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https://issues.apache.org/jira/browse/MAPREDUCE-1223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ed Kohlwey resolved MAPREDUCE-1223.
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Resolution: Invalid
After some additional testing I'm marking this as invalid. It appears that the
issue was with one of the inputs not being sorted.
> CompositeInputFormat doesn't consider all tuples when run in a local task
> tracker
> ---------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1223
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1223
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 0.20.1
> Environment: Yahoo distribution for Hadoop 0.20.1.3041192001 and
> Cloudera Distribution for Hadoop 0.20.1+133
> Reporter: Ed Kohlwey
>
> The CrossJoin class does not emit all tuples representing the cross product
> of values for a given key. The issue only occurs when using the local task
> tracker, and not when running the job on a cluster.
> Example
> {noformat}
> table 1
> k1 -> a
> table 2
> k1 ->c
> k1 ->d
> {noformat}
> The expected output is
> {noformat}
> table 1 inner join table 2
> k1->ac
> k1->ad
> {noformat}
> Instead one gets
> {noformat}
> table 1 inner join table 2
> k1->ac
> {noformat}
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