Hadoop Hadoop-Compatible-File-System 1.5.1 reports block size correctly. Mount Fix reading stale content on replicated changes. Performance improvements: async file copying, less memory usage. Fix sporadic read errors #1541 S3 Report error to s3 when updating an object but it is already a directory. #1545 Multiple domain names for multiple buckets. #1553 Docker Allow custom command arguments #1547 Filer Support default rack