Where are your namenode and datanode storing the data? By default, it goes into the /tmp directory. You might want to move that out of there.
Amandeep Amandeep Khurana Computer Science Graduate Student University of California, Santa Cruz On Mon, Feb 16, 2009 at 8:11 PM, Mark Kerzner <[email protected]> wrote: > Hi all, > > I consistently have this problem that I can run HDFS and restart it after > short breaks of a few hours, but the next day I always have to reformat > HDFS > before the daemons begin to work. > > Is that normal? Maybe this is treated as temporary data, and the results > need to be copied out of HDFS and not stored for long periods of time? I > verified that the files in /tmp related to hadoop are seemingly intact. > > Thank you, > Mark >
