From 009b0e37e7c284c531cc3c44d0e5b5b1476f1666 Mon Sep 17 00:00:00 2001
From: Matei Zaharia <matei@eecs.berkeley.edu>
Date: Thu, 27 Sep 2012 18:45:44 -0700
Subject: Added an option to compress blocks in the block store

---
 docs/configuration.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'docs/configuration.md')

diff --git a/docs/configuration.md b/docs/configuration.md
index 4e47ca16e8..e4d5b21a12 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -111,6 +111,23 @@ Apart from these, the following properties are also available, and may be useful
     <code>reduceByKey</code>, etc) when not set by user.
   </td>
 </tr>
+<tr>
+  <td>spark.blockManager.compress</td>
+  <td>false</td>
+  <td>
+    Set to "true" to have Spark compress map output files, RDDs that get cached on disk,
+    and RDDs that get cached in serialized form. Generally a good idea when dealing with
+    large datasets, but might add some CPU overhead.
+  </td>
+</tr>
+<tr>
+  <td>spark.broadcast.compress</td>
+  <td>false</td>
+  <td>
+    Set to "true" to have Spark compress broadcast variables before sending them.
+    Generally a good idea when broadcasting large values.
+  </td>
+</tr>
 <tr>
   <td>spark.storage.memoryFraction</td>
   <td>0.66</td>
-- 
cgit v1.2.3