[HDFS-5059] Unnecessary permission denied error when creating/deleting snapshots with a non-existent directory

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Duplicate
• Affects Version/s: 3.0.0-alpha1
• Component/s: snapshots
• Labels: newbie
• Assignee: Andras Bokor
• Reporter: Stephen Chu
• Created: 02/Aug/13 19:15
• Updated: 03/Jun/16 00:08
• Resolved: 02/Jun/16 17:10

Description

As a non-superuser, when you create and delete a snapshot but accidentally specify a non-existent directory to snapshot, you will see an extra/unnecessary permission denied error right after the "No such file or directory" error.

[schu@hdfs-snapshots-vanilla ~]$ hdfs dfs -deleteSnapshot /user/schuf/ snap1
deleteSnapshot: `/user/schuf/': No such file or directory
deleteSnapshot: Permission denied
[schu@hdfs-snapshots-vanilla ~]$ hdfs dfs -createSnapshot /user/schuf/ snap1
createSnapshot: `/user/schuf/': No such file or directory
createSnapshot: Permission denied

As the HDFS superuser, instead of the "Permission denied" error you'll get an extra "Directory does not exist" error.

[root@hdfs-snapshots-vanilla ~]# hdfs dfs -deleteSnapshot /user/schuf/ snap1
deleteSnapshot: `/user/schuf/': No such file or directory
deleteSnapshot: Directory does not exist: /user/schuf

Issue Links

• is duplicated by: HDFS-5111 Remove duplicated error message for snapshot commands when processing invalid arguments