Github user adrian555 commented on a diff in the pull request:
https://github.com/apache/spark/pull/22455#discussion_r219315297
--- Diff: docs/sparkr.md ---
@@ -450,6 +450,42 @@ print(model.summaries)
{% endhighlight %}
</div>
+### Eager execution
+
+If the eager execution is enabled, the data will be returned to R client
immediately when the `SparkDataFrame` is created. Eager execution can be
enabled by setting the configuration property
`spark.sql.repl.eagerEval.enabled` to `true` when the `SparkSession` is started
up.
+
+<div data-lang="r" markdown="1">
+{% highlight r %}
+
+# Start up spark session with eager execution enabled
+sparkR.session(master = "local[*]", sparkConfig =
list(spark.sql.repl.eagerEval.enabled = "true"))
+
+df <- createDataFrame(faithful)
+
+# Instead of displaying the SparkDataFrame class, displays the data
returned
--- End diff --
Done
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
