dump_pct = 40
innodb_page_cleaners = 4
innodb_undo_log_truncate = 1
innodb_max_undo_log_size = 2G
innodb_purge_rseg_truncate_frequency = 128
log_timestamps=system
transaction_write_set_extraction=MURMUR32
show_compatibility_56=on
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