diff --git a/core/src/main/scala/org/apache/spark/SparkContext.scala b/core/src/main/scala/org/apache/spark/SparkContext.scala
index ebd8e946ee7a20112402be4b5aa0236c0dc4b2ca..967fec9f42bcf550631d147c097d90bd5a89f36f 100644
--- a/core/src/main/scala/org/apache/spark/SparkContext.scala
+++ b/core/src/main/scala/org/apache/spark/SparkContext.scala
@@ -265,6 +265,10 @@ class SparkContext(config: SparkConf) extends Logging with ExecutorAllocationCli
   val tachyonFolderName = externalBlockStoreFolderName
 
   def isLocal: Boolean = (master == "local" || master.startsWith("local["))
+  /**
+   * @return true if context is stopped or in the midst of stopping.
+   */
+  def isStopped: Boolean = stopped.get()
 
   // An asynchronous listener bus for Spark events
   private[spark] val listenerBus = new LiveListenerBus