From 268e35d3ae75f901c47ac5c5e115ca7c039b3a61 Mon Sep 17 00:00:00 2001
From: Wei-Chiu Chuang <weichiu@apache.org>
Date: Mon, 24 Feb 2020 13:37:11 -0800
Subject: [PATCH] HDFS-15174. Optimize ReplicaCachingGetSpaceUsed by reducing
 unnecessary io operations. Contributed by Lisheng Sun.

(cherry picked from commit cb4daeaad95470125c59ccb80b988261ae83d534)
(cherry picked from commit f9437b1817e09c5a3ee7b378a0f4faee9b853315)
---
 .../datanode/fsdataset/impl/ReplicaCachingGetSpaceUsed.java     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/ReplicaCachingGetSpaceUsed.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/ReplicaCachingGetSpaceUsed.java
index 477e0501a2b..2c1c16e5dd2 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/ReplicaCachingGetSpaceUsed.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/ReplicaCachingGetSpaceUsed.java
@@ -85,7 +85,7 @@ public class ReplicaCachingGetSpaceUsed extends FSCachingGetSpaceUsed {
         for (ReplicaInfo replicaInfo : replicaInfos) {
           if (Objects.equals(replicaInfo.getVolume().getStorageID(),
               volume.getStorageID())) {
-            dfsUsed += replicaInfo.getBlockDataLength();
+            dfsUsed += replicaInfo.getBytesOnDisk();
             dfsUsed += replicaInfo.getMetadataLength();
             count++;
           }