Hadoop回收站trash,默认是关闭的。 1.修改conf/core-site.xml,增加 <property> <name>fs.trash.interval</name> <value>1440</value> <description>Number of minutes between trash checkpoints. If zero, the trash feature is disabled. </description> </property>
默认是0.单位分钟。这里我设置的是1天(60*24) 2.测试 hadoop/bin/hadoop fs -mkdir input
2)上传文件 root@master:/data/soft# hadoop/bin/hadoop fs -copyFromLocal /data/soft/file0* input
[root@master data]# hadoop fs -rmr input Moved to trash: hdfs://master:9000/user/root/input
[root@master data]# hadoop fs -ls Found 2 items drwxr-xr-x - root supergroup 0 2011-02-12 22:17 /user/root/.Trash
发现input删除,多了一个目录.Trash 5)恢复刚刚删除的目录 [root@master data]# hadoop fs -mv /user/root/.Trash/Current/user/root/input /user/root/input
[root@master data]# hadoop fs -ls input Found 2 items -rw-r--r-- 3 root supergroup 22 2011-02-12 17:40 /user/root/input/file01 -rw-r--r-- 3 root supergroup 28 2011-02-12 17:40 /user/root/input/file02
[root@master data]# hadoop fs -rmr .Trash Deleted hdfs://master:9000/user/root/.Trash |
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