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| author | Reynold Xin <rxin@apache.org> | 2014-08-05 16:24:50 -0700 |
|---|---|---|
| committer | Reynold Xin <rxin@apache.org> | 2014-08-05 16:24:50 -0700 |
| commit | acff9a7f13b98f10a08aea1d11cfa685c3419367 (patch) | |
| tree | 8c0226b6eb12d4e480a240686f33e9b0d88d3361 /docs/configuration.md | |
| parent | cc491f69cd239ae7572f1f5f55a2452f7f417dc1 (diff) | |
| download | spark-acff9a7f13b98f10a08aea1d11cfa685c3419367.tar.gz spark-acff9a7f13b98f10a08aea1d11cfa685c3419367.tar.bz2 spark-acff9a7f13b98f10a08aea1d11cfa685c3419367.zip | |
[SPARK-2503] Lower shuffle output buffer (spark.shuffle.file.buffer.kb) to 32KB.
This can substantially reduce memory usage during shuffle.
Author: Reynold Xin <rxin@apache.org>
Closes #1781 from rxin/SPARK-2503-spark.shuffle.file.buffer.kb and squashes the following commits:
104b8d8 [Reynold Xin] [SPARK-2503] Lower shuffle output buffer (spark.shuffle.file.buffer.kb) to 32KB.
Diffstat (limited to 'docs/configuration.md')
| -rw-r--r-- | docs/configuration.md | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/configuration.md b/docs/configuration.md index 5e7556c08e..7cd7f4124d 100644 --- a/docs/configuration.md +++ b/docs/configuration.md @@ -266,7 +266,7 @@ Apart from these, the following properties are also available, and may be useful </tr> <tr> <td><code>spark.shuffle.file.buffer.kb</code></td> - <td>100</td> + <td>32</td> <td> Size of the in-memory buffer for each shuffle file output stream, in kilobytes. These buffers reduce the number of disk seeks and system calls made in creating intermediate shuffle files. |