(cherry picked from commit 9195a6e302028ed3921d1016ac2fa5754f06ebf0)
(cherry picked from commit 91184299c54df18540f841cca0efe0131d05b882)
(cherry picked from commit 2816bd1f43bca3734a8eaae0b228aaa72b575792)
(cherry picked from commit 9195a6e302028ed3921d1016ac2fa5754f06ebf0)
(cherry picked from commit 55142849db02a9191db0dd6f4e1401ff19ec242a)
(cherry picked from commit 082a707bae4bb97444a34c00eecd62975807388d)
(cherry picked from commit 896dc7c7801adaa4460fa6c19a4f452a6a6112d8)
The consolidated commits in this backport are as follows:
HADOOP-14787. AliyunOSS: Implement the `createNonRecursive` operator.
HADOOP-14649. Update aliyun-sdk-oss version to 2.8.1. (Genmao Yu via rchiang)
HADOOP-14194. Aliyun OSS should not use empty endpoint as default. Contributed by Genmao Yu
HADOOP-14466. Remove useless document from TestAliyunOSSFileSystemContract.java. Contributed by Chen Liang.
HADOOP-14458. Add missing imports to TestAliyunOSSFileSystemContract.java. Contributed by Mingliang Liu.
HADOOP-14192. AliyunOSS FileSystem contract test should implement getTestBaseDir(). Contributed by Mingliang Liu
HADOOP-14072. AliyunOSS: Failed to read from stream when seek beyond the download size. Contributed by Genmao Yu
HADOOP-13769. AliyunOSS: update oss sdk version. Contributed by Genmao Yu
HADOOP-14069. AliyunOSS: listStatus returns wrong file info. Contributed by Fei Hui
HADOOP-13768. AliyunOSS: handle the failure in the batch delete operation `deleteDirs`. Contributed by Genmao Yu
HADOOP-14065. AliyunOSS: oss directory filestatus should use meta time. Contributed by Fei Hui
HADOOP-14045. Aliyun OSS documentation missing from website. Contributed by Yiqun Lin.
HADOOP-13723. AliyunOSSInputStream#read() should update read bytes stat correctly. Contributed by Mingliang Liu
HADOOP-13624. Rename TestAliyunOSSContractDispCp. Contributed by Genmao Yu
HADOOP-13591. Unit test failure in TestOSSContractGetFileStatus and TestOSSContractRootDir. Contributed by Genmao Yu
HADOOP-13481. User documents for Aliyun OSS FileSystem. Contributed by Genmao Yu.
HADOOP-12756. Incorporate Aliyun OSS file system implementation. Contributed by Mingfei Shi and Lin Zhou
(cherry picked from commit 30ab9b6aef2e3d31f2a8fc9211b5324b3d42f18e)
