From 7b0bc492edbbd30c6945c89d8bc5ad0f6cf42b76 Mon Sep 17 00:00:00 2001
From: Inigo Goiri <inigoiri@apache.org>
Date: Thu, 1 Nov 2018 11:49:33 -0700
Subject: [PATCH] HDFS-14024. RBF: ProvidedCapacityTotal json exception in
 NamenodeHeartbeatService. Contributed by CR Hota.

---
 .../hdfs/server/federation/router/NamenodeHeartbeatService.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/NamenodeHeartbeatService.java b/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/NamenodeHeartbeatService.java
index a1adf77bd5..1349aa3056 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/NamenodeHeartbeatService.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/NamenodeHeartbeatService.java
@@ -351,7 +351,7 @@ public class NamenodeHeartbeatService extends PeriodicService {
                 jsonObject.getLong("PendingReplicationBlocks"),
                 jsonObject.getLong("UnderReplicatedBlocks"),
                 jsonObject.getLong("PendingDeletionBlocks"),
-                jsonObject.getLong("ProvidedCapacityTotal"));
+                jsonObject.optLong("ProvidedCapacityTotal"));
           }
         }
       }