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src="https://cdn.wpsshop.cn/public/wpsshopindex/js/mid_detail_last.js?v=33890"></script><style type="text/css"></style><script type="text/javascript"></script><div class="interactive_info" id="body-data-0098" attrv="51042"></div><div class="article_box" style="overflow: hidden;"><div class="article_channel"><div class="channel_top_line"><div class="cn_t_l"></div><div class="cn_t_r"></div></div><div class="article_channel_info">当前位置: <a href="/article/list/1">article</a> > 正文 </div></div><div class="article_title"><h1>hadoop集群搭建（详细过程）_真机搭配hadoop集群</h1></div><div class="article_info"><div class="article_c_info"> 作者：盐析白兔 | 2024-05-31 07:16:52</div><div class="article_click" style="width: 140px;"><p class="operation-b-img operation-b-img-active"><i class="img-up txclick" attc="upclick" attn="0"></i><span class="num"> 赞</span></p><p class="operation-b-img operation-b-img-active"><i class="img-down txclick" attc="downclick" attn="0"></i><span class="num">踩</span></p></div></div><div class="article_intro">真机搭配hadoop集群</div><div class="article_content article_contentheight"> <link rel="stylesheet" href="https://csdnimg.cn/release/blogv2/dist/mdeditor/css/editerView/kdoc_html_views-1a98987dfd.css"> <link rel="stylesheet" href="https://csdnimg.cn/release/blogv2/dist/mdeditor/css/editerView/ck_htmledit_views-044f2cf1dc.css"> <div id="content_views" class="markdown_views prism-atom-one-dark"> <svg xmlns="http://www.w3.org/2000/svg" style="display: none;"> <path stroke-linecap="round" d="M5,0 0,2.5 5,5z" id="raphael-marker-block" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0);"></path> </svg> <p></p> <div class="toc"> <h4><a name="t0"></a><a href="https://so.csdn.net/so/search?q=hadoop&spm=1001.2101.3001.7020" target="" class="hl hl-1" data-report-click="{"spm":"1001.2101.3001.7020","dest":"https://so.csdn.net/so/search?q=hadoop&spm=1001.2101.3001.7020","extra":"{\"searchword\":\"hadoop\"}"}" data-tit="hadoop" data-pretit="hadoop">hadoop</a>集群搭建</h4> <ul><li><a href="#_2" rel="nofollow" target="_self">创建虚拟机</a></li><li><ul><li><a href="#_15" rel="nofollow" target="_self">修改机器名</a></li><li><a href="#_35" rel="nofollow" target="_self">添加域名映射</a></li></ul> </li><li><a href="#xshell_51" rel="nofollow" target="_self">使用xshell登录虚拟机</a></li><li><ul><li><a href="#jdk3_66" rel="nofollow" target="_self">安装jdk（3台虚拟机都要安装）</a></li><li><ul><li><a href="#openjdk_74" rel="nofollow" target="_self">删除openjdk</a></li><li><a href="#jdk_83" rel="nofollow" target="_self">安装jdk，配置环境变量</a></li></ul> </li><li><a href="#hadoop_117" rel="nofollow" target="_self">安装hadoop，配置环境变量</a></li><li><ul><li><a href="#hadoop_121" rel="nofollow" target="_self">配置hadoop环境变量</a></li></ul> </li><li><a href="#hadoop_131" rel="nofollow" target="_self">配置hadoop文件信息、</a></li><li><ul><li><a href="#hadoopjava_133" rel="nofollow" target="_self">修改hadoop的java环境</a></li><li><a href="#hadoopcore_141" rel="nofollow" target="_self">配置hadoop的core文件</a></li></ul> </li><li><a href="#master_159" rel="nofollow" target="_self">格式化主节点（只master节点）</a></li><li><a href="#hdfs_168" rel="nofollow" target="_self">启动hdfs</a></li></ul> </li><li><a href="#_177" rel="nofollow" target="_self">最后</a></li></ul> </div> <p></p> <h2><a name="t1"></a><a id="_2"></a>创建虚拟机</h2> <p>这里可以使用真机，也可用虚拟机创建。这里以虚拟机为例说明。在<a href="https://so.csdn.net/so/search?q=VMware&spm=1001.2101.3001.7020" target="_blank" class="hl hl-1" data-report-view="{"spm":"1001.2101.3001.7020","dest":"https://so.csdn.net/so/search?q=VMware&spm=1001.2101.3001.7020","extra":"{\"searchword\":\"VMware\"}"}" data-report-click="{"spm":"1001.2101.3001.7020","dest":"https://so.csdn.net/so/search?q=VMware&spm=1001.2101.3001.7020","extra":"{\"searchword\":\"VMware\"}"}" data-tit="VMware" data-pretit="vmware">VMware</a>中创建3台虚拟机，这里操作系统是Centos7。<br> 虚拟机创建在此省略。<br> 这里需要对配置网络连接与ip地址等，在此不做详细介绍。<br> <strong>确保可以NAT上网</strong></p> <p><strong>关闭防火墙</strong></p> <pre data-index="0" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">systemctl disable firewalld 重启关闭生效 systemctl status firewalld 检查状态 <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li><li style="color: rgb(153, 153, 153);">2</li></ul></pre> <p>提示：可先创建一台，之后克隆2台。</p> <h3><a name="t2"></a><a id="_15"></a>修改机器名</h3> <p>当然也可不修改，但为了以后的方便，推荐修改。<br> <strong>以root角色登录，修改</strong><br> 首先查看机器名</p> <pre data-index="1" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">hostname <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <p>修改机器名</p> <pre data-index="2" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">hostnamectl <span class="token function">set</span><span class="token operator">-</span>hostname 修改的名字 <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <p>3台机器分别改为master，slave1，slave2</p> <p>修改后重启</p> <pre data-index="3" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">reboot <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <h3><a name="t3"></a><a id="_35"></a>添加域名映射</h3> <p>3台虚拟机都编辑 /etc/hosts 文件<br> 在末尾添加</p> <pre data-index="4" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">master的ip地址 master slave1的ip地址 slave1 slave2的ip地址 slave2 真机的ip地址真机名（看你心意） <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li><li style="color: rgb(153, 153, 153);">2</li><li style="color: rgb(153, 153, 153);">3</li><li style="color: rgb(153, 153, 153);">4</li></ul></pre> <p>在真机中添加映射<br> 以管理员身份运行记事本<br> <img src="https://img-blog.csdnimg.cn/20201122153620607.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0ODYzMzI5,size_16,color_FFFFFF,t_70#pic_center" alt="在这里插入图片描述"><br> 打开文件路径：<strong>C:Window/system32/drivers/etc/hosts</strong><br> 在etc中若是没看见hosts，在下面选择所以文件：<br> <img src="https://img-blog.csdnimg.cn/20201122153849162.png#pic_center" alt="在这里插入图片描述"></p> <h2><a name="t4"></a><a id="xshell_51"></a>使用<a href="https://so.csdn.net/so/search?q=xshell&spm=1001.2101.3001.7020" target="_blank" class="hl hl-1" data-report-view="{"spm":"1001.2101.3001.7020","dest":"https://so.csdn.net/so/search?q=xshell&spm=1001.2101.3001.7020","extra":"{\"searchword\":\"xshell\"}"}" data-report-click="{"spm":"1001.2101.3001.7020","dest":"https://so.csdn.net/so/search?q=xshell&spm=1001.2101.3001.7020","extra":"{\"searchword\":\"xshell\"}"}" data-tit="xshell" data-pretit="xshell">xshell</a>登录虚拟机</h2> <p>将准备好的hadoop，jdk使用传输工具上传到虚拟机上<br> <img src="https://img-blog.csdnimg.cn/20201122154620716.png#pic_center" alt="在这里插入图片描述"><br> 在虚拟机创建一个文件夹<strong>soft</strong>，存放上面两个文件。</p> <pre data-index="5" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">mkdir <span class="token operator">/</span>opt<span class="token operator">/</span>soft <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <p>将上述两个文件循环拷贝到所有从节点（如果有多个，方便）<br> <code>machines</code>文件中是子节点，内容如下</p> <blockquote> <p>slave1<br> slave2</p> </blockquote> <p>执行如下命令（拷贝jdk）：<br> for x in <code>cat machines</code>;do echo $x;scp jdk-8u101-linux-x64.rpm $x:/opt/soft;done</p> <h3><a name="t5"></a><a id="jdk3_66"></a>安装jdk（3台虚拟机都要安装）</h3> <p>检查java版本</p> <pre data-index="6" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">java <span class="token operator">-</span>version <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <p>显示如下内容：<br> <img src="https://img-blog.csdnimg.cn/20201122121426529.png#pic_center" alt="在这里插入图片描述"></p> <h4><a name="t6"></a><a id="openjdk_74"></a>删除openjdk</h4> <pre data-index="7" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">rpm <span class="token operator">-</span>qa <span class="token punctuation">|</span> grep java 查看 rpm <span class="token operator">-</span>e <span class="token operator">--</span>nodeps xxxxxx 删除 <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li><li style="color: rgb(153, 153, 153);">2</li></ul></pre> <p>查看openjdk文件<br> <img src="https://img-blog.csdnimg.cn/20201122121500706.png#pic_center" alt="在这里插入图片描述"><br> 依次删除上述4个openjdk<br> <img src="https://img-blog.csdnimg.cn/20201122121606385.png#pic_center" alt="在这里插入图片描述"></p> <h4><a name="t7"></a><a id="jdk_83"></a>安装jdk，配置环境变量</h4> <p>提示：3台虚拟机都如此操作</p> <pre data-index="8" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">tar <span class="token operator">-</span>zxvf jdk<span class="token operator">-</span>8u271<span class="token operator">-</span>linux<span class="token operator">-</span>x64<span class="token punctuation">.</span>tar<span class="token punctuation">.</span>gz <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <p>出现如下文件<br> <img src="https://img-blog.csdnimg.cn/20201122160417243.png#pic_center" alt="在这里插入图片描述"></p> <p>由于文件带jdk版本号，在此为了方便为其添加一个软链接</p> <pre data-index="9" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">ln <span class="token operator">-</span>s jdk1<span class="token punctuation">.</span>8<span class="token punctuation">.</span>0_271 jdk <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <p><img src="https://img-blog.csdnimg.cn/2020112216043824.png#pic_center" alt="在这里插入图片描述"><br> <img src="https://img-blog.csdnimg.cn/20201122160557312.png#pic_center" alt="在这里插入图片描述"><br> 配置jdk环境变量：</p> <pre data-index="10" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">vim <span class="token operator">/</span>etc<span class="token operator">/</span>profile <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <p>在最后添加</p> <pre data-index="11" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">export JAVA_HOME=（jdk的路径） export PATH=<span class="token variable">$PATH</span>:<span class="token variable">$JAVA_HOME</span><span class="token operator">/</span>bin <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li><li style="color: rgb(153, 153, 153);">2</li></ul></pre> <p>保存后，<strong>重新编译</strong>profile文件</p> <pre data-index="12" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">source <span class="token operator">/</span>etc<span class="token operator">/</span>profile <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <p>此时，查看java<br> <img src="https://img-blog.csdnimg.cn/20201122161012272.png#pic_center" alt="在这里插入图片描述"></p> <h3><a name="t8"></a><a id="hadoop_117"></a>安装hadoop，配置环境变量</h3> <p>提示，3台虚拟机都配置安装<br> <strong>hadoop安装，与jdk一致</strong><br> <img src="https://img-blog.csdnimg.cn/20201122161254768.png#pic_center" alt="在这里插入图片描述"></p> <h4><a name="t9"></a><a id="hadoop_121"></a>配置hadoop环境变量</h4> <p>修改/etc/proflie文件<br> 末尾添加：</p> <pre data-index="13" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">export HADOOP_HOME=<span class="token punctuation">(</span>hadoop文件路径<span class="token punctuation">)</span> export PATH=<span class="token variable">$PATH</span>:<span class="token variable">$HADOOP_HOME</span><span class="token operator">/</span>bin:<span class="token variable">$HADOOP_HOME</span><span class="token operator">/</span>sbin <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li><li style="color: rgb(153, 153, 153);">2</li></ul></pre> <p>验证hadoop安装成功<br> <img src="https://img-blog.csdnimg.cn/20201122173314389.png#pic_center" alt="在这里插入图片描述"></p> <h3><a name="t10"></a><a id="hadoop_131"></a>配置hadoop文件信息、</h3> <p>3台虚拟机都配置</p> <h4><a name="t11"></a><a id="hadoopjava_133"></a>修改hadoop的java环境</h4> <p>进入hadoop文件：<br> <img src="https://img-blog.csdnimg.cn/20201122173734391.png#pic_center" alt="在这里插入图片描述"><br> 进入etc/hadoop<br> <img src="https://img-blog.csdnimg.cn/20201122173807915.png#pic_center" alt="在这里插入图片描述"><img src="https://img-blog.csdnimg.cn/20201122173850787.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0ODYzMzI5,size_16,color_FFFFFF,t_70#pic_center" alt="在这里插入图片描述"><br> 修改<code>hadoop-env.sh</code>文件<br> <img src="https://img-blog.csdnimg.cn/20201122174031151.png#pic_center" alt="在这里插入图片描述"><br> 这里有的会出现问题，若有问题，可将写jdk的详细路径。</p> <h4><a name="t12"></a><a id="hadoopcore_141"></a>配置hadoop的core文件</h4> <p>编辑<code>core-site.xml</code>文件。</p> <pre data-index="14" class="set-code-show prettyprint"><code class="prism language-xml has-numbering" onclick="mdcp.signin(event)" style="position: unset;"><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>configuration</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>property</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>name</span><span class="token punctuation">></span></span>hadoop.tmp.dir<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>name</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>value</span><span class="token punctuation">></span></span>/Cloud1<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>value</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>property</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>property</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>name</span><span class="token punctuation">></span></span>fs.defaultFS<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>name</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>value</span><span class="token punctuation">></span></span>hdfs://master:8020<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>value</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>property</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>configuration</span><span class="token punctuation">></span></span> <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li><li style="color: rgb(153, 153, 153);">2</li><li style="color: rgb(153, 153, 153);">3</li><li style="color: rgb(153, 153, 153);">4</li><li style="color: rgb(153, 153, 153);">5</li><li style="color: rgb(153, 153, 153);">6</li><li style="color: rgb(153, 153, 153);">7</li><li style="color: rgb(153, 153, 153);">8</li><li style="color: rgb(153, 153, 153);">9</li><li style="color: rgb(153, 153, 153);">10</li><li style="color: rgb(153, 153, 153);">11</li><li style="color: rgb(153, 153, 153);">12</li><li style="color: rgb(153, 153, 153);">13</li></ul></pre> <h3><a name="t13"></a><a id="master_159"></a>格式化主节点（只master节点）</h3> <p><code>注意！！！格式化只可一次！！！</code><br> 多次格式化会有问题！！！<br> 回到hadoop文件，进入bin<br> <img src="https://img-blog.csdnimg.cn/20201122174854855.png#pic_center" alt="在这里插入图片描述"><br> 格式化主节点</p> <pre data-index="15" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">hdfs namenode <span class="token operator">-</span>format <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <h3><a name="t14"></a><a id="hdfs_168"></a>启动hdfs</h3> <p>回到hadoop，进入sbin文件</p> <pre data-index="16" class="set-code-show prettyprint"><code class="prism language-powershell has-numbering" onclick="mdcp.signin(event)" style="position: unset;">hadoop<span class="token operator">-</span>daemon<span class="token punctuation">.</span>sh <span class="token function">start</span> namenode <div class="hljs-button signin active" data-title="登录复制" data-report-click="{"spm":"1001.2101.3001.4334"}"></div></code><ul class="pre-numbering" style=""><li style="color: rgb(153, 153, 153);">1</li></ul></pre> <p>查看进程，存在NameNode节点<br> <img src="https://img-blog.csdnimg.cn/2020112217520795.png#pic_center" alt="在这里插入图片描述"><br> <img src="https://img-blog.csdnimg.cn/20201122175310715.png#pic_center" alt="在这里插入图片描述"><img src="https://img-blog.csdnimg.cn/20201122175328905.png#pic_center" alt="在这里插入图片描述"></p> <h2><a name="t15"></a><a id="_177"></a>最后</h2> <p>在浏览器登录<code>http://master:50070</code><br> <img src="https://img-blog.csdnimg.cn/20201122175500949.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0ODYzMzI5,size_16,color_FFFFFF,t_70#pic_center" alt="在这里插入图片描述"><br> 可以看到存在两个Datanode节点。</p> </div><div data-report-view="{"mod":"1585297308_001","spm":"1001.2101.3001.6548","dest":"https://blog.csdn.net/qq_44863329/article/details/109955581","extend1":"pc","ab":"new"}"><div></div></div> <link href="https://csdnimg.cn/release/blogv2/dist/mdeditor/css/editerView/markdown_views-f23dff6052.css" rel="stylesheet"> <link href="https://csdnimg.cn/release/blogv2/dist/mdeditor/css/style-c216769e99.css" rel="stylesheet"> <div><div><span>声明：</span>本文内容由网友自发贡献，不代表【wpsshop博客】立场，版权归原作者所有，本站不承担相应法律责任。如您发现有侵权的内容，请联系我们。转载请注明出处：<a href="https://www.wpsshop.cn/w/盐析白兔/article/detail/651042">https://www.wpsshop.cn/w/盐析白兔/article/detail/651042</a></div></div></div><div class="article_recommend"><div 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