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update spark.default.parallelism #389

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update spark.default.parallelism
CrazyJvm Apr 11, 2014
04a9796
change format
CrazyJvm Apr 11, 2014
84a7fe4
miss </li> at the end of every single line
CrazyJvm Apr 14, 2014
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8 changes: 7 additions & 1 deletion docs/configuration.md
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Expand Up @@ -96,7 +96,13 @@ Apart from these, the following properties are also available, and may be useful
<tr><th>Property Name</th><th>Default</th><th>Meaning</th></tr>
<tr>
<td>spark.default.parallelism</td>
<td>8</td>
<td>
<ul>
<li>Mesos fine grained mode: 8</li>
<li>Local mode: core number of the local machine</li>
<li>Others: total core number of all executor nodes or 2, whichever is larger</li>
</ul>
</td>
<td>
Default number of tasks to use across the cluster for distributed shuffle operations (<code>groupByKey</code>,
<code>reduceByKey</code>, etc) when not set by user.
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