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-rw-r--r--docs/configuration.md9
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diff --git a/docs/configuration.md b/docs/configuration.md
index 41c1778ee7..ea99592408 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -202,6 +202,15 @@ of the most common options to set are:
or remotely ("cluster") on one of the nodes inside the cluster.
</td>
</tr>
+<tr>
+ <td><code>spark.log.callerContext</code></td>
+ <td>(none)</td>
+ <td>
+ Application information that will be written into Yarn RM log/HDFS audit log when running on Yarn/HDFS.
+ Its length depends on the Hadoop configuration <code>hadoop.caller.context.max.size</code>. It should be concise,
+ and typically can have up to 50 characters.
+ </td>
+</tr>
</table>
Apart from these, the following properties are also available, and may be useful in some situations: