Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/33#discussion_r10144869
--- Diff: docs/configuration.md ---
@@ -477,6 +505,21 @@ Apart from these, the following properties are also
available, and may be useful
<td>
Whether to overwrite files added through SparkContext.addFile() when
the target file exists and its contents do not match those of the source.
</td>
+<tr>
+ <td>spark.authenticate</td>
+ <td>false</td>
+ <td>
+ Whether spark authenticates its internal connections. See
<code>SPARK_SECRET</code> if not
+ running on Yarn.
+ </td>
+</tr>
+<tr>
+ <td>spark.core.connection.auth.wait.timeout</td>
--- End diff --
Since `spark.worker.timeout` and `spark.akka.timeout` are in seconds, maybe
it makes sense for this to also be in seconds, rather than milliseconds?
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