Thanks,
I stopped the namenode. How can I remove an entry from the editlog?
FYI: The following action caused the mistake:
I first copied a directory from the DFS to local:
./hadoop dfs -get segments/20070622192310 .
Then, I edited this line (from my command history) to delete the directory:
./hadoop dfs -rmr segments/20070622192310 .
But forgot the dot at the end... :(
Andrzej Bialecki wrote:
Mathijs Homminga wrote:
Oops...
I executed the following command:
./hadoop dfs -rmr .
Everything on the DFS, including the trash seems to be deleted. Is
there a way to recover my data?
Depending which version of Hadoop you are running ... In 0.12.x it
would be enough to kill -9 the NameNode ASAP, and remove this deletion
operation from the editlog, before it gets re-integrated with fsimage.
DO MAKE A BACKUP OF THESE FILES FIRST !!!
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