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From "Alessandro Presta (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-473) InputSplitPathOrganizer should be aware of multiple threads
Date Wed, 09 Jan 2013 00:02:12 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13547447#comment-13547447
] 

Alessandro Presta commented on GIRAPH-473:
------------------------------------------

Hey Eli, I was sure "mvn verify" was passing earlier, but re-running it again I get a failure
now.
I have a question for you: in TestBspBasic#testInputSplitPathOrganizer(), what is the point
of "good", "bad", "ugly"?
To me it looks like "good" is the local split, "bad" and "ugly" are both non-local, but there
is no order of preference between the two.
Am I right?
If that's the case, we should just be checking that "good" comes first.
                
> InputSplitPathOrganizer should be aware of multiple threads
> -----------------------------------------------------------
>
>                 Key: GIRAPH-473
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-473
>             Project: Giraph
>          Issue Type: Improvement
>            Reporter: Alessandro Presta
>            Assignee: Alessandro Presta
>            Priority: Minor
>         Attachments: GIRAPH-473.patch
>
>
> The starting offset for iterating over input splits is obtained by hashing the worker's
hostname and port. When multiple input threads are used, they get the same offset.
> We should hash the thread id as well.

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