Deleting files on Hadoop and how to recover deleted files in Hadoop

Command: hadoopfsrmr

home mm lily2 (requires you to add the Hadoop bin to the path and enable Hadoop) rmrf

home mm lily2 (this is the folder where the linux file system is removed).

Only deleted, not emptied.

This is a relatively simple situation, friends with a little computer knowledge know that the file still exists, but it is just lying on the ** station. Just go to the ** station and find out the file and drag it back or restore it.

2.After deleting the file, the ** station is also emptied.

This is the case that many friends have encountered, and it is also our main recovery in the recovery of accidentally deleted files. Emptied the ** station (or deleted it directly and did not put it in the ** station at all), In our eyes, the good return file has disappeared from the Yunliang. In fact, the files are still in the disk, as long as you do other operations on the disk of your computer, generally speaking, the files can be retrieved.

By modifying the registry you can do it.

First in"Running"Enter regedit to open the registry and locate the hkey local machime branch for Microsoft Windows CurrentVersion Explorer Desktop Nemespace

Click "New" in the blank space on the left edge, select "Primary Key", name it "645ffo40-5081-101b-9f08-00aa02f954e", and then set the key value of the "Default" primary key on the right to "**Station" to exit the registry. Restart your computer and you'll see the files you've deleted.

3.Disk manipulation or formatting took place after the file was deleted.

If this is the case of accidentally deleting files, there is no guarantee that the files will be fully recovered. This can be done with the help of some specialized software. Here we recommend EasyRecovery

EasyRecovery is a very powerful hard drive data recovery tool. It can help you recover lost data and rebuild the file system. EasyRecovery doesn't write anything to your original drive, it mainly rebuilds the file partition table in memory so that the data can be safely transferred to other drives.

You can recover data from hard drives that have been damaged by viruses or that have been formatted. This software can recover hard drives that are older than the number of years old. Long file names are supported.

Corrupted hard drive data blocks like missing boot records, BIOS parameters; partitioned tables; FAT table; The boot area can be restored by it.

If you delete a computer file by mistake, you can use a top data recovery software to recover it, and the steps are as follows:

1. Open "Accidentally Deleted File Recovery";

2. Select the folder where the lost files are located;

3. Next: Scan the files and select the files you want to recover.

4. Select the file location where the file will be saved.

5. Wait for the recovery to complete and copy the recovered files to the same location where they were lost.