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                [TOC] # 默認回收站 默認值`fs.trash.interval=0`,0表示禁用回收站,可以設置刪除文件的存活時間 默認值`fs.trash.checkpoint.interval=0`,檢查回收站的間隔時間.如果該值為0,則該值設置和`fs.trash.interval`的參數值相等 要求`fs.trash.checkpoint.interval<=fs.trash.interval` ![](https://box.kancloud.cn/6cbe96cba6004580cf585d8e3d4085a6_828x376.png) # 啟用回收站 修改core-site.xml,配置垃圾回收時間為1分鐘 ~~~ <property> <name>fs.trash.interval</name> <value>1</value> </property> ~~~ # 查看回收站 回收站在集群中,路徑 ~~~ user/x/.Trash/ ~~~ # 修改 修改訪問垃圾回收站用戶名稱 進入垃圾回收站用戶名稱,默認是dr.who修改為x用戶 core-site.xml ~~~ <property> <name>hadoop.http.staticuser.user</name> <value>x</value> </property> ~~~ 要重啟集群 # 注意 通過程序刪除的文件不會經過回收站,需要調用moveToTrash()才進入回收站 ~~~ Trash trash = new Trash(conf); trash.moveToTrash(path); ~~~ # 恢復 恢復回收站的數據 ~~~ hadoop fs -mv /user/x/.Trash/Current/user/x/input /user/x/input ~~~ # 清空回收站 并沒有立即刪除 ~~~ hadoop fs -expunge ~~~
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