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<meta property="og:description" content="防火墙关闭123# 在 6 台主机执行systemctl stop firewalldsystemctl disable firewalld 配置yum源 下载 repo 文件：Centos-7.repo并上传到/tmp，进入到/tmp 备份并且替换系统的repo文件1234 cp Centos-7.repo /etc/yum.repos.d/ cd /etc/yum.repos.d/ mv C">
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class="post-meta-separator">|</span><i class="fas fa-history fa-fw post-meta-icon"></i><span class="post-meta-label">更新于</span><time class="post-meta-date-updated" datetime="2024-09-11T14:45:28.095Z" title="更新于 2024-09-11 22:45:28">2024-09-11</time></span></div><div class="meta-secondline"><span class="post-meta-separator">|</span><span class="post-meta-pv-cv" id="" data-flag-title="Hadoop集群搭建基础环境"><i class="far fa-eye fa-fw post-meta-icon"></i><span class="post-meta-label">阅读量:</span><span id="busuanzi_value_page_pv"><i class="fa-solid fa-spinner fa-spin"></i></span></span></div></div></div></header><main class="layout" id="content-inner"><div id="post"><article class="post-content" id="article-container"><h3 id="防火墙关闭"><a href="#防火墙关闭" class="headerlink" title="防火墙关闭"></a>防火墙关闭</h3><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment"># 在 6 台主机执行</span></span><br><span class="line">systemctl stop firewalld</span><br><span class="line">systemctl <span class="built_in">disable</span> firewalld</span><br></pre></td></tr></table></figure>
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<h3 id="配置yum源"><a href="#配置yum源" class="headerlink" title="配置yum源"></a>配置yum源</h3><ul>
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<li>下载 repo 文件：<br><a target="_blank" rel="noopener" href="http://mirrors.aliyun.com/repo/Centos-7.repo">Centos-7.repo</a><br>并上传到<code>/tmp</code>，进入到<code>/tmp</code></li>
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<li>备份并且替换系统的repo文件<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"> <span class="built_in">cp</span> Centos-7.repo /etc/yum.repos.d/ </span><br><span class="line"><span class="built_in">cd</span> /etc/yum.repos.d/ </span><br><span class="line"><span class="built_in">mv</span> CentOS-Base.repo CentOS-Base.repo.bak </span><br><span class="line"><span class="built_in">mv</span> Centos-7.repo CentOS-Base.repo</span><br></pre></td></tr></table></figure></li>
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<li>将<code>nn1</code>上的<code>CentOS-Base.repo</code>拷贝到其他主机<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">scp /etc/yum.repos.d/CentOS-Base.repo root@nn2:/etc/yum.repos.d</span><br><span class="line">scp /etc/yum.repos.d/CentOS-Base.repo root@nn3:/etc/yum.repos.d</span><br><span class="line">scp /etc/yum.repos.d/CentOS-Base.repo root@s1:/etc/yum.repos.d</span><br><span class="line">scp /etc/yum.repos.d/CentOS-Base.repo root@s2:/etc/yum.repos.d</span><br><span class="line">scp /etc/yum.repos.d/CentOS-Base.repo root@s3:/etc/yum.repos.d</span><br></pre></td></tr></table></figure></li>
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<li>执行yum源更新命令<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">yum clean all</span><br><span class="line">yum makecache </span><br><span class="line">yum update -y </span><br></pre></td></tr></table></figure></li>
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<li>安装常用软件 <figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">yum install -y openssh-server vim gcc gcc-c++ glibc-headers bzip2-devel lzo-devel curl wget openssh-clients zlib-devel autoconf automake cmake libtool openssl-devel fuse-devel snappy-devel telnet unzip zip net-tools.x86_64 firewalld systemd ntp unrar bzip2</span><br></pre></td></tr></table></figure></li>
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</ul>
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<h3 id="JDK安装"><a href="#JDK安装" class="headerlink" title="JDK安装"></a>JDK安装</h3><blockquote>
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<p>注意需要在六台机器依次执行</p>
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</blockquote>
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<ul>
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<li>上传到<code>/tmp</code>目录下，安装 <figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">cd</span> /tmp</span><br><span class="line">rpm -ivh jdk-8u144-linux-x64.rpm</span><br></pre></td></tr></table></figure></li>
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<li>配置环境变量 <figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">ln</span> -s /usr/java/jdk1.8.0_144/ /usr/java/jdk1.8</span><br><span class="line"><span class="built_in">echo</span> <span class="string">'export JAVA_HOME=/usr/java/jdk1.8'</span> >> /etc/profile.d/myEnv.sh </span><br><span class="line"><span class="built_in">echo</span> <span class="string">'export PATH=$PATH:$JAVA_HOME/bin'</span> >> /etc/profile.d/myEnv.sh </span><br><span class="line"><span class="built_in">source</span> /etc/profile </span><br><span class="line">java -version</span><br></pre></td></tr></table></figure></li>
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</ul>
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<h3 id="修改主机名和主机名映射"><a href="#修改主机名和主机名映射" class="headerlink" title="修改主机名和主机名映射"></a>修改主机名和主机名映射</h3><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">vim /etc/hostname</span><br></pre></td></tr></table></figure>
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<p>6台机器分别为nn1、nn2、nn3、s1、s2、s3</p>
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<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">vim /etc/hosts</span><br></pre></td></tr></table></figure>
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<p>修改为</p>
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<figure class="highlight text"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">192.168.1.30 nn1</span><br><span class="line">192.168.1.31 nn2</span><br><span class="line">192.168.1.32 nn3</span><br><span class="line">192.168.1.33 s1</span><br><span class="line">192.168.1.34 s2</span><br><span class="line">192.168.1.35 s3</span><br></pre></td></tr></table></figure>
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<h3 id="创建hadoop用户"><a href="#创建hadoop用户" class="headerlink" title="创建hadoop用户"></a>创建hadoop用户</h3><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">#创建hadoop用户 </span></span><br><span class="line">useradd hadoop </span><br><span class="line"><span class="comment">#给hadoop用户设置密码: 12345678 </span></span><br><span class="line">passwd hadoop</span><br></pre></td></tr></table></figure>
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<h3 id="禁止非-wheel-组用户切换到root，配置免密切换root"><a href="#禁止非-wheel-组用户切换到root，配置免密切换root" class="headerlink" title="禁止非 wheel 组用户切换到root，配置免密切换root"></a>禁止非 wheel 组用户切换到root，配置免密切换root</h3><ul>
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<li>修改/etc/pam.d/su配置 <figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">sed -i <span class="string">'s/#auth\t\trequired\tpam_wheel.so/auth\t\trequired\tpam_wheel.so/g'</span> <span class="string">'/etc/pam.d/su'</span> </span><br><span class="line">sed -i <span class="string">'s/#auth\t\tsufficient\tpam_wheel.so/auth\t\tsufficient\tpam_wheel.so/g'</span> <span class="string">'/etc/pam.d/su'</span></span><br></pre></td></tr></table></figure></li>
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<li>修改/etc/login.defs文件 <figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">echo</span> <span class="string">"SU_WHEEL_ONLY yes"</span> >> /etc/login.defs</span><br></pre></td></tr></table></figure></li>
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<li>添加用户到管理员，禁止普通用户su 到 root <figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">#把hadoop用户加到wheel组里</span></span><br><span class="line">gpasswd -a hadoop wheel</span><br><span class="line"><span class="comment">#查看wheel组里是否有hadoop用户</span></span><br><span class="line"><span class="built_in">cat</span> /etc/group | grep wheel</span><br></pre></td></tr></table></figure></li>
|
||
</ul>
|
||
<h3 id="给hadoop用户，配置SSH密钥"><a href="#给hadoop用户，配置SSH密钥" class="headerlink" title="给hadoop用户，配置SSH密钥"></a>给hadoop用户，配置SSH密钥</h3><h4 id="配置hadoop用户ssh免密码登录到hadoop"><a href="#配置hadoop用户ssh免密码登录到hadoop" class="headerlink" title="配置hadoop用户ssh免密码登录到hadoop"></a>配置hadoop用户ssh免密码登录到hadoop</h4><ul>
|
||
<li>仅在<code>nn1</code>执行这段脚本命令即可<br>但是 <code>su - hadoop </code> ,<code> mkdir ~/.ssh</code> 需要在其他主机执行一下 <figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">#切换到hadoop用户 </span></span><br><span class="line">su - hadoop</span><br><span class="line"><span class="comment">#生成ssh公私钥 </span></span><br><span class="line">ssh-keygen -t rsa -f ~/.ssh/id_rsa -P <span class="string">''</span></span><br><span class="line">ssh-copy-id nn1</span><br><span class="line">ssh-copy-id nn2</span><br><span class="line">ssh-copy-id nn3</span><br><span class="line">ssh-copy-id s1</span><br><span class="line">ssh-copy-id s2</span><br><span class="line">ssh-copy-id s3</span><br><span class="line">scp /home/hadoop/.ssh/id_rsa hadoop@nn2:/home/hadoop/.ssh</span><br><span class="line">scp /home/hadoop/.ssh/id_rsa hadoop@nn3:/home/hadoop/.ssh</span><br><span class="line">scp /home/hadoop/.ssh/id_rsa hadoop@s1:/home/hadoop/.ssh</span><br><span class="line">scp /home/hadoop/.ssh/id_rsa hadoop@s2:/home/hadoop/.ssh</span><br><span class="line">scp /home/hadoop/.ssh/id_rsa hadoop@s3:/home/hadoop/.ssh</span><br></pre></td></tr></table></figure></li>
|
||
</ul>
|
||
<h4 id="配置hadoop用户ssh免密码登录到root"><a href="#配置hadoop用户ssh免密码登录到root" class="headerlink" title="配置hadoop用户ssh免密码登录到root"></a>配置hadoop用户ssh免密码登录到root</h4><ul>
|
||
<li>同上 <figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br></pre></td><td class="code"><pre><span class="line">ssh-copy-id root@nn1</span><br><span class="line">ssh-copy-id root@ nn2</span><br><span class="line">ssh-copy-id root@nn3</span><br><span class="line">ssh-copy-id root@s1</span><br><span class="line">ssh-copy-id root@s2</span><br><span class="line">ssh-copy-id root@s3</span><br><span class="line">scp /home/hadoop/.ssh/id_rsa root@nn2:/root/.ssh</span><br><span class="line">scp /home/hadoop/.ssh/id_rsa root@nn3:/root/.ssh</span><br><span class="line">scp /home/hadoop/.ssh/id_rsa root@s1:/root/.ssh</span><br><span class="line">scp /home/hadoop/.ssh/id_rsa root@s2:/root/.ssh</span><br><span class="line">scp /home/hadoop/.ssh/id_rsa root@s3:/root/.ssh</span><br></pre></td></tr></table></figure></li>
|
||
</ul>
|
||
<h3 id="脚本配置"><a href="#脚本配置" class="headerlink" title="脚本配置"></a>脚本配置</h3><ul>
|
||
<li><p><strong>ips</strong></p>
|
||
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">vim /home/hadoop/bin/ips</span><br></pre></td></tr></table></figure>
|
||
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">nn1 </span><br><span class="line">nn2</span><br><span class="line">nn3</span><br><span class="line">s1 </span><br><span class="line">s2 </span><br><span class="line">s3</span><br></pre></td></tr></table></figure></li>
|
||
<li><p><strong>ssh_all.sh</strong></p>
|
||
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">vim /home/hadoop/bin/ssh_all.sh</span><br></pre></td></tr></table></figure>
|
||
|
||
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#! /bin/bash</span></span><br><span class="line"><span class="comment"># 进入到当前脚本所在目录</span></span><br><span class="line"><span class="built_in">cd</span> `<span class="built_in">dirname</span> <span class="variable">$0</span>`</span><br><span class="line"><span class="comment"># 获取当前脚本所在目录</span></span><br><span class="line">dir_path=`<span class="built_in">pwd</span>`</span><br><span class="line"><span class="comment">#echo $dir_path</span></span><br><span class="line"><span class="comment"># 读ips文件得到数组(里面是一堆主机名)</span></span><br><span class="line">ip_arr=(`<span class="built_in">cat</span> <span class="variable">$dir_path</span>/ips`)</span><br><span class="line"><span class="comment"># 遍历数组里的主机名</span></span><br><span class="line"><span class="keyword">for</span> ip <span class="keyword">in</span> <span class="variable">${ip_arr[*]}</span></span><br><span class="line"><span class="keyword">do</span></span><br><span class="line"> <span class="comment"># 拼接ssh命令: ssh hadoop@nn1.hadoop ls</span></span><br><span class="line"> cmd_=<span class="string">"ssh hadoop@<span class="variable">${ip}</span> \"$*\" "</span></span><br><span class="line"> <span class="built_in">echo</span> <span class="variable">$cmd_</span></span><br><span class="line"> <span class="comment"># 通过eval命令 执行 拼接的ssh 命令</span></span><br><span class="line"> <span class="keyword">if</span> <span class="built_in">eval</span> <span class="variable">${cmd_}</span> ; <span class="keyword">then</span></span><br><span class="line"> <span class="built_in">echo</span> <span class="string">"OK"</span></span><br><span class="line"> <span class="keyword">else</span></span><br><span class="line"> <span class="built_in">echo</span> <span class="string">"FAIL"</span></span><br><span class="line"> <span class="keyword">fi</span></span><br><span class="line"><span class="keyword">done</span></span><br></pre></td></tr></table></figure></li>
|
||
<li><p><strong>ssh_root.sh</strong></p>
|
||
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#! /bin/bash</span></span><br><span class="line"><span class="comment"># 进入到当前脚本所在目录</span></span><br><span class="line"><span class="built_in">cd</span> `<span class="built_in">dirname</span> <span class="variable">$0</span>`</span><br><span class="line"><span class="comment"># 获取当前脚本所在目录</span></span><br><span class="line">dir_path=`<span class="built_in">pwd</span>`</span><br><span class="line"><span class="comment">#echo $dir_path</span></span><br><span class="line"><span class="comment"># 读ips文件得到数组(里面是一堆主机名)</span></span><br><span class="line">ip_arr=(`<span class="built_in">cat</span> <span class="variable">$dir_path</span>/ips`)</span><br><span class="line"><span class="comment"># 遍历数组里的主机名</span></span><br><span class="line"><span class="keyword">for</span> ip <span class="keyword">in</span> <span class="variable">${ip_arr[*]}</span></span><br><span class="line"><span class="keyword">do</span></span><br><span class="line"> <span class="comment"># 拼接ssh命令: ssh hadoop@nn1.hadoop ls</span></span><br><span class="line"> cmd_=<span class="string">"ssh hadoop@<span class="variable">${ip}</span> ~/bin/exe.sh \"$*\""</span></span><br><span class="line"> <span class="built_in">echo</span> <span class="variable">$cmd_</span></span><br><span class="line"> <span class="comment"># 通过eval命令 执行 拼接的ssh 命令</span></span><br><span class="line"> <span class="keyword">if</span> <span class="built_in">eval</span> <span class="variable">${cmd_}</span> ; <span class="keyword">then</span></span><br><span class="line"> <span class="built_in">echo</span> <span class="string">"OK"</span></span><br><span class="line"> <span class="keyword">else</span></span><br><span class="line"> <span class="built_in">echo</span> <span class="string">"FAIL"</span></span><br><span class="line"> <span class="keyword">fi</span></span><br><span class="line"><span class="keyword">done</span></span><br></pre></td></tr></table></figure></li>
|
||
<li><p><strong>scp_all.sh</strong></p>
|
||
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#! /bin/bash</span></span><br><span class="line"><span class="comment"># 进入到当前脚本所在目录</span></span><br><span class="line"><span class="built_in">cd</span> `<span class="built_in">dirname</span> <span class="variable">$0</span>`</span><br><span class="line"><span class="comment"># 获取当前脚本所在目录</span></span><br><span class="line">dir_path=`<span class="built_in">pwd</span>`</span><br><span class="line"><span class="comment">#echo $dir_path</span></span><br><span class="line"><span class="comment"># 读ips文件得到数组(里面是一堆主机名)</span></span><br><span class="line">ip_arr=(`<span class="built_in">cat</span> <span class="variable">$dir_path</span>/ips`)</span><br><span class="line"><span class="comment"># 源</span></span><br><span class="line">source_=<span class="variable">$1</span></span><br><span class="line"><span class="comment"># 目标</span></span><br><span class="line">target=<span class="variable">$2</span></span><br><span class="line"><span class="comment"># 遍历数组里的主机名</span></span><br><span class="line"><span class="keyword">for</span> ip <span class="keyword">in</span> <span class="variable">${ip_arr[*]}</span></span><br><span class="line"><span class="keyword">do</span></span><br><span class="line"> <span class="comment"># 拼接scp命令: scp 源 hadoop@nn1.hadoop:目标</span></span><br><span class="line"> cmd_=<span class="string">"scp -r <span class="variable">${source_}</span> hadoop@<span class="variable">${ip}</span>:<span class="variable">${target}</span>"</span></span><br><span class="line"> <span class="built_in">echo</span> <span class="variable">$cmd_</span></span><br><span class="line"> <span class="comment"># 通过eval命令 执行 拼接的scp 命令</span></span><br><span class="line"> <span class="keyword">if</span> <span class="built_in">eval</span> <span class="variable">${cmd_}</span> ; <span class="keyword">then</span></span><br><span class="line"> <span class="built_in">echo</span> <span class="string">"OK"</span></span><br><span class="line"> <span class="keyword">else</span></span><br><span class="line"> <span class="built_in">echo</span> <span class="string">"FAIL"</span></span><br><span class="line"> <span class="keyword">fi</span></span><br><span class="line"><span class="keyword">done</span></span><br></pre></td></tr></table></figure></li>
|
||
<li><p><strong>exe.sh</strong></p>
|
||
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">#切换到root用户执行cmd命令</span></span><br><span class="line">cmd=$*</span><br><span class="line">su - << <span class="string">EOF</span></span><br><span class="line"><span class="string">$cmd</span></span><br><span class="line"><span class="string">EOF</span></span><br></pre></td></tr></table></figure></li>
|
||
<li><p>赋予执行权限</p>
|
||
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">chmod</span> +x ssh_all.sh </span><br><span class="line"><span class="built_in">chmod</span> +x scp_all.sh</span><br><span class="line"><span class="built_in">chmod</span> +x ssh_root.sh</span><br><span class="line"><span class="built_in">chmod</span> +x exe.sh</span><br></pre></td></tr></table></figure></li>
|
||
<li><p>分发到其他主机</p>
|
||
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">./ssh_all.sh <span class="built_in">mkdir</span> /home/hadoop/bin</span><br><span class="line">./scp_all.sh /home/hadoop/bin/ips /home/hadoop/bin/</span><br><span class="line">./scp_all.sh /home/hadoop/bin/exe.sh /home/hadoop/bin/</span><br><span class="line">./scp_all.sh /home/hadoop/bin/ssh_all.sh /home/hadoop/bin/</span><br><span class="line">./scp_all.sh /home/hadoop/bin/scp_all.sh /home/hadoop/bin/</span><br><span class="line">./scp_all.sh /home/hadoop/bin/ssh_root.sh /home/hadoop/bin/</span><br></pre></td></tr></table></figure>
|
||
</li>
|
||
<li><p>将 <code>/home/hadoop/bin</code>添加到hadoop用户的环境变量，需要切换到<code>hadoop</code>用户</p>
|
||
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">echo</span> <span class="string">'export PATH=$PATH:/home/hadoop/bin'</span> >> ~/.bashrc && <span class="built_in">source</span> ~/.bashrc</span><br><span class="line">scp_all.sh /home/hadoop/.bashrc /home/hadoop/</span><br><span class="line">ssh_all.sh <span class="built_in">source</span> ~/.bashrc </span><br></pre></td></tr></table></figure></li>
|
||
</ul>
|
||
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href="#JDK%E5%AE%89%E8%A3%85"><span class="toc-number">3.</span> <span class="toc-text">JDK安装</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#%E4%BF%AE%E6%94%B9%E4%B8%BB%E6%9C%BA%E5%90%8D%E5%92%8C%E4%B8%BB%E6%9C%BA%E5%90%8D%E6%98%A0%E5%B0%84"><span class="toc-number">4.</span> <span class="toc-text">修改主机名和主机名映射</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#%E5%88%9B%E5%BB%BAhadoop%E7%94%A8%E6%88%B7"><span class="toc-number">5.</span> <span class="toc-text">创建hadoop用户</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#%E7%A6%81%E6%AD%A2%E9%9D%9E-wheel-%E7%BB%84%E7%94%A8%E6%88%B7%E5%88%87%E6%8D%A2%E5%88%B0root%EF%BC%8C%E9%85%8D%E7%BD%AE%E5%85%8D%E5%AF%86%E5%88%87%E6%8D%A2root"><span class="toc-number">6.</span> <span class="toc-text">禁止非 wheel 组用户切换到root，配置免密切换root</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#%E7%BB%99hadoop%E7%94%A8%E6%88%B7%EF%BC%8C%E9%85%8D%E7%BD%AESSH%E5%AF%86%E9%92%A5"><span class="toc-number">7.</span> <span class="toc-text">给hadoop用户，配置SSH密钥</span></a><ol class="toc-child"><li class="toc-item toc-level-4"><a class="toc-link" href="#%E9%85%8D%E7%BD%AEhadoop%E7%94%A8%E6%88%B7ssh%E5%85%8D%E5%AF%86%E7%A0%81%E7%99%BB%E5%BD%95%E5%88%B0hadoop"><span class="toc-number">7.1.</span> <span class="toc-text">配置hadoop用户ssh免密码登录到hadoop</span></a></li><li class="toc-item toc-level-4"><a class="toc-link" href="#%E9%85%8D%E7%BD%AEhadoop%E7%94%A8%E6%88%B7ssh%E5%85%8D%E5%AF%86%E7%A0%81%E7%99%BB%E5%BD%95%E5%88%B0root"><span class="toc-number">7.2.</span> <span class="toc-text">配置hadoop用户ssh免密码登录到root</span></a></li></ol></li><li class="toc-item toc-level-3"><a class="toc-link" href="#%E8%84%9A%E6%9C%AC%E9%85%8D%E7%BD%AE"><span class="toc-number">8.</span> <span class="toc-text">脚本配置</span></a></li></ol></div></div><div class="card-widget card-recent-post"><div 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