viirya commented on a change in pull request #29498:
URL: https://github.com/apache/spark/pull/29498#discussion_r474442266
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File path: docs/sql-performance-tuning.md
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@@ -114,6 +114,28 @@ that these options will be deprecated in future release as
more optimizations ar
</td>
<td>1.1.0</td>
</tr>
+ <tr>
+
<td><code>spark.sql.sources.parallelPartitionDiscovery.threshold</code></td>
+ <td>32</td>
+ <td>
+ Configures the threshold to enable parallel listing for job input paths.
If the number of
+ input paths is larger than this threshold, Spark will use parallel
listing on the driver side.
Review comment:
> Spark will use parallel listing on the driver side.
It sounds like Spark just runs parallel listing on the driver side using
multi-threading. How about using "Spark will list the files by using Spark
distributed job"?
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