[jira] [Commented] (PIG-4874) Remove schema tuple reference overhead for replicate join hashmap

["Koji Noguchi (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-4874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15248164#comment-15248164 ] 

Koji Noguchi commented on PIG-4874:
-----------------------------------

I won't be able to review this patch well, but one very minor thing I did notice

{code:title=TestSchemaTuple.java}
651         List<Tuple> bar2 = data.get("bar1");
{code}
This should be "bar2".



> Remove schema tuple reference overhead for replicate join hashmap
> -----------------------------------------------------------------
>
>                 Key: PIG-4874
>                 URL: https://issues.apache.org/jira/browse/PIG-4874
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Rohini Palaniswamy
>            Assignee: Rohini Palaniswamy
>             Fix For: 0.16.0
>
>         Attachments: PIG-4874-1.patch
>
>
> Currently even if pig.schematuple is set to false which is the default, the usage of TupleToMapKey and TuplesToSchemaTupleList instead of plain HashMap<Object, ArrayList<Tuple>> costs a lot of memory.  Also key is currently converted to a tuple which is unnecessary. 



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