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https://issues.apache.org/jira/browse/HDFS-12981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16466586#comment-16466586
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Hudson commented on HDFS-12981:
---
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14135 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/14135/])
HDFS-12981. renameSnapshot a Non-Existent snapshot to itself should (xiao: rev
696a4be0daac00dd3bb64801d9fbe659aef9e089)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/snapshot/TestSnapshotRename.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/test/java/org/apache/hadoop/hdfs/TestSnapshotCommands.java
> renameSnapshot a Non-Existent snapshot to itself should throw error
> ---
>
> Key: HDFS-12981
> URL: https://issues.apache.org/jira/browse/HDFS-12981
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs
>Affects Versions: 2.6.0
>Reporter: Sailesh Patel
>Assignee: Kitti Nanasi
>Priority: Minor
> Fix For: 2.10.0, 3.2.0, 3.1.1, 3.0.4
>
> Attachments: HDFS-12981-branch-2.6.0.001.patch,
> HDFS-12981-branch-2.6.0.002.patch, HDFS-12981.001.patch,
> HDFS-12981.002.patch, HDFS-12981.003.patch, HDFS-12981.004.patch
>
>
> When trying to rename a non-existent HDFS snapshot to ITSELF, there are no
> errors and exits with a success code.
> The steps to reproduce this issue is:
> hdfs dfs -mkdir /tmp/dir1
> hdfs dfsadmin -allowSnapshot /tmp/dir1
> hdfs dfs -createSnapshot /tmp/dir1 snap1_dir
> Rename from non-existent to another_non-existent : errors and return code 1.
> This is correct.
> hdfs dfs -renameSnapshot /tmp/dir1 nonexist another_nonexist :
> echo $?
>
> renameSnapshot: The snapshot nonexist does not exist for directory /tmp/dir1
> Rename from non-existent to non-existent : no errors and return code 0
> instead of Error and return code 1.
> hdfs dfs -renameSnapshot /tmp/dir1 nonexist nonexist ; echo $?
> Current behavior: No error and return code 0.
> Expected behavior: An error returned and return code 1.
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