Data is not getting written into DFS in 18.2

["Fuchs, Michael" <Mi...@fatwire.com>]

Hi,

 

I run into some issues with Hadoop 18.2 on my Linux box:

The jobs executes without any complains and they are listed in the
succeeded list but there is no output data beside the "_logs" directory.
The same code works with .17.2.1

 

Here are some sections of the logs:

[logfile]

 hadoop@bock:~/logs$ tail hadoop-hadoop-jobtracker-bock.log

2008-12-23 13:30:56,707 INFO org.apache.hadoop.mapred.JobInProgress:
Choosing a data-local task task_200812231229_0031_m_000001 for
speculation

2008-12-23 13:30:56,707 INFO org.apache.hadoop.mapred.JobTracker: Adding
task 'attempt_200812231229_0031_m_000001_1' to tip
task_200812231229_0031_m_000001, for tracker
'tracker_bock:localhost/127.0.0.1:15260'

2008-12-23 13:31:01,065 INFO org.apache.hadoop.mapred.JobInProgress:
Task 'attempt_200812231229_0031_m_000001_1' has completed
task_200812231229_0031_m_000001 successfully.

2008-12-23 13:31:03,177 INFO org.apache.hadoop.mapred.TaskRunner: Saved
output of task 'attempt_200812231229_0031_r_000000_0' to
hdfs://BOCK:9000/analytics/oiprocessed/2008/12/23/Sensor
d1/92a74190-2038-4c79-82c4-2de6fdc615db

[/logfile]

 

But the folder contains only a "_logs" folder which has a history file
which contains:

 

[logfile]

Job JOBID="job_200812231415_0001" FINISH_TIME="1230038377844"
JOB_STATUS="SUCCESS" FINISHED_MAPS="2" FINISHED_REDUCES="1"
FAILED_MAPS="0" FAILED_REDUCES="0" COUNTERS="Job Counters .Data-local
map tasks:2,Job Counters .Launched reduce tasks:1,Job Counters .Launched
map tasks:3,Map-Reduce Framework.Reduce input records:61,Map-Reduce
Framework.Map output records:61,Map-Reduce Framework.Map output
bytes:7194,Map-Reduce Framework.Combine output records:0,Map-Reduce
Framework.Map input records:61,Map-Reduce Framework.Reduce input
groups:12,Map-Reduce Framework.Combine input records:0,Map-Reduce
Framework.Map input bytes:36396,Map-Reduce Framework.Reduce output
records:12,File Systems.HDFS bytes written:1533,File Systems.Local bytes
written:14858,File Systems.HDFS bytes read:38679,File Systems.Local
bytes
read:7388,com.fatwire.analytics.scheduling.HadoopTask$Counter.MAPPEED:61
"

[/logfile]

 

So what I see is that the system runs successful and it even says it
writes data!

If I run the same code with .17.2.1 or in local mode with .18.2 it works
and I get a part-0000 file with the expected data.

 

 

Do you have any idea why it doesn't write the data?

 

 

Michael