You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@madlib.apache.org by "Frank McQuillan (JIRA)" <ji...@apache.org> on 2016/11/09 19:57:58 UTC
[jira] [Comment Edited] (MADLIB-992) Graph - single source shortest
path
[ https://issues.apache.org/jira/browse/MADLIB-992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15651803#comment-15651803 ]
Frank McQuillan edited comment on MADLIB-992 at 11/9/16 7:57 PM:
-----------------------------------------------------------------
Here are some additional items to consider:
* Determine how large state table is growing with current implementation
* Determine feasibility of maintaining state in C++.
* Consider implementing a min-priority queue to improve execution time. (This is probably another JIRA should we decide to do this.)
* Look at other graphs structures to test scalability
was (Author: fmcquillan):
Here are some additional tasks to consider:
* Determine how large state table is growing with current implementation
* Determine feasibility of maintaining state in C++
* Look at other graphs structures to test scalability
> Graph - single source shortest path
> -----------------------------------
>
> Key: MADLIB-992
> URL: https://issues.apache.org/jira/browse/MADLIB-992
> Project: Apache MADlib
> Issue Type: New Feature
> Components: Module: Graph
> Reporter: Frank McQuillan
> Assignee: Orhan Kislal
> Fix For: v1.10
>
> Attachments: SSSP graph scale tests.pdf, sssp-grails.sql
>
>
> Background
> The academic foundation for this work comes in part from Jignesh Patel at University of Wisconsin-Madison, who has researched how to build graph engines in relational databases [1][2][3].
> Story
> As a MADlib developer, I want to investigate how to implement shortest path in an efficient and scaleable way.
> Acceptance
> 1) Interface defined
> 2) Design document updated
> 3) Form an opinion on whether 1GB workaround can be useful to improve graph size and performance from https://issues.apache.org/jira/browse/MADLIB-991
> 4) Functional tests complete
> 5) Scaleability tests complete
> References
> [1] Grails paper
> http://pages.cs.wisc.edu/~jignesh/publ/Grail.pdf
> [2] Grails deck
> http://pages.cs.wisc.edu/~jignesh/publ/Grail-slides.pdf
> [3] Grails repo
> https://github.com/UWQuickstep/Grail
> [4] Grails generated SQL for shortest patch (attached)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)