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authorReynold Xin <rxin@apache.org>2014-08-12 22:50:29 -0700
committerReynold Xin <rxin@apache.org>2014-08-12 22:50:42 -0700
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[SPARK-2953] Allow using short names for io compression codecs
Instead of requiring "org.apache.spark.io.LZ4CompressionCodec", it is easier for users if Spark just accepts "lz4", "lzf", "snappy". Author: Reynold Xin <rxin@apache.org> Closes #1873 from rxin/compressionCodecShortForm and squashes the following commits: 9f50962 [Reynold Xin] Specify short-form compression codec names first. 63f78ee [Reynold Xin] Updated configuration documentation. 47b3848 [Reynold Xin] [SPARK-2953] Allow using short names for io compression codecs (cherry picked from commit 676f98289dad61c091bb45bd35a2b9613b22d64a) Signed-off-by: Reynold Xin <rxin@apache.org>
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diff --git a/docs/configuration.md b/docs/configuration.md
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--- a/docs/configuration.md
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@@ -373,10 +373,12 @@ Apart from these, the following properties are also available, and may be useful
</tr>
<tr>
<td><code>spark.io.compression.codec</code></td>
- <td>org.apache.spark.io.<br />SnappyCompressionCodec</td>
+ <td>snappy</td>
<td>
- The codec used to compress internal data such as RDD partitions and shuffle outputs.
- By default, Spark provides three codecs: <code>org.apache.spark.io.LZ4CompressionCodec</code>,
+ The codec used to compress internal data such as RDD partitions and shuffle outputs. By default,
+ Spark provides three codecs: <code>lz4</code>, <code>lzf</code>, and <code>snappy</code>. You
+ can also use fully qualified class names to specify the codec, e.g.
+ <code>org.apache.spark.io.LZ4CompressionCodec</code>,
<code>org.apache.spark.io.LZFCompressionCodec</code>,
and <code>org.apache.spark.io.SnappyCompressionCodec</code>.
</td>