Hi, Could you please check if your file /data/input.txt is present on HDFS? The above error only means that the file is not present on the Hadoop file system.
try a command: hadoop fs -ls /data See if input.txt is present. Regards, Vinayak. On Sun, Jun 17, 2012 at 8:27 PM, jokkycaz <jokky...@gmail.com> wrote: > > I am encountering this error > > Exception in thread "main" java.io.IOException: Cannot open filename > /data/input.txt > > When trying to run this command on a single hadoop cluster running hadoop > .20.2 > > bin/hadoop jar sample.jar ReadHadoop /data/input.txt > > I am trying to run a .jar java program called ReadHadoop. It basically just > reads a file and outputs its contents into the cygwin command window. I > have > hadoop set up correctly. When I execute the command bin/start-all.sh and > check localhost/50070 and 50030 everything is working correctly. What > causes > this error. Any help would be GREAT!!!!!!! > -- > View this message in context: > http://old.nabble.com/Hadoop-java.io.IOexception%3A-Cannot-open-filename-tp34027586p34027586.html > Sent from the Hadoop core-user mailing list archive at Nabble.com. > >
