Re: cannot start tasktracker because java.lang.NullPointerException

2014-09-02 Thread Dereje Teklu
Dear Harsh J; Yeah Right, I changed the source code and recompiled it. On line number 247 it says: 247 private long jobfilesize = 0;//modification I don't get what is wrong with this code. I copy and paste only this single line because tasktracker.java is too big code to copy and paste. Please

cannot start tasktracker because java.lang.NullPointerException

2014-09-01 Thread Dereje Teklu
I created Single node cluster using Hadoop 1.2.1 following Running Hadoop on Ubuntu Linux(single node cluster) http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/.However while trying to run single node cluster I found error cannot start tasktracker because

Re: cannot start tasktracker because java.lang.NullPointerException

2014-09-01 Thread Harsh J
-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/.However while trying to run single node cluster I found error cannot start tasktracker because java.lang.NullPointerException at.which is shown on log file. Tasktracker log file: 2014-08-26 23:20:07,380 INFO