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HDFS-15174. Optimize ReplicaCachingGetSpaceUsed by reducing unnecessary io operations. Contributed by Lisheng Sun. 

(cherry picked from commit cb4daeaad95470125c59ccb80b988261ae83d534)
This commit is contained in:
Wei-Chiu Chuang 2020-02-24 13:37:11 -08:00
parent 92ad3bd099
commit f9437b1817
1 changed files with 1 additions and 1 deletions
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2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/ReplicaCachingGetSpaceUsed.java
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@ -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++;
}