hadoop snapshot差异性问题

[zhangyg197701]

master:/mnt/hgfs/tmp>hdfs dfs -lsr /snapshot/.snapshot
lsr: DEPRECATED: Please use 'ls -R' instead.
16/10/27 01:58:09 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
drwxr-xr-x - hadoop supergroup 0 2016-10-27 01:02 /snapshot/.snapshot/s20161027-010230.369
drwxr-xr-x - hadoop supergroup 0 2016-10-27 01:24 /snapshot/.snapshot/s20161027-012406.172
drwxr-xr-x - hadoop supergroup 0 2016-10-27 01:26 /snapshot/.snapshot/s20161027-012600.797
master:/mnt/hgfs/tmp>hdfs dfs -lsr /data1
lsr: DEPRECATED: Please use 'ls -R' instead.
16/10/27 01:58:16 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
-rw-r--r-- 3 hadoop supergroup 15779309 2016-10-27 01:23 /data1/apache-hive-2.0.0-src.tar.gz
drwxr-xr-x - hadoop supergroup 0 2016-10-26 01:55 /data1/data
-rw-r--r-- 3 hadoop supergroup 69621760 2016-10-27 01:23 /data1/hbase-1.1.3-src.tar
-rw-r--r-- 3 hadoop supergroup 186354175 2016-10-27 01:25 /data1/spark-2.0.0-bin-hadoop2.7.tgz
master:/mnt/hgfs/tmp>
master:/mnt/hgfs/tmp>
master:/mnt/hgfs/tmp>hdfs dfs -rm /data1/apache-hive-2.0.0-src.tar.gz
16/10/27 01:58:35 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
16/10/27 01:58:36 INFO fs.TrashPolicyDefault: Namenode trash configuration: Deletion interval = 0 minutes, Emptier interval = 0 minutes.
Deleted /data1/apache-hive-2.0.0-src.tar.gz
master:/mnt/hgfs/tmp>hdfs dfs -rm /data1/spark-2.0.0-bin-hadoop2.7.tgz
16/10/27 01:58:45 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
16/10/27 01:58:45 INFO fs.TrashPolicyDefault: Namenode trash configuration: Deletion interval = 0 minutes, Emptier interval = 0 minutes.
Deleted /data1/spark-2.0.0-bin-hadoop2.7.tgz
master:/mnt/hgfs/tmp>hadoop fs -createSnapshot /snapshot
16/10/27 02:00:09 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Created snapshot /snapshot/.snapshot/s20161027-020009.972
master:/mnt/hgfs/tmp>hdfs dfs -lsr /snapshot/.snapshot
lsr: DEPRECATED: Please use 'ls -R' instead.
16/10/27 02:00:24 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
drwxr-xr-x - hadoop supergroup 0 2016-10-27 01:02 /snapshot/.snapshot/s20161027-010230.369
drwxr-xr-x - hadoop supergroup 0 2016-10-27 01:24 /snapshot/.snapshot/s20161027-012406.172
drwxr-xr-x - hadoop supergroup 0 2016-10-27 01:26 /snapshot/.snapshot/s20161027-012600.797
drwxr-xr-x - hadoop supergroup 0 2016-10-27 02:00 /snapshot/.snapshot/s20161027-020009.972

master:/mnt/hgfs/tmp>hdfs snapshotDiff /snapshot s20161027-010230.369 s20161027-020009.972
16/10/27 02:01:09 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Difference between snapshot s20161027-010230.369 and snapshot s20161027-020009.972 under directory /snapshot:

为什么没有输出差异结果啊?

[zhangyg197701]

做了多少遍，都是这样的情况，怀疑hadoop快照处理是有bug的。