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https://issues.apache.org/jira/browse/HDFS-10956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15546553#comment-15546553
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Hudson commented on HDFS-10956:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #10541 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/10541/])
HDFS-10956. Remove rename/delete performance penalty when not using (kihwal:
rev 44f48ee96ee6b2a3909911c37bfddb0c963d5ffc)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirDeleteOp.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirRenameOp.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirSnapshotOp.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestSnapshotPathINodes.java
> Remove rename/delete performance penalty when not using snapshots
> -----------------------------------------------------------------
>
> Key: HDFS-10956
> URL: https://issues.apache.org/jira/browse/HDFS-10956
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HDFS-10956.patch
>
>
> When deleting or renaming directories, the entire subtree(s) is scanned for
> snapshottable directories. The performance penalty may become very expensive
> for dense trees. The snapshot manager knows if snapshots are in use, so
> clusters not using snapshots should not take the performance penalty.
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