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| <div class="section" id="pyspark-storagelevel"> |
| <h1>pyspark.StorageLevel<a class="headerlink" href="#pyspark-storagelevel" title="Permalink to this headline">¶</a></h1> |
| <dl class="py class"> |
| <dt id="pyspark.StorageLevel"> |
| <em class="property">class </em><code class="sig-prename descclassname">pyspark.</code><code class="sig-name descname">StorageLevel</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">useDisk</span><span class="p">:</span> <span class="n">bool</span></em>, <em class="sig-param"><span class="n">useMemory</span><span class="p">:</span> <span class="n">bool</span></em>, <em class="sig-param"><span class="n">useOffHeap</span><span class="p">:</span> <span class="n">bool</span></em>, <em class="sig-param"><span class="n">deserialized</span><span class="p">:</span> <span class="n">bool</span></em>, <em class="sig-param"><span class="n">replication</span><span class="p">:</span> <span class="n">int</span> <span class="o">=</span> <span class="default_value">1</span></em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/pyspark/storagelevel.html#StorageLevel"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pyspark.StorageLevel" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Flags for controlling the storage of an RDD. Each StorageLevel records whether to use memory, |
| whether to drop the RDD to disk if it falls out of memory, whether to keep the data in memory |
| in a JAVA-specific serialized format, and whether to replicate the RDD partitions on multiple |
| nodes. Also contains static constants for some commonly used storage levels, MEMORY_ONLY. |
| Since the data is always serialized on the Python side, all the constants use the serialized |
| formats.</p> |
| <p class="rubric">Attributes</p> |
| <table class="longtable table autosummary"> |
| <colgroup> |
| <col style="width: 10%" /> |
| <col style="width: 90%" /> |
| </colgroup> |
| <tbody> |
| <tr class="row-odd"><td><p><a class="reference internal" href="pyspark.StorageLevel.DISK_ONLY.html#pyspark.StorageLevel.DISK_ONLY" title="pyspark.StorageLevel.DISK_ONLY"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DISK_ONLY</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="pyspark.StorageLevel.DISK_ONLY_2.html#pyspark.StorageLevel.DISK_ONLY_2" title="pyspark.StorageLevel.DISK_ONLY_2"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DISK_ONLY_2</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="pyspark.StorageLevel.DISK_ONLY_3.html#pyspark.StorageLevel.DISK_ONLY_3" title="pyspark.StorageLevel.DISK_ONLY_3"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DISK_ONLY_3</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="pyspark.StorageLevel.MEMORY_AND_DISK.html#pyspark.StorageLevel.MEMORY_AND_DISK" title="pyspark.StorageLevel.MEMORY_AND_DISK"><code class="xref py py-obj docutils literal notranslate"><span class="pre">MEMORY_AND_DISK</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="pyspark.StorageLevel.MEMORY_AND_DISK_2.html#pyspark.StorageLevel.MEMORY_AND_DISK_2" title="pyspark.StorageLevel.MEMORY_AND_DISK_2"><code class="xref py py-obj docutils literal notranslate"><span class="pre">MEMORY_AND_DISK_2</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-even"><td><p><code class="xref py py-obj docutils literal notranslate"><span class="pre">MEMORY_AND_DISK_DESER</span></code></p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="pyspark.StorageLevel.MEMORY_ONLY.html#pyspark.StorageLevel.MEMORY_ONLY" title="pyspark.StorageLevel.MEMORY_ONLY"><code class="xref py py-obj docutils literal notranslate"><span class="pre">MEMORY_ONLY</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="pyspark.StorageLevel.MEMORY_ONLY_2.html#pyspark.StorageLevel.MEMORY_ONLY_2" title="pyspark.StorageLevel.MEMORY_ONLY_2"><code class="xref py py-obj docutils literal notranslate"><span class="pre">MEMORY_ONLY_2</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="pyspark.StorageLevel.OFF_HEAP.html#pyspark.StorageLevel.OFF_HEAP" title="pyspark.StorageLevel.OFF_HEAP"><code class="xref py py-obj docutils literal notranslate"><span class="pre">OFF_HEAP</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| </tbody> |
| </table> |
| </dd></dl> |
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