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https://issues.apache.org/jira/browse/HDFS-10797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15556828#comment-15556828
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Hudson commented on HDFS-10797:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #10572 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/10572/])
HDFS-10797. Disk usage summary of snapshots causes renamed blocks to get (xiao:
rev 6a38d118d86b7907009bcec34f1b788d076f1d1c)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeSymlink.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeFile.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INode.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/snapshot/TestRenameWithSnapshots.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/Snapshot.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/DirectoryWithSnapshotFeature.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/DirectorySnapshottableFeature.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeReference.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ContentSummaryComputationContext.java
> Disk usage summary of snapshots causes renamed blocks to get counted twice
> --------------------------------------------------------------------------
>
> Key: HDFS-10797
> URL: https://issues.apache.org/jira/browse/HDFS-10797
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: snapshots
> Affects Versions: 2.8.0
> Reporter: Sean Mackrory
> Assignee: Sean Mackrory
> Fix For: 2.8.0, 3.0.0-alpha2
>
> Attachments: HDFS-10797.001.patch, HDFS-10797.002.patch,
> HDFS-10797.003.patch, HDFS-10797.004.patch, HDFS-10797.005.patch,
> HDFS-10797.006.patch, HDFS-10797.007.patch, HDFS-10797.008.patch,
> HDFS-10797.009.patch, HDFS-10797.010.patch, HDFS-10797.010.patch
>
>
> DirectoryWithSnapshotFeature.computeContentSummary4Snapshot calculates how
> much disk usage is used by a snapshot by tallying up the files in the
> snapshot that have since been deleted (that way it won't overlap with regular
> files whose disk usage is computed separately). However that is determined
> from a diff that shows moved (to Trash or otherwise) or renamed files as a
> deletion and a creation operation that may overlap with the list of blocks.
> Only the deletion operation is taken into consideration, and this causes
> those blocks to get represented twice in the disk usage tallying.
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