CDH5之Trash

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1.创建test.txt

[root@sht-sgmhadoopnn-01 ~]# vi /tmp/test.txt

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2.创建文件夹

[root@sht-sgmhadoopnn-01 ~]# hadoop fs -mkdir /testdir

You have new mail in /var/spool/mail/root

[root@sht-sgmhadoopnn-01 ~]# hadoop fs -ls /

Found 4 items

drwxr-xr-x - hdfs supergroup 0 2016-02-04 00:38 /system

drwxr-xr-x - root supergroup 0 2016-02-19 08:17 /testdir

drwxrwxrwt - hdfs supergroup 0 2016-02-10 16:04 /tmp

drwxr-xr-x - hdfs supergroup 0 2016-02-10 16:02 /user

3.put 文件到hadoop

[root@sht-sgmhadoopnn-01 ~]# hadoop fs -put /tmp/test.txt /testdir

[root@sht-sgmhadoopnn-01 ~]# hadoop fs -ls /testdir

Found 1 items

-rw-r--r-- 3 root supergroup 10 2016-02-19 08:18 /testdir/test.txt

[root@sht-sgmhadoopnn-01 ~]# hadoop fs -cat /testdir/test.txt

You have mail in /var/spool/mail/root

4.删除文件夹testdir

[root@sht-sgmhadoopnn-01 ~]# hadoop fs -rm -r /testdir

16/02/19 08:27:05 INFO fs.TrashPolicyDefault: Namenode trash configuration: Deletion interval = 1440 minutes, Emptier interval = 0 minutes.

Moved: 'hdfs://sgm-nameservice/testdir' to trash at: hdfs://sgm-nameservice/user/root/.Trash/Current

Found 3 items

5.查看回收站

[root@sht-sgmhadoopnn-01 ~]# hadoop fs -ls /user/root/.Trash/Current

drwxr-xr-x - root supergroup 0 2016-02-19 08:18 /user/root/.Trash/Current/testdir

6.恢复文件夹

[root@sht-sgmhadoopnn-01 ~]# hadoop fs -mv /user/root/.Trash/Current/testdir /