diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java
index 836ffcf81bd..00daacfa00e 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java
@@ -1508,6 +1508,7 @@ public class RSRpcServices implements HBaseRPCErrorHandler,
     WarmupRegionResponse response = WarmupRegionResponse.getDefaultInstance();
 
     try {
+      checkOpen();
       String encodedName = region.getEncodedName();
       byte[] encodedNameBytes = region.getEncodedNameAsBytes();
       final Region onlineRegion = regionServer.getFromOnlineRegions(encodedName);