使用HeartBeat实现高可用HA的配置。HA即(high available)高可用,又被叫做双机热备,用于关键性业务。简单理解就是,有2台机器 A 和 B,正常是 A 提供服务,B 待命闲置,当 A 宕机或服务宕掉,会切换至B机器继续提供服务。常见的实现高可用的开源软件有 heartbeat 和 keepalived。


镭速(Raysync)文件传输高可用部署介绍!_第1张图片


一、准备实验环境


服务器A:

主机名:Master01

操作系统:CentOS6.8 64位

eth0网卡地址:10.60.196.178


服务器B:

主机名:Slave01

操作系统:CentOS6.8 64位

eth0网卡地址:10.60.196.179

虚拟VIP:

VIP:10.60.196.180


二、设置主机名


master节点设置hostname

hostname Master01 vim /etc/sysconfig/network 编辑配置文件:HOSTNAME=Master01

vim /etc/hosts


编辑配置文件:

10.60.196.178 Master01

10.60.196.179 Slave01

# vim /etc/sysconfig/network 编辑配置文件:HOSTNAME=Master01

slave节点设置hostname

# hostname Slave01

vim /etc/hosts


编辑配置文件:

10.60.196.178 Master01

10.60.196.179 Slave01# vim /etc/sysconfig/network 编辑配置文件:HOSTNAME=Slave01


三、关闭2台服务器的防火墙


关闭iptables

# iptables -F # service iptables save # service iptables stop

关闭selinux:

# setenforce 0 # sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config


四、安装heartbeat (2台都操作)


# yum install -y epel-release

# yum install -y heartbeat* libnet


五、主Master01节点配置


1、拷贝配置文件:

# cd /usr/share/doc/heartbeat-3.0.4/ # cp authkeys ha.cf haresources /etc/ha.d/ # cd /etc/ha.d


2、修改authkeys:

# vim authkeys 更改或增加如下内容: auth 33 md5 Hello!然后修改其权限 # chmod 600 authkeys


3、编辑haresources文件:

# vim haresources加入下面一行:Master01  10.60.196.180/24/eth0:0  raysync

说明:master为主节点hostname,10.60.196.180为vip,/24为掩码为24的网段,eth0:0为vip的设备名,httpd为heartbeat监控的服务,也是两台机器对外提供的核心服务。改行指定在启动时,节点得到vip,并启动httpd,在停止时heartbeat首先停止httpd,然后释放vip。


4、编辑ha.cf:

# vim ha.cf 修改为如下内容:

logfile /var/log/ha-log

logfacility local0

keepalive 2

deadtime 30

warntime 10

initdead 120

udpport 694

ucast eth0 10.60.196.179

auto_failback on

node Master01

node Slave01

ping 10.60.196.254

respawn hacluster /usr/lib64/heartbeat/ipfail


5、配置说明:

logfile /var/log/ha-log:heartbeat的日志文件。

keepalive 2:心跳的时间间隔,默认时间单位为秒s。

deadtime 30:超出该时间间隔未收到对方节点的心跳,则认为对方已经死亡。

warntime 10:超出该时间间隔未收到对方节点的心跳,则发出警告并记录到日志中。

initdead 120:在某系统上,系统启动或重启之后需要经过一段时间网络才能正常工作,该选项用于解决这种情况产生的时间间隔,取值至少为deadtime的2倍。

udpport 694:设置广播通信使用的端口,694为默认使用的端口号。

ucast eth0 10.60.196.179:设置对方机器心跳检测的网卡和IP。

auto_failback on:heartbeat的两台主机分别为主节点和从节点。主节点在正常情况下占用资源并运行所有的服务,遇到故障时把资源交给从节点由从节点运行服务。在该选项设为on的情况下,一旦主节点恢复运行,则自动获取资源并取代从节点,否则不取代从节点。

respawn heartbeat /usr/lib/heartbeat/ipfail:指定与heartbeat一同启动和关闭的进程,该进程被自动监视,遇到故障则重新启动。最常用的进程是ipfail,该进程用于检测和处理网络故障,需要配合ping语句指定的ping node来检测网络连接。如果你的系统是64bit,请注意该文件的路径。


六、把主节点上的三个配置文件拷贝到从节点


# cd /etc/ha.d # scp authkeys ha.cf haresources root@Slave01:/etc/ha.d


七、从节点slave编辑ha.cf


# vim /etc/ha.d/ha.cf 

只需要更改一个地方如下:ucast eth0 10.60.196.179改为ucast eth0 10.60.196.180


八、启动heartbeat服务


配置完毕后,先Master01启动,后Slave01启动。

# service heartbeat start


九、更改vip路由脚本


1、创建routecheck.sh脚本


vim /root/bin/routecheck.sh

#!/bin/bash

source /etc/profile

for((i=1;i<=30;i++))

do

ifconfig|grep eth0:0

a=$?

ip route show |grep 10.60.196.180

b=$?

ip route show|grep 10.60.196.254

c=$?

#vip存在,且vip没有路由就更改路由

if [[ $a == 0 ]] && [[ $b != 0 ]];then

route del  default gw 10.60.196.254  && ip route add 0.0.0.0/0 via 10.60.196.254 dev eth0  src 10.60.196.180

fi

#vip不存在,默认网关不存在就重启网卡

if [[ $a != 0 ]] && [[ $c != 0 ]];then

ip route add 0.0.0.0/0 via 10.60.196.254 dev eth0

fi

sleep 2

done


2、定时运行


crontab -e

*/1 * * * * bash /root/bin/routecheck.sh > /dev/null


十、RaySync自启动脚本


cat /etc/init.d/raysync

#!/bin/bash

#

# description: setup RaySync service

# Version: 0.1.0

# Date: 2018-02-06

# Author: lirou

#


# chkconfig: - 87 17

source /etc/profile

. /etc/rc.d/init.d/functions


set -e

#set -x

export.UTF-8

export LC_ALL=en_US.UTF-8


if [ $# -ne 1 ];then

echo "Error Usage: service $(basename $0) [ start | stop | status | restart ]"

exit 3


fi


BASE_DIR=

PID_DIR=


if [[ "x$BASE_DIR" == "x" ]];then

BASE_DIR=/opt/RaySync

fi


RAYSYNC_CONF=$BASE_DIR/config/config.ini


if ! [ -d $(dirname $RAYSYNC_CONF) ];then

install -d -m 755 $(dirname $RAYSYNC_CONF)

fi



if [[ "x$PID_DIR" == "x" ]];then

PID_DIR=/var/run/raysync

mkdir -pv $PID_DIR &>/dev/null

fi


#MONITOR_PID=$PID_DIR/monitor.pid

MONITOR_LOCKFILE=$PID_DIR/monitor.lock

RAYSYNC_SERVER_LOCKFILE=$PID_DIR/raysync-server.lock

RAYSYNC_PROXY_SERVER_LOCKFILE=$PID_DIR/raysync-proxy.lock


MONITOR_BIN_NAME=

RAYSYNC_SERVER_BIN_NAME=

RAYSYNC_PROXY_SERVER_BIN_NAME=


if [[ "x$MONITOR_BIN_NAME" == "x" ]];then

MONITOR_BIN_NAME=monitor

fi


if [[ "x$RAYSYNC_SERVER" == "x" ]];then

RAYSYNC_SERVER_BIN_NAME=RaySyncServer

fi


if [[ "x$RAYSYNC_PROXY_SERVER" == "x" ]];then

RAYSYNC_PROXY_SERVER_BIN_NAME=RaySync-Proxy-Server

fi


start() {

if ! [ -s $RAYSYNC_CONF ];then

echo "Error: don't have configure file in $RAYSYNC_CONF path."

fi


if ! [ -f $MONITOR_LOCKFILE ]; then

# nohup ${BASE_DIR}/${MONITOR_BIN_NAME} &>/dev/null &

nohup ${BASE_DIR}/${MONITOR_BIN_NAME} >/dev/null 2>&1 &

sleep 1

if [[ "x$(ps aux | grep -i monitor | grep -v -i grep )" == "x" ]];then

echo -e "monitor setup fail" && failure

else

touch $MONITOR_LOCKFILE

fi

fi

echo -e " monitor is running: " && success


if ! [ -f $RAYSYNC_SERVER_LOCKFILE ];then

nohup $BASE_DIR/RaySyncServer >/dev/null 2&>1 &

sleep 1

if [[ "x$(ps aux | grep RaySyncServer | grep -v -i 'grep' )" == "x" ]];then

echo -e "RaySyncServer setup fail" && failure

else

touch $RAYSYNC_SERVER_LOCKFILE

fi

fi

echo -e " RaySyncServer is running" && success


if ! [ -f $RAYSYNC_PROXY_SERVER_LOCKFILE ];then

#nohup $BASE_DIR/proxy/$RAYSYNC_PROXY_SERVER_BIN_NAME >/dev/null 2&>1

#echo "nohup $BASE_DIR/proxy/$RAYSYNC_PROXY_SERVER_BIN_NAME >/dev/null 2&>1"

sleep 1

if [[ "x$(ps aux | grep RaySync-Proxy-Server )" == "x" ]];then

echo -e "RaySync-Proxy-Server setup fail" && failure

else

touch $RAYSYNC_PROXY_SERVER_LOCKFILE

fi

fi

echo -e " RaySync-Proxy-Server is running" && success

}


stop() {

if [ -f $MONITOR_LOCKFILE ];then

# killall $MONITOR_BIN_NAME

ps -ef|grep Ray|grep -v grep|awk '{print $2}'|xargs kill -9 >/dev/null 2&>1

rm -f $MONITOR_LOCKFILE

fi

echo -e "monitor stopped" && success


if [ -f $RAYSYNC_SERVER_LOCKFILE ];then

#kill $(echo $RAYSYNC_SERVER_PID)

# killall $RAYSYNC_SERVER_BIN_NAME

ps -ef|grep Ray|grep -v grep|awk '{print $2}'|xargs kill -9 >/dev/null 2&>1

rm -f $RAYSYNC_SERVER_LOCKFILE

fi

echo -e "RaySyncServer stopped" && success


# result_Proxy=`ps -ef|grep ${RAYSYNC_PROXY_SERVER_BIN_NAME}|grep -v grep`

# if [ -f $RAYSYNC_PROXY_SERVER_LOCKFILE ] || [ $result_Proxy != "" ];then

if [ -f $RAYSYNC_PROXY_SERVER_LOCKFILE ];then

ps -ef|grep Ray|grep -v grep|awk '{print $2}'|xargs kill -2 >/dev/null 2&>1

echo ${RAYSYNC_PROXY_SERVER_BIN_NAME}

rm -f $RAYSYNC_PROXY_SERVER_LOCKFILE

fi

echo -e "RaySync-Proxy-Server stopped" && success

}


status() {

if [ -f $MONITOR_LOCKFILE ];then

echo " monitor is running"

else

echo " monitor stopped"

fi


if [ -f $RAYSYNC_SERVER_LOCKFILE ];then

echo " RaySyncServer is running"

else

echo " RaySyncServer stopped"

fi


if [ -f $RAYSYNC_PROXY_SERVER_LOCKFILE ];then

echo " RaySync-Proxy-Server is running"

else

echo " RaySync-Proxy-Server stopped"

fi

}


case $1 in

start)

start

;;

stop)

stop

;;

status)

status

;;

restart)

stop

sleep 2

start

;;

*)

echo "Error Usage: service $(basename $0) [ start | stop | status | restart ]"

exit 3

esac


以上是关于镭速(Raysync)文件传输软件的高可用安装部署详细介绍!