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diff --git a/docs/configuration.md b/docs/configuration.md
index fd236137cb..24b606356a 100644
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+++ b/docs/configuration.md
@@ -557,6 +557,20 @@ Apart from these, the following properties are also available, and may be useful
collecting.
</td>
</tr>
+<tr>
+ <td><code>spark.worker.ui.retainedExecutors</code></td>
+ <td>1000</td>
+ <td>
+ How many finished executors the Spark UI and status APIs remember before garbage collecting.
+ </td>
+</tr>
+<tr>
+ <td><code>spark.worker.ui.retainedDrivers</code></td>
+ <td>1000</td>
+ <td>
+ How many finished drivers the Spark UI and status APIs remember before garbage collecting.
+ </td>
+</tr>
</table>
#### Compression and Serialization