https://www.809508860.xyz/tags/lvs/ Recent content in Lvs on Colben Notes Hugo zh-cn Wed, 30 Oct 2019 12:55:50 +0800 https://www.809508860.xyz/post/lvs/ Wed, 30 Oct 2019 12:55:50 +0800 https://www.809508860.xyz/post/lvs/ <h2 id="环境">环境</h2> <table> <thead> <tr> <th>角色</th> <th>地址</th> </tr> </thead> <tbody> <tr> <td>负载分配服务器</td> <td>192.168.1.209</td> </tr> <tr> <td>tomcat 服务器1</td> <td>192.168.1.207</td> </tr> <tr> <td>tomcat 服务器2</td> <td>192.168.1.208</td> </tr> <tr> <td>VIP</td> <td>192.168.1.250</td> </tr> </tbody> </table> <h2 id="lvs-dr">LVS-DR</h2> <ul> <li>配置负载分配服务器(192.168.1.209) <div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt"> 1 </span><span class="lnt"> 2 </span><span class="lnt"> 3 </span><span class="lnt"> 4 </span><span class="lnt"> 5 </span><span class="lnt"> 6 </span><span class="lnt"> 7 </span><span class="lnt"> 8 </span><span class="lnt"> 9 </span><span class="lnt">10 </span><span class="lnt">11 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1">#在与 tomcat 服务器连通的网卡(eth0)上配置虚拟 IP(192.168.1.250)</span> </span></span><span class="line"><span class="cl">ip addr add 192.168.1.250/32 brd 192.168.1.250 dev eth0 </span></span><span class="line"><span class="cl">ip route add 192.168.1.250 dev eth0 </span></span><span class="line"><span class="cl"><span class="c1">#开启转发</span> </span></span><span class="line"><span class="cl"><span class="nb">echo</span> <span class="m">1</span> &gt; /proc/sys/net/ipv4/ip_forward </span></span><span class="line"><span class="cl"><span class="c1">#安装 ipvsadm</span> </span></span><span class="line"><span class="cl">yum install ipvsadm </span></span><span class="line"><span class="cl">ipvsadm -C </span></span><span class="line"><span class="cl">ipvsadm -A -t 192.168.1.250:80 -s rr </span></span><span class="line"><span class="cl">ipvsadm -a -t 192.168.1.250:80 -r 192.168.1.207:80 -g </span></span><span class="line"><span class="cl">ipvsadm -a -t 192.168.1.250:80 -r 192.168.1.208:80 -g </span></span></code></pre></td></tr></table> </div> </div></li> <li>在两台 tomcat 服务器上都做如下配置 <div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span><span class="lnt">2 </span><span class="lnt">3 </span><span class="lnt">4 </span><span class="lnt">5 </span><span class="lnt">6 </span><span class="lnt">7 </span><span class="lnt">8 </span><span class="lnt">9 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1">#禁用 arp 响应</span> </span></span><span class="line"><span class="cl"><span class="nb">echo</span> <span class="s2">&#34;1&#34;</span> &gt;/proc/sys/net/ipv4/conf/lo/arp_ignore </span></span><span class="line"><span class="cl"><span class="nb">echo</span> <span class="s2">&#34;2&#34;</span> &gt;/proc/sys/net/ipv4/conf/lo/arp_announce </span></span><span class="line"><span class="cl"><span class="nb">echo</span> <span class="s2">&#34;1&#34;</span> &gt;/proc/sys/net/ipv4/conf/all/arp_ignore </span></span><span class="line"><span class="cl"><span class="nb">echo</span> <span class="s2">&#34;2&#34;</span> &gt;/proc/sys/net/ipv4/conf/all/arp_announce </span></span><span class="line"><span class="cl"><span class="c1">#添加虚拟 IP</span> </span></span><span class="line"><span class="cl">ip addr add 192.168.1.250/32 brd 192.168.1.250 dev lo </span></span><span class="line"><span class="cl">ip route add 192.168.1.250 dev lo </span></span><span class="line"><span class="cl"><span class="c1">#在个人浏览器中访问 http://192.168.1.250/webapp/</span> </span></span></code></pre></td></tr></table> </div> </div></li> </ul>