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From "Daniel Halperin (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (BEAM-2096) NullPointerException in DataflowMetrics
Date Thu, 27 Apr 2017 15:21:04 GMT

    [ https://issues.apache.org/jira/browse/BEAM-2096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15986795#comment-15986795
] 

Daniel Halperin edited comment on BEAM-2096 at 4/27/17 3:20 PM:
----------------------------------------------------------------

This looks like an actual bug in the DataflowRunner exposed by actually running tests. Woo!

Pablo, if this is something you know about please take a look -- but if not something you
can handle fairly quickly then please triage forward. Needs to get fixed, but your work on
Aggregators is a better use of your time.

[~bchambers] – this type of error worries me. Before first stable release, can we make the
DataflowMetrics code more resilient to evolution of metrics representations? It seems very
hard to not break the current code.


was (Author: dhalperi@google.com):
This looks like an actual bug in the DataflowRunner exposed by actually running tests. Woo!

Pablo, if this is something you know about please take a look -- but if not something we can
triage fairly quickly then let's move on.

[~bchambers] – this type of error worries me. Before first stable release, can we make the
DataflowMetrics code more resilient to evolution of metrics representations? It seems very
hard to not break the current code.

> NullPointerException in DataflowMetrics
> ---------------------------------------
>
>                 Key: BEAM-2096
>                 URL: https://issues.apache.org/jira/browse/BEAM-2096
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-dataflow
>            Reporter: Kenneth Knowles
>            Assignee: Pablo Estrada
>            Priority: Blocker
>
> This started failing some time yesterday it looks like: https://builds.apache.org/view/Beam/job/beam_PostCommit_Java_ValidatesRunner_Dataflow/2949/#showFailuresLink
> Possible culprit at https://github.com/apache/beam/commit/4faa8feba822db000b4b42636408245422ed324d#diff-fff6f69683ac0e26db7e3ad095d7cdf0
since that is when it starting failing.



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