The SequenceFile.createWriter methods that take a FileSystem ignore this parameter after
HADOOP-6856. This is causing some MR tests to fail and is a breaking change when users pass unqualified paths to these calls.
- is depended upon by
MAPREDUCE-2121 TestControlledMapReduceJob times out on trunk.
- is related to
HADOOP-6856 SequenceFile and MapFile need cleanup to remove redundant constructors