[HADOOP-15078] dtutil ignores nonexistent files

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.0.0-alpha1
• Component/s: security
• Assignee: Unassigned
• Reporter: Jason Darrell Lowe
• Created: 30/Nov/17 19:32
• Updated: 30/Nov/17 19:32

Description

While investigating issues in HADOOP-15059 I ran the dtutil append command like this:

$ hadoop dtutil append -format protobuf foo foo.pb

expecting the append command to translate the existing tokens in file foo into the currently non-existent file foo.pb. Instead the command executed without error and overwrote foo instead of creating foo.pb as I expected. I now understand how append works, but it was very surprising to have dtutil silently ignore filenames requested on the command-line. At best it is a bit surprising to the user. At worst it clobbers data the user did not expect to be overwritten.