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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-656) Input from multiple tables doesn't work with multithreading
Date Tue, 07 May 2013 00:30:17 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13650293#comment-13650293
] 

Hudson commented on GIRAPH-656:
-------------------------------

Integrated in Giraph-trunk-Commit #928 (See [https://builds.apache.org/job/Giraph-trunk-Commit/928/])
    GIRAPH-656: Input from multiple tables doesn't work with multithreading (majakabiljo)
(Revision d8baf4b80b4c98073bfd82d29ccf46b11847ee4e)

     Result = FAILURE
majakabiljo : http://git-wip-us.apache.org/repos/asf?p=giraph.git&a=commit&h=d8baf4b80b4c98073bfd82d29ccf46b11847ee4e
Files : 
* giraph-core/src/main/java/org/apache/giraph/io/internal/WrappedEdgeReader.java
* CHANGELOG
* giraph-core/src/main/java/org/apache/giraph/io/internal/WrappedVertexInputFormat.java
* giraph-core/src/main/java/org/apache/giraph/io/internal/WrappedEdgeInputFormat.java
* giraph-core/src/main/java/org/apache/giraph/io/internal/WrappedVertexReader.java
* giraph-core/src/main/java/org/apache/giraph/io/formats/multi/MultiVertexInputFormat.java
* giraph-core/src/main/java/org/apache/giraph/io/formats/multi/MultiEdgeInputFormat.java

                
> Input from multiple tables doesn't work with multithreading
> -----------------------------------------------------------
>
>                 Key: GIRAPH-656
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-656
>             Project: Giraph
>          Issue Type: Bug
>            Reporter: Maja Kabiljo
>            Assignee: Maja Kabiljo
>         Attachments: GIRAPH-656.patch
>
>
> When multithreaded input is used, and we try to use MultiEdge/VertexInput, configurations
get messed up. This happens because several threads are trying to modify the same Context
in a different way. We need to synchronize on context whenever we modify it.

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