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https://issues.apache.org/jira/browse/HDFS-17456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17834625#comment-17834625
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ASF GitHub Bot commented on HDFS-17456:
---------------------------------------
ZanderXu commented on code in PR #6713:
URL: https://github.com/apache/hadoop/pull/6713#discussion_r1554836176
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsVolumeImpl.java:
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@@ -1291,7 +1291,9 @@ public ReplicaInPipeline append(String bpid, ReplicaInfo
replicaInfo,
// rename meta file to rbw directory
// rename block file to rbw directory
+ long oldReplicaLength = replicaInfo.getMetadataLength() +
replicaInfo.getBlockDataLength();
Review Comment:
`long oldReplicaLength = replicaInfo.getNumBytes() +
replicaInfo.getMetadataLength();`
> Fix the dfsused statistics of datanode are incorrect when appending a file.
> ---------------------------------------------------------------------------
>
> Key: HDFS-17456
> URL: https://issues.apache.org/jira/browse/HDFS-17456
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs
> Affects Versions: 3.3.3
> Reporter: fuchaohong
> Priority: Major
>
> In our production env, the namenode page showed that the datanode space had
> been used up, but the actual datanode machine still had a lot of free space.
> After troubleshooting, the dfsused statistics of datanode are incorrect when
> appending a file. The following is the dfsused after each append of 100.
> |*Error*|*Expect*|
> |0|0|
> |100|100|
> |300|200|
> |600|300|
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