Today I formatted the namenode while the namenode and jobtracker was up. I found that I was still able to browse the file system using the command: bin/hadoop dfs -lsr /
Then, I stopped the namenode and jobtracker and did a format again. I started the namenode and jobtracker. I could still browse the file system. Is this an expected behavior or a problem? I was formatting using the command: bin/hadoop namenode -format I was running this command on the namenode machine.
