diff options
Diffstat (limited to 'yarn')
| -rw-r--r-- | yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala b/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala index e9a02baafd..a2c4bc2f54 100644 --- a/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala +++ b/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala @@ -1045,7 +1045,10 @@ object Client extends Logging { s"in favor of the $CONF_SPARK_JAR configuration variable.") System.getenv(ENV_SPARK_JAR) } else { - SparkContext.jarOfClass(this.getClass).head + SparkContext.jarOfClass(this.getClass).getOrElse(throw new SparkException("Could not " + + "find jar containing Spark classes. The jar can be defined using the " + + "spark.yarn.jar configuration option. If testing Spark, either set that option or " + + "make sure SPARK_PREPEND_CLASSES is not set.")) } } |