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From "Matthew Hayes (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DATAFU-114) Make FirstTupleFromBag implement Accumulator
Date Fri, 05 Feb 2016 01:13:39 GMT

    [ https://issues.apache.org/jira/browse/DATAFU-114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15133456#comment-15133456
] 

Matthew Hayes commented on DATAFU-114:
--------------------------------------

Try the patch in DATAFU-95 I just attached and see if that helps your build issue.  It should
work with JDK 1.7 now.

By the way, I've had good success switching Java versions using jenv (https://github.com/gcuisinier/jenv).
 Haven't tried it on Ubuntu but it seems like it would work.

Also in the future a patch+RB makes it easier to review and apply the changes.

> Make FirstTupleFromBag implement Accumulator
> --------------------------------------------
>
>                 Key: DATAFU-114
>                 URL: https://issues.apache.org/jira/browse/DATAFU-114
>             Project: DataFu
>          Issue Type: Improvement
>    Affects Versions: 1.3.0
>         Environment: All
>            Reporter: Eyal Allweil
>            Priority: Minor
>              Labels: easyfix, newbie, performance
>             Fix For: 1.3.1
>
>         Attachments: FirstTupleFromBag.java
>
>
> FirstTupleFromBag only needs the first tuple from the bag, but because it doesn't implement
Accumulator the entire bag needs to be passed to it in-memory. The fix is very minor and will
make the UDF support large bags.



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