Github user gzm0 commented on a diff in the pull request:
https://github.com/apache/spark/pull/4130#discussion_r23280308
--- Diff:
repl/src/main/scala/org/apache/spark/repl/ExecutorClassLoader.scala ---
@@ -91,7 +91,14 @@ class ExecutorClassLoader(conf: SparkConf, classUri:
String, parent: ClassLoader
inputStream.close()
Some(defineClass(name, bytes, 0, bytes.length))
} catch {
- case e: Exception => None
+ case e: FileNotFoundException =>
+ // We did not find the class
+ logDebug(s"Did not load class $name from REPL class server at
$uri", e)
--- End diff --
This happens whenever a class is loaded which was not defined in the REPL
(Spark Shell). But it could theoretically be an error (e.g. whole directory not
available). The class server is the server that serves the classes (i.e. the
actual `.class` files) defined in the REPL.
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