diff --git a/yarn/common/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala b/yarn/common/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala
index f15c813b83973c98503dba022da2df34a872f386..5f66a98e7528b773605b9087fb1ce790c766601f 100644
--- a/yarn/common/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala
+++ b/yarn/common/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala
@@ -46,7 +46,6 @@ private[spark] class ApplicationMaster(args: ApplicationMasterArguments,
   client: YarnRMClient) extends Logging {
   // TODO: Currently, task to container is computed once (TaskSetManager) - which need not be
   // optimal as more containers are available. Might need to handle this better.
-  private val ALLOCATE_HEARTBEAT_INTERVAL = 100
 
   private val sparkConf = new SparkConf()
   private val yarnConf: YarnConfiguration = new YarnConfiguration(new Configuration())