[HADOOP-17744] Path.suffix() raises an exception when the path is in the root dir

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.3.1
• Component/s: fs
• Assignee: Unassigned
• Reporter: Steve Loughran
• Created: 03/Jun/21 17:53
• Updated: 09/Jun/21 16:09

Description

Root cause of SPARK-34298.

If you have a Path (/something) and call suffix on it.

 new Path("/something").suffix("else")

you see an error because the path doesn't have a parent

Exception in thread "main" java.lang.IllegalArgumentException: Can not create a Path from an empty string
at org.apache.hadoop.fs.Path.checkPathArg(Path.java:168)[....]
at org.apache.hadoop.fs.Path.suffix(Path.java:446)

Issue Links

• is depended upon by: SPARK-34298 SaveMode.Overwrite not usable when using s3a root paths