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<p>MongoDB 进阶操作，包括索引、底层细节、<code>mongoose</code>库的使用等</p>
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<blockquote>
<p>MongoDB 是目前最主流的NoSQL之一，有高性能、高可用性、自动扩容等有点。本文是自己在学习<code>mongodb</code>时所做记录。</p>
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<a href="/17-04-2018-MapReduce/" class="post-title-link" itemprop="url">MapReduce基础知识</a>
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<h2 id="Motivation-for-MapReduce"><a href="#Motivation-for-MapReduce" class="headerlink" title="Motivation for MapReduce"></a>Motivation for MapReduce</h2><ul>
<li>process lots of data(>1TB)</li>
<li>parallelize across</li>
<li>make this easy<ul>
<li>automatic parallelization and distribution</li>
<li>fault-tolerance 容错 -> 给的数据集里部分数据有问题</li>
<li>I/O scheduling</li>
<li>status and monitoring</li>
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<a href="/12-04-2018-spark/" class="post-title-link" itemprop="url">Spark 笔记</a>
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<time title="创建时间：12-04-2018 12:09:48" itemprop="dateCreated datePublished" datetime="2018-04-12T12:09:48+10:00">12-04-2018</time>
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