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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5118) Inconsistent records sent/received metrics
Date Mon, 16 Jan 2017 09:16:26 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15823662#comment-15823662

ASF GitHub Bot commented on FLINK-5118:

Github user zentol commented on the issue:

    The code checks for null since there is no *technical* contract that the returned value
is null. They aren't strictly necessary, and are only meant to guard against programming errors
in the metrics system.
    Using a ```NullCounter``` would indeed do the same, would however introduce effectively
dead code.

> Inconsistent records sent/received metrics
> ------------------------------------------
>                 Key: FLINK-5118
>                 URL: https://issues.apache.org/jira/browse/FLINK-5118
>             Project: Flink
>          Issue Type: Bug
>          Components: Metrics, Webfrontend
>    Affects Versions: 1.2.0, 1.3.0
>            Reporter: Ufuk Celebi
>            Assignee: Chesnay Schepler
>             Fix For: 1.2.0, 1.3.0
> In 1.2-SNAPSHOT running a large scale job you see that the counts for send/received records
are inconsistent, e.g. in a simple word count job we see more received records/bytes than
we see sent. This is a regression from 1.1 where everything works as expected.

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