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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-1096) Unexpected Histogram accumulator behavior
Date Thu, 11 Sep 2014 15:51:34 GMT

    [ https://issues.apache.org/jira/browse/FLINK-1096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14130168#comment-14130168

ASF GitHub Bot commented on FLINK-1096:

Github user sekruse commented on the pull request:

    Ah okay, the more you know :smiley: 
    Unfortunately, on my Windows, there seems to be an issue with the deletion of a temp file,
so that I cannot actually run the whole integration tests there. On travis, it seems to be
passing now, though.

> Unexpected Histogram accumulator behavior
> -----------------------------------------
>                 Key: FLINK-1096
>                 URL: https://issues.apache.org/jira/browse/FLINK-1096
>             Project: Flink
>          Issue Type: Bug
>            Reporter: Sebastian Kruse
>            Assignee: Sebastian Kruse
>            Priority: Trivial
> The {{Histogram}} accumulator uses the given value as both key and value for the histogram
map. Hence, the histogram always contains entries like {{key -> n * key}} where {{n}} is
the number of times that {{key}} has been added to the histogram.
> Supposedly, adding {{key}} into the histogram {{n}} times should create the entr {{key
-> n}} instead.

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