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Posted to dev@pig.apache.org by "Viraj Bhat (JIRA)" <ji...@apache.org> on 2011/09/15 02:06:09 UTC
[jira] [Updated] (PIG-2286) Using COR function in Piggybank results
in ERROR 2018: Internal error. Unable to introduce the combiner for
optimization
[ https://issues.apache.org/jira/browse/PIG-2286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Viraj Bhat updated PIG-2286:
----------------------------
Description:
Usage of the COR function in a Pig script, results in an error. The "studenttab5" contains student, age and gpa separated by "tab".
{code}
register /home/viraj/pig-svn/trunk/contrib/piggybank/java/piggybank.jar;
A = LOAD '/user/viraj/studenttab5' AS (name, age:double,gpa:double);
B = group A all;
C = foreach B generate group, COR(A.a, A.b);
dump C;
{code}
{quote}
2011-09-14 17:03:22,001 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to hadoop file system at: hdfs://localhost:9000
2011-09-14 17:03:22,088 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to map-reduce job tracker at: localhost:9001
2011-09-14 17:03:22,960 [main] INFO org.apache.pig.tools.pigstats.ScriptState - Pig features used in the script: GROUP_BY
2011-09-14 17:03:23,168 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MRCompiler - File concatenation threshold: 100 optimistic? false
2011-09-14 17:03:23,179 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.CombinerOptimizer - Choosing to move algebraic foreach to combiner
2011-09-14 17:03:23,186 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 2018: Internal error. Unable to introduce the combiner for optimization.
{quote}
Viraj
was:
Usage of the COR function in a Pig script, results in an error. The "studenttab5" contains student, age and gpa separated by "tab".
{code}
register /home/viraj/pig-svn/trunk/contrib/piggybank/java/piggybank.jar;
A = LOAD '/user/viraj/studenttab5' AS (name, age:double,gpa:double);
B = group A all;
C = foreach B generate group, COR(A.a, A.b);
dump C;
{code}
{verbatim}
2011-09-14 17:03:22,001 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to hadoop file system at: hdfs://localhost:9000
2011-09-14 17:03:22,088 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to map-reduce job tracker at: localhost:9001
2011-09-14 17:03:22,960 [main] INFO org.apache.pig.tools.pigstats.ScriptState - Pig features used in the script: GROUP_BY
2011-09-14 17:03:23,168 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MRCompiler - File concatenation threshold: 100 optimistic? false
2011-09-14 17:03:23,179 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.CombinerOptimizer - Choosing to move algebraic foreach to combiner
2011-09-14 17:03:23,186 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 2018: Internal error. Unable to introduce the combiner for optimization.
{verbatim}
Viraj
> Using COR function in Piggybank results in ERROR 2018: Internal error. Unable to introduce the combiner for optimization
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-2286
> URL: https://issues.apache.org/jira/browse/PIG-2286
> Project: Pig
> Issue Type: Bug
> Components: impl, piggybank
> Affects Versions: 0.9.0
> Reporter: Viraj Bhat
>
> Usage of the COR function in a Pig script, results in an error. The "studenttab5" contains student, age and gpa separated by "tab".
> {code}
> register /home/viraj/pig-svn/trunk/contrib/piggybank/java/piggybank.jar;
> A = LOAD '/user/viraj/studenttab5' AS (name, age:double,gpa:double);
> B = group A all;
> C = foreach B generate group, COR(A.a, A.b);
> dump C;
> {code}
> {quote}
> 2011-09-14 17:03:22,001 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to hadoop file system at: hdfs://localhost:9000
> 2011-09-14 17:03:22,088 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to map-reduce job tracker at: localhost:9001
> 2011-09-14 17:03:22,960 [main] INFO org.apache.pig.tools.pigstats.ScriptState - Pig features used in the script: GROUP_BY
> 2011-09-14 17:03:23,168 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MRCompiler - File concatenation threshold: 100 optimistic? false
> 2011-09-14 17:03:23,179 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.CombinerOptimizer - Choosing to move algebraic foreach to combiner
> 2011-09-14 17:03:23,186 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 2018: Internal error. Unable to introduce the combiner for optimization.
> {quote}
> Viraj
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