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From "Ankit Modi (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-1106) FR join should not spill
Date Fri, 11 Dec 2009 12:53:18 GMT

     [ https://issues.apache.org/jira/browse/PIG-1106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ankit Modi updated PIG-1106:
----------------------------

    Attachment: frjoin-nonspill.patch

This patch does not have any tests. Creating a test would be creating a big file about 250
MB and testing it.

I have ran some tests in similar fashion.


> FR join should not spill
> ------------------------
>
>                 Key: PIG-1106
>                 URL: https://issues.apache.org/jira/browse/PIG-1106
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Olga Natkovich
>            Assignee: Ankit Modi
>             Fix For: 0.7.0
>
>         Attachments: frjoin-nonspill.patch
>
>
> Currently, the values for the replicated side of the data are placed in a spillable bag
(POFRJoin near line 275). This does not make sense because the whole point of the optimization
is that the data on one side fits into memory. We already have a non-spillable bag implemented
(NonSpillableDataBag.java) and we need to change FRJoin code to use it. And of course need
to do lots of testing to make sure that we don't spill but die instead when we run out of
memory

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