1、修改$hadoop/etc/hadoop/core-site.xml文件
添加
<property>
<name>fs.trash.interval</name>
<value>分鐘</value>
<description>Number of minutes after which the checkpoint
gets deleted. If zero, the trash feature is disabled.
This option may be configured both on the server and the
client. If trash is disabled server side then the client
side configuration is checked. If trash is enabled on the
server side then the value configured on the server is
used and the client configuration value is ignored.
</description>
</property>
主要是修改value值太闺，它是以分鐘進行計算。時間到了就會清理掉文件。若不進行配置默認值是0芦昔，直接刪除峭状。
2、使用工具 notepad++
說明：使用notepad++文本工具可以直接編輯hadoop的配置文件雄卷，它會自動上傳修改內(nèi)容
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