Grokbase Groups Pig user June 2009
FAQ
Hi Pig Users,
I restate the question here:

I run my Pig embedded program and get a strange outcome. This is the
message from my console:

09/06/10 02:34:13 INFO executionengine.HExecutionEngine: Connecting to
hadoop file system at: hdfs://localhost:9000
09/06/10 02:34:14 INFO executionengine.HExecutionEngine: Connecting to
map-reduce job tracker at: localhost:9001
09/06/10 02:34:14 INFO
mapReduceLayer.MRCompiler$LastInputStreamingOptimizer: Rewrite:
POPackage->POForEach to POJoinPackage
09/06/10 02:34:14 INFO mapReduceLayer.MultiQueryOptimizer: MR plan size
before optimization: 2
09/06/10 02:34:14 INFO mapReduceLayer.MultiQueryOptimizer: Merged 0 out of
total 1 splittees.
09/06/10 02:34:14 INFO mapReduceLayer.MultiQueryOptimizer: MR plan size
after optimization: 2
09/06/10 02:34:16 INFO mapReduceLayer.JobControlCompiler: Setting up single
store job
09/06/10 02:34:16 WARN mapred.JobClient: Use GenericOptionsParser for
parsing the arguments. Applications should implement Tool for the same.
09/06/10 02:34:16 INFO mapReduceLayer.MapReduceLauncher: 0% complete
............
mapReduceLayer.MapReduceLauncher: 50% complete
BYTES WRITTEN : 70731111
09/06/10 02:34:38 INFO mapReduceLayer.JobControlCompiler: Setting up single
store job
09/06/10 02:34:39 WARN mapred.JobClient: Use GenericOptionsParser for
parsing the arguments. Applications should implement Tool for the same.
BYTES WRITTEN : 009/06/10 02:36:40 INFO mapReduceLayer.MapReduceLauncher:
100% complete

09/06/10 02:36:40 INFO mapReduceLayer.MapReduceLauncher: Successfully stored
result in: "hdfs://localhost:9000/tmp/temp-1002982376/tmp-536709268"
09/06/10 02:36:40 INFO mapReduceLayer.MapReduceLauncher: Successfully stored
result in: "TEST"
09/06/10 02:36:40 INFO *mapReduceLayer.MapReduceLauncher: Records written :

09/06/10 02:36:40 INFO mapReduceLayer.MapReduceLauncher: Bytes written : 0
*09/06/10 02:36:40 INFO mapReduceLayer.MapReduceLauncher: Success!

For some reason it write nothing into the output file. That's weird because
I can run the same script in Grunt or PigPen and get a correct ouptut.

Please help with your ideas. Thank you.

George

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