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https://issues.apache.org/jira/browse/FLINK-1096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14130168#comment-14130168
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ASF GitHub Bot commented on FLINK-1096:
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Github user sekruse commented on the pull request:
https://github.com/apache/incubator-flink/pull/117#issuecomment-55284546
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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