Explain Trash process in Hadoop

Trash is very similar to Recycle Bin.It is very useful for hadoop user in case of accidental deletion of files and directories.If trash is enabled and a file is deleted, then that file is moved to the trash directory,instead of being deleted. File in .trash directory are removed permanently after a user-configurable time interval and the admin can restore that file to its original location within a time interval.

How to configure Trash in Hadoop

Steps to configure trash in hadoop:-
First stop the cluster to add a new property in core-site.xml
This property will automatically create a .Trash directory.