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Diff for: ‎2024/04/01/huan-ying-shi-yong-hexo/index.html

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&nbsp;<i class="fas fa-chart-area"></i>&nbsp;站点总字数:&nbsp;<span
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Diff for: ‎2024/04/02/intellij-idea-chang-yong-kuai-jie-jian-yi-lan-biao/index.html

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&nbsp;<i class="fas fa-chart-area"></i>&nbsp;站点总字数:&nbsp;<span
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Diff for: ‎2024/04/02/nemo-hai-yang-mo-xing-de-an-zhuang-da-jian-yu-yun-xing/index.html

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&nbsp;<i class="fas fa-chart-area"></i>&nbsp;站点总字数:&nbsp;<span
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Diff for: ‎2024/04/17/linux-pu-tong-yong-hu-wu-root-quan-xian-an-zhuang-mysql-8-0-36/index.html

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<div class="post-date info-break-policy">
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<i class="far fa-calendar-check fa-fw"></i>更新日期:&nbsp;&nbsp;
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2024-04-19
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2024-05-07
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<i class="far fa-file-word fa-fw"></i>文章字数:&nbsp;&nbsp;
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<span class="token keyword">ALTER</span> <span class="token keyword">USER</span> <span class="token string">'root'</span><span class="token variable">@'localhost'</span> IDENTIFIED <span class="token keyword">BY</span> <span class="token string">'123456'</span><span class="token punctuation">;</span> <span class="token comment">--设置登录密码为123456</span>
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flush <span class="token keyword">privileges</span><span class="token punctuation">;</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span></span></code></pre>
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<h1 id="4、退出MySQL"><a href="#4、退出MySQL" class="headerlink" title="4、退出MySQL"></a>4、退出MySQL</h1><p>可以在终端中执行以下shell命令关闭MySQL：</p>
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<pre class="line-numbers language-bash" data-language="bash"><code class="language-bash">mysqladmin -u root <span class="token function">shutdown</span><span aria-hidden="true" class="line-numbers-rows"><span></span></span></code></pre>
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<p>或者在MySQL中执行SQL语句退出：</p>
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<pre class="line-numbers language-sql" data-language="sql"><code class="language-sql"><span class="token keyword">SHUTDOWN</span><span class="token punctuation">;</span> <span class="token keyword">EXIT</span><span class="token punctuation">;</span><span aria-hidden="true" class="line-numbers-rows"><span></span></span></code></pre>
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<p>至此，MySQL安装完成</p>
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Diff for: ‎2024/04/19/sysbench-oltp-ji-zhun-ce-shi-shi-yong/index.html

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<i class="far fa-calendar-check fa-fw"></i>更新日期:&nbsp;&nbsp;
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2024-04-25
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<h1 id="4、清理数据"><a href="#4、清理数据" class="headerlink" title="4、清理数据"></a>4、清理数据</h1><pre class="line-numbers language-bash" data-language="bash"><code class="language-bash">sysbench --config-file<span class="token operator">=</span>/home/czhang/mysql-8.0.36/my-sysbench.cnf --tables<span class="token operator">=</span><span class="token number">8</span> --table-size<span class="token operator">=</span><span class="token number">10000</span> oltp_common.lua cleanup<span aria-hidden="true" class="line-numbers-rows"><span></span></span></code></pre>
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<p><strong>注意：</strong>清理数据时除了将prepare改成cleanup，其他全都得一样</p>
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<h1 id="5、可能用得上的MySQL命令"><a href="#5、可能用得上的MySQL命令" class="headerlink" title="5、可能用得上的MySQL命令"></a>5、可能用得上的MySQL命令</h1><p>使用sysbench对MySQL进行基准测试时可能用得上的MySQL命令：</p>
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<h1 id="5、常用MySQL命令"><a href="#5、常用MySQL命令" class="headerlink" title="5、常用MySQL命令"></a>5、常用MySQL命令</h1><p>使用sysbench对MySQL进行基准测试时可能用得上的MySQL命令：</p>
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<h2 id="5-1-查看指定数据库的容量大小"><a href="#5-1-查看指定数据库的容量大小" class="headerlink" title="5.1 查看指定数据库的容量大小"></a>5.1 查看指定数据库的容量大小</h2><pre class="line-numbers language-sql" data-language="sql"><code class="language-sql"><span class="token keyword">SELECT</span> <span class="token function">SUM</span><span class="token punctuation">(</span>data_length <span class="token operator">+</span> index_length<span class="token punctuation">)</span> <span class="token keyword">AS</span> total_size_bytes<span class="token punctuation">,</span>CONCAT<span class="token punctuation">(</span><span class="token function">ROUND</span><span class="token punctuation">(</span><span class="token function">SUM</span><span class="token punctuation">(</span>data_length <span class="token operator">+</span> index_length<span class="token punctuation">)</span> <span class="token operator">/</span> <span class="token number">1024</span> <span class="token operator">/</span> <span class="token number">1024</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token string">' MB'</span><span class="token punctuation">)</span> <span class="token keyword">AS</span> total_size_mb <span class="token keyword">FROM</span> information_schema<span class="token punctuation">.</span><span class="token keyword">TABLES</span> <span class="token keyword">WHERE</span> table_schema <span class="token operator">=</span> <span class="token string">'sysbench_test'</span><span class="token punctuation">;</span><span aria-hidden="true" class="line-numbers-rows"><span></span></span></code></pre>
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<p>显示结果示例如下：<br><img src="/2024/04/19/sysbench-oltp-ji-zhun-ce-shi-shi-yong/Blog\source_posts\数据库容量大小.png"></p>
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<p>显示结果示例如下：</p>
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<p><img src="/2024/04/19/sysbench-oltp-ji-zhun-ce-shi-shi-yong/%E6%95%B0%E6%8D%AE%E5%BA%93%E5%90%84%E8%A1%A8%E8%AE%B0%E5%BD%95%E6%95%B0%E5%A4%A7%E5%B0%8F.png"></p>
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<h1 id="6、常用cmd命令"><a href="#6、常用cmd命令" class="headerlink" title="6、常用cmd命令"></a>6、常用cmd命令</h1><p>显示包含“mysql”的进程</p>
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<pre class="line-numbers language-bash" data-language="bash"><code class="language-bash"><span class="token function">ps</span> -eo pid,psr,user,cmd <span class="token operator">|</span> <span class="token function">grep</span> mysql<span aria-hidden="true" class="line-numbers-rows"><span></span></span></code></pre>
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<p><strong>Reference：</strong></p>
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<p><a target="_blank" rel="noopener" href="https://blog.csdn.net/wudi53433927/article/details/136946422">sysbench oltp测试示例</a></p>
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Diff for: ‎404/index.html

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Diff for: ‎about/index.html

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},
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xAxis: {
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type: 'category',
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data: ["2023-04","2023-05","2023-06","2023-07","2023-08","2023-09","2023-10","2023-11","2023-12","2024-01","2024-02","2024-03","2024-04"]
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data: ["2023-05","2023-06","2023-07","2023-08","2023-09","2023-10","2023-11","2023-12","2024-01","2024-02","2024-03","2024-04","2024-05"]
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name: '文章篇数',
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color: ['#6772e5'],
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data: [0,0,0,0,0,0,0,0,0,0,0,0,5],
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