hadoop/hadoop-tools/hadoop-aws/src
Steve Loughran d4d4c37810
HADOOP-14630 Contract Tests to verify create, mkdirs and rename under a file is forbidden
Contributed by Steve Loughran.

Not all stores do complete validation here; in particular the S3A
Connector does not: checking up the entire directory tree to see if a path matches
is a file significantly slows things down.

This check does take place in S3A mkdirs(), which walks backwards up the list of
parent paths until it finds a directory (success) or a file (failure).
In practice production applications invariably create destination directories
before writing 1+ file into them -restricting check purely to the mkdirs()
call deliver significant speed up while implicitly including the checks.

Change-Id: I2c9df748e92b5655232e7d888d896f1868806eb0
2020-03-09 14:44:28 +00:00
..
main HADOOP-16794. S3A reverts KMS encryption to the bucket's default KMS key in rename/copy. 2020-03-02 17:31:12 +00:00
site HADOOP-14936. S3Guard: remove experimental from documentation. 2020-03-02 18:16:52 +00:00
test HADOOP-14630 Contract Tests to verify create, mkdirs and rename under a file is forbidden 2020-03-09 14:44:28 +00:00