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From "Robert Metzger (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (FLINK-729) HashReduce based on java-util-hash-map
Date Wed, 18 Jun 2014 15:46:25 GMT

     [ https://issues.apache.org/jira/browse/FLINK-729?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Robert Metzger closed FLINK-729.

    Resolution: Invalid

I think in my understanding this pull request needs some reworking before being in a merge-able

> HashReduce based on java-util-hash-map
> --------------------------------------
>                 Key: FLINK-729
>                 URL: https://issues.apache.org/jira/browse/FLINK-729
>             Project: Flink
>          Issue Type: Bug
>            Reporter: GitHub Import
>              Labels: github-import
>             Fix For: pre-apache
>         Attachments: pull-request-729-5872621547979291368.patch
> This is a first step for the hash-aggregator, corresponding issue: https://github.com/stratosphere/stratosphere/issues/82
> This implementation is a ReduceOperator based on a hash-table, instead of sorting the
> It is just a prototype because it is still using the java-util-hash-map, and furthermore
the CostEstimation is just 0 for now. 
> This PR is based on the PR for dividing the reduce and group reduce operators(https://github.com/stratosphere/stratosphere/pull/726),
only commit bb5640a is the HashReduce code. I just opened the PR to get feedback on the current
code and how I should proceed with a stratosphere-hash-map implementation and adjusting the
> ---------------- Imported from GitHub ----------------
> Url: https://github.com/stratosphere/stratosphere/pull/729
> Created by: [filiphaase|https://github.com/filiphaase]
> Labels: 
> Created at: Mon Apr 28 12:23:25 CEST 2014
> State: open

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