Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/642#discussion_r12267555
--- Diff: docs/configuration.md ---
@@ -289,8 +289,7 @@ Apart from these, the following properties are also
available, and may be useful
<td>spark.closure.serializer</td>
<td>org.apache.spark.serializer.<br />JavaSerializer</td>
<td>
- Serializer class to use for closures. Generally Java is fine unless
your distributed functions
- (e.g. map functions) reference large objects in the driver program.
+ Serializer class to use for closures. Currently only the default
serializer is supported.
--- End diff --
Would it make sense for this to just say "currently only the Java
serializer is supported"? Otherwise people might think "default serializer"
means the value that `spark.serializer` is set to.
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