Description of problem:
Hadoop JobTracker GUI (port 50030) is reporting incorrect job counter values for some counters.  Some examples include:

"SPLIT_RAW_BYTES" is a negative number (this is a count and should be a positive integer)

"Bytes Read" is zero for jobs that are reading data. 

"Rack-local map tasks" is reported however, Hadoop-glusterfs does not have rack awareness. 

"Data-local map tasks" is not reported

Version-Release number of selected component (if applicable):


How reproducible:
100%

Steps to Reproduce:
1.Run a mapreduce job

2.open a web brower port 50030 for node running your jobtracker
for example:
http://gprfs001.sbu.lab.eng.bos.redhat.com:50030/

3. under "Completed Jobs" click on a jobid and view the job counters for that job.

Actual results:
Incorrect hadoop job counter values displayed in JobTracker GUI

Expected results:
Correct hadoop job counter values displayed in JobTracker GUI



Additional info: