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authorPatrick Wendell <pwendell@apache.org>2014-02-03 06:29:51 +0000
committerPatrick Wendell <pwendell@apache.org>2014-02-03 06:29:51 +0000
commit61203830f49cf7f5ce82f70ead2a155e256c02ee (patch)
tree67d83dfa860156196303eaa1f4873e2fefffe904 /site/docs/0.9.0/api/pyspark/pyspark.storagelevel.StorageLevel-class.html
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+ <title>pyspark.storagelevel.StorageLevel</title>
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+ <a href="pyspark-module.html">Package&nbsp;pyspark</a> ::
+ <a href="pyspark.storagelevel-module.html">Module&nbsp;storagelevel</a> ::
+ Class&nbsp;StorageLevel
+ </span>
+ </td>
+ <td>
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+ <!-- hide/show private -->
+ <tr><td align="right"><span class="options"
+ >[<a href="frames.html" target="_top">frames</a
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+ target="_top">no&nbsp;frames</a>]</span></td></tr>
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+</table>
+<!-- ==================== CLASS DESCRIPTION ==================== -->
+<h1 class="epydoc">Class StorageLevel</h1><p class="nomargin-top"><span class="codelink"><a href="pyspark.storagelevel-pysrc.html#StorageLevel">source&nbsp;code</a></span></p>
+<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 serialized format, and
+ whether to replicate the RDD partitions on multiple nodes. Also contains
+ static constants for some commonly used storage levels, such as
+ MEMORY_ONLY.</p>
+
+<!-- ==================== INSTANCE METHODS ==================== -->
+<a name="section-InstanceMethods"></a>
+<table class="summary" border="1" cellpadding="3"
+ cellspacing="0" width="100%" bgcolor="white">
+<tr bgcolor="#70b0f0" class="table-header">
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+ <span class="summary-type">&nbsp;</span>
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+ <tr>
+ <td><span class="summary-sig"><a name="__init__"></a><span class="summary-sig-name">__init__</span>(<span class="summary-sig-arg">self</span>,
+ <span class="summary-sig-arg">useDisk</span>,
+ <span class="summary-sig-arg">useMemory</span>,
+ <span class="summary-sig-arg">deserialized</span>,
+ <span class="summary-sig-arg">replication</span>=<span class="summary-sig-default">1</span>)</span></td>
+ <td align="right" valign="top">
+ <span class="codelink"><a href="pyspark.storagelevel-pysrc.html#StorageLevel.__init__">source&nbsp;code</a></span>
+
+ </td>
+ </tr>
+ </table>
+
+ </td>
+ </tr>
+</table>
+<!-- ==================== CLASS VARIABLES ==================== -->
+<a name="section-ClassVariables"></a>
+<table class="summary" border="1" cellpadding="3"
+ cellspacing="0" width="100%" bgcolor="white">
+<tr bgcolor="#70b0f0" class="table-header">
+ <td align="left" colspan="2" class="table-header">
+ <span class="table-header">Class Variables</span></td>
+</tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <a name="DISK_ONLY"></a><span class="summary-name">DISK_ONLY</span> = <code title="StorageLevel(True, False, False)">StorageLevel(True, False, False)</code>
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <a name="DISK_ONLY_2"></a><span class="summary-name">DISK_ONLY_2</span> = <code title="StorageLevel(True, False, False, 2)">StorageLevel(True, False, False, 2)</code>
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <a name="MEMORY_ONLY"></a><span class="summary-name">MEMORY_ONLY</span> = <code title="StorageLevel(False, True, True)">StorageLevel(False, True, True)</code>
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <a name="MEMORY_ONLY_2"></a><span class="summary-name">MEMORY_ONLY_2</span> = <code title="StorageLevel(False, True, True, 2)">StorageLevel(False, True, True, 2)</code>
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <a name="MEMORY_ONLY_SER"></a><span class="summary-name">MEMORY_ONLY_SER</span> = <code title="StorageLevel(False, True, False)">StorageLevel(False, True, False)</code>
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <a name="MEMORY_ONLY_SER_2"></a><span class="summary-name">MEMORY_ONLY_SER_2</span> = <code title="StorageLevel(False, True, False, 2)">StorageLevel(False, True, False, 2)</code>
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <a name="MEMORY_AND_DISK"></a><span class="summary-name">MEMORY_AND_DISK</span> = <code title="StorageLevel(True, True, True)">StorageLevel(True, True, True)</code>
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <a name="MEMORY_AND_DISK_2"></a><span class="summary-name">MEMORY_AND_DISK_2</span> = <code title="StorageLevel(True, True, True, 2)">StorageLevel(True, True, True, 2)</code>
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <a name="MEMORY_AND_DISK_SER"></a><span class="summary-name">MEMORY_AND_DISK_SER</span> = <code title="StorageLevel(True, True, False)">StorageLevel(True, True, False)</code>
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <a name="MEMORY_AND_DISK_SER_2"></a><span class="summary-name">MEMORY_AND_DISK_SER_2</span> = <code title="StorageLevel(True, True, False, 2)">StorageLevel(True, True, False, 2)</code>
+ </td>
+ </tr>
+</table>
+<!-- ==================== NAVIGATION BAR ==================== -->
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