diff --git a/core/src/main/scala/spark/storage/BlockManager.scala b/core/src/main/scala/spark/storage/BlockManager.scala
index 4753f7f956cf0c628aa3e46e7942e768b1c693a8..bb6fc34f5db2d110b65c5bf3c88a533936a95eee 100644
--- a/core/src/main/scala/spark/storage/BlockManager.scala
+++ b/core/src/main/scala/spark/storage/BlockManager.scala
@@ -932,7 +932,7 @@ object BlockManager extends Logging {
   }
 
   def getHeartBeatFrequencyFromSystemProperties: Long =
-    System.getProperty("spark.storage.blockManagerHeartBeatMs", "2000").toLong
+    System.getProperty("spark.storage.blockManagerHeartBeatMs", "5000").toLong
 
   def getDisableHeartBeatsForTesting: Boolean =
     System.getProperty("spark.test.disableBlockManagerHeartBeat", "false").toBoolean