Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/4961#discussion_r149635569
--- Diff: flink-filesystems/flink-s3-fs-hadoop/README.md ---
@@ -0,0 +1,27 @@
+This project is a wrapper around Hadoop's s3a file system. By pulling a
smaller dependency tree and
+shading all dependencies away, this keeps the appearance of Flink being
Hadoop-free,
+from a dependency perspective.
+
+We also relocate the shaded Hadoop version to allow running in a different
+setup. For this to work, however, we needed to adapt Hadoop's
`Configuration`
+class to load a (shaded) `core-default-shaded.xml` configuration with the
+relocated class names of classes loaded via reflection
+(in the fute, we may need to extend this to `mapred-default.xml` and
`hdfs-defaults.xml` and their respective configuration classes).
--- End diff --
nit: "fute"
---
