You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@pig.apache.org by "Pradeep Kamath (JIRA)" <ji...@apache.org> on 2008/10/24 21:19:44 UTC
[jira] Updated: (PIG-508) Query with a cogroup have one of its
inputs coming from a group fails
[ https://issues.apache.org/jira/browse/PIG-508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pradeep Kamath updated PIG-508:
-------------------------------
Status: Patch Available (was: Open)
> Query with a cogroup have one of its inputs coming from a group fails
> ---------------------------------------------------------------------
>
> Key: PIG-508
> URL: https://issues.apache.org/jira/browse/PIG-508
> Project: Pig
> Issue Type: Bug
> Affects Versions: types_branch
> Reporter: Pradeep Kamath
> Assignee: Pradeep Kamath
> Fix For: types_branch
>
>
> Script which fails:
> {code}
> a = load '/user/pig/tests/data/singlefile/studenttab10k';
> b = group a by $0;
> c = load '/user/pig/tests/data/singlefile/studenttab10k';
> d = cogroup b by $0, c by $0;
> e = foreach d generate group, c.$1, SUM(c.$1), COUNT(c);
> dump e;
> {code}
> Error message produced:
> {noformat}
> 08/10/23 15:23:54 ERROR mapReduceLayer.MapReduceLauncher: Job failed!
> 08/10/23 15:23:54 ERROR mapReduceLayer.Launcher: Error message from task (reduce) task_200810231521_0007_r_000000java.lang.NullPointerException
> at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POPackage.getNext(POPackage.java:218)
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapReduce$Reduce.reduce(PigMapReduce.java:208)
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapReduce$Reduce.reduce(PigMapReduce.java:134)
> at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:318)
> at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207)
> {noformat}
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.