鲜花拍卖网站建设市场分析,长沙网站设计哪里好,wordpress邮箱找回密码,自己主机做标签电影网站概述 本章节主要介绍配置HaProxyKeepalived高可用群集#xff0c;Mycat的配置就不在这里做介绍#xff0c;可以参考我前面写的几篇关于Mycat的文章。 部署图#xff1a; 配置 HaProxy安装 181和179两台服务器安装haproxy的步骤一致 --创建haproxy用户
useradd haproxy--… 概述 本章节主要介绍配置HaProxyKeepalived高可用群集Mycat的配置就不在这里做介绍可以参考我前面写的几篇关于Mycat的文章。 部署图 配置 HaProxy安装 181和179两台服务器安装haproxy的步骤一致 --创建haproxy用户
useradd haproxy--解压完后进入haproxy目录
cd haproxy-1.4.25/--编译安装
make TARGETlinux26 PREFIX/usr/local/haproxy ARCHx86_64make install PREFIX/usr/local/haproxy HaProxy配置 cd /usr/local/haproxytouch haproxy.cfgvim haproxy.cfg global log 127.0.0.1 local0 ##记日志的功能 maxconn 4096 chroot /usr/local/haproxy user haproxy group haproxy daemon defaults log global option dontlognull retries 3 option redispatch maxconn 2000 contimeout 5000 clitimeout 50000 srvtimeout 50000 listen admin_stats 192.168.57.180:48800 ##统计页面 stats uri /admin-status stats auth admin:admin mode http option httplog listen mycat_service 192.168.57.180:18066 ##客户端就是通过这个ip和端口进行连接这个vip和端口绑定的是mycat8066端口 mode tcp option tcplog option httpchk OPTIONS * HTTP/1.1\r\nHost:\ www balance roundrobin server mycat_181 192.168.57.181:8066 check port 48700 inter 5s rise 2 fall 3 server mycat_179 192.168.57.179:8066 check port 48700 inter 5s rise 2 fall 3 srvtimeout 20000 listen mycat_admin 192.168.57.180:19066 ##客户端就是通过这个ip和端口进行连接这个vip和端口绑定的是mycat9066端口 mode tcp option tcplog option httpchk OPTIONS * HTTP/1.1\r\nHost:\ www balance roundrobin server mycat_181 192.168.57.181:9066 check port 48700 inter 5s rise 2 fall 3 server mycat_179 192.168.57.179:9066 check port 48700 inter 5s rise 2 fall 3 srvtimeout 20000 配置haproxy记录日志功能 yum –y install rsyslogmkdir /etc/rsyslog.dcd /etc/rsyslog.d/touch haproxy.confvim haproxy.conf $ModLoad imudp
$UDPServerRun 514local0.* /var/log/haproxy.log vim /etc/rsyslog.conf 在#### RULES ####上面一行加入以下内容 # Include all config files in /etc/rsyslog.d/$IncludeConfig /etc/rsyslog.d/*.conf 在local7.* /var/log/boot.log下面加入以下内容 local0.* /var/log/haproxy.log 重启rsyslog服务 service rsyslog restart 将rsyslog加入自动启动服务 chkconfig --add rsyslogchkconfig --level 2345 rsyslog on 配置监听mycat是否存活 安装xinetd插件 yum install xinetd -y cd etc service mycat_status
{
flags REUSE
socket_type stream
port 48700wait nouser nobody
server /usr/local/bin/mycat_status
log_on_failure USERID
disable no
} 创建xinetd启动服务脚本 vim /usr/local/bin/mycat_status #!/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 -lif [ $mycat 0 ];then/bin/echo -e HTTP/1.1 200 OK\r\nelse/bin/echo -e HTTP/1.1 503 Service Unavailable\r\n
fi 修改脚本文件权限 我就是在这里被坑了很久,根据权威指南上面mycat_status这个脚本里面的内容也有很多问题好几个地方没有空格. chmod 777 /usr/local/bin/mycat_status
chmod 777 /etc/xinetd.d/mycat_status 将启动脚本加入服务 vim /etc/services 在末尾加入 mycat_status 48700/tcp # mycat_status 重启xinetd服务 service xinetd restart 将xinetd加入自启动服务 chkconfig --add xinetdchkconfig --level 2345 xinetd on 页面测试 http://192.168.57.180:48800/admin-status 由于179还没有安装好所以这里179显示连接失败 创建haproxy启停脚本 启动脚本 touch /usr/local/haproxy/sbin/start
chmod x /usr/local/haproxy/sbin/start
vim /usr/local/haproxy/sbin/start #!/bin/sh/usr/local/haproxy/sbin/haproxy -f /usr/local/haproxy/haproxy.cfg 关闭脚本 touch /usr/local/haproxy/sbin/stop
chmod x /usr/local/haproxy/sbin/stop
vim /usr/local/haproxy/sbin/stop #!/bin/sh
ps -ef | grep sbin/haproxy | grep -v grep |awk {print $2}|xargs kill -s 9 授权 chown -R haproxy.haproxy /usr/local/haproxy/* Keepalived安装步骤 keepalived的安装步骤过程在两台服务器上除了keepalived.conf配置文件稍微有点区别外其他的地方都一致。 openssl安装 ./config --prefix/usr/local/openssl./config -t
make depend
make
make test
make install
ln -s /usr/local/openssl /usr/local/sslvim /etc/ld.so.conf 在文件末尾加入以下内容 /usr/local/openssl/lib 修改环境变量 vim /etc/profile 在文件末尾加入以下内容 export OPENSSL/usr/local/openssl/bin
export PATH$PATH:$OPENSSL 使环境变量立刻生效 source /etc/profile 安装openssl-devel yum install openssl-devel -y 测试 ldd /usr/local/openssl/bin/openssl vdso.so. ( lib64libdl.so. ( lib64libc.so. (lib64ldlinuxx86.so. ( which openssl /usr/bin/openssl openssl version OpenSSL 1.0.0-fips 29 Mar 2010 keepalived安装 ./configure --prefix/usr/local/keepalivedmake
make install
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/mkdir /etc/keepalived
cd /etc/keepalived/cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived
mkdir -p /usr/local/keepalived/var/log 创建配置文件和脚本 mkdir etckeepalivedscriptscd /etc/keepalived/scripts vim /etc/keepalived/keepalived.conf master ! Configuration Fileforkeepalived
vrrp_script chk_http_port {
script/etc/keepalived/scripts/check_haproxy.sh
interval 2weight 2}
vrrp_instance VI_1 {
state MASTER #192.168.57.179上改为BACKUP
interface eth0 #对外提供服务的网络接口
virtual_router_id 51 #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 150 #数值愈大优先级越高,backup上改为120
advert_int 1 #同步通知间隔
authentication { #包含验证类型和验证密码。类型主要有PASS、AH两种通常使用的类型为PASS据说AH使用时有问题
auth_type PASS
auth_pass 1111}
track_script {
chk_http_port #调用脚本check_haproxy.sh检查haproxy是否存活
}
virtual_ipaddress { #vip地址haproxy配置的使用的就是这里配置的VIP192.168.57.180 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
} backup ! Configuration Fileforkeepalived
vrrp_script chk_http_port {
script/etc/keepalived/scripts/check_haproxy.sh
interval 2weight 2}
vrrp_instance VI_1 {
state BACKUP #192.168.57.179上改为BACKUP
interface eth0 #对外提供服务的网络接口
virtual_router_id 51 #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 #数值愈大优先级越高,backup上改为120
advert_int 1 #同步通知间隔
authentication { #包含验证类型和验证密码。类型主要有PASS、AH两种通常使用的类型为PASS据说AH使用时有问题
auth_type PASS
auth_pass 1111}
track_script {
chk_http_port #调用脚本check_haproxy.sh检查haproxy是否存活
}
virtual_ipaddress { #vip地址192.168.57.180 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
} vim /etc/keepalived/scripts/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
Aps -C haproxy --no-header |wc -lecho [check_haproxy status] $LOGFILE
date $LOGFILEif [ $A -eq 0 ];thenecho $STARTHAPROXY $LOGFILE
$STARTHAPROXY $LOGFILE 21sleep 5
fiif [ ps -C haproxy --no-header |wc -l -eq 0 ];thenexit 0elseexit 1fi vim /etc/keepalived/scripts/haproxy_master.sh #!binusrlocalhaproxysbinhaproxy f usrlocalhaproxyusrlocalkeepalivedkeepalivedhaproxystate. $LOGFILE $LOGFILE $LOGFILE $LOGFILE $LOGFILE $LOGFILE vim /etc/keepalived/scripts/haproxy_backup.sh #!/bin/bash
STARTHAPROXY/usr/local/haproxy/sbin/haproxy -f /usr/local/haproxy/haproxy.cfg
STOPHAPROXYps -ef | grep sbin/haproxy | grep -v grep | awk {print $2}| xargs kill -s 9
LOGFILE/usr/local/keepalived/var/log/keepalived-haproxy-state.log
echo [backup] $LOGFILE
date $LOGFILE
echo Being backup.... $LOGFILE 21echo stop haproxy.... $LOGFILE 21$STOPHAPROXY $LOGFILE 21echo start haproxy.... $LOGFILE 21$STARTHAPROXY $LOGFILE 21echo haproxy stared ... $LOGFILE vim /etc/keepalived/scripts/haproxy_fault.sh #!/bin/bash
LOGFILE/usr/local/keepalived/var/log/keepalived-haproxy-state.logecho [fault] $LOGFILE
date $LOGFILE vim /etc/keepalived/scripts/haproxy_stop.sh #!/bin/bash
LOGFILE/usr/local/keepalived/var/log/keepalived-haproxy-state.logecho [stop] $LOGFILE
date $LOGFILE 赋予脚本可执行权限 chmod 777 /etc/keepalived/scripts/* 将keepalived加入自启动服务 chkconfig --add keepalivedchkconfig --level 2345 keepalived on--启动服务service keepalived start 总结 权威指南上面代码部分好多处都存在问题几乎每一块代码都存在问题有时候往往一个空格需要花很长的时间去找这个问题所以在代码方面要细心特别是复制别人的代码不要原本照抄最好是检查一下除了代码本身的问题权限有时候也是容易忽略的错误特别是可执行文件要注意是否有可执行权限。 本文转自 Mr_sheng 51CTO博客原文链接:http://blog.51cto.com/sf1314/2073257
