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Posted to issues@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2015/11/18 19:16:11 UTC
[jira] [Resolved] (FLINK-2942) Dangling operators in web UI's
program visualization (non-deterministic)
[ https://issues.apache.org/jira/browse/FLINK-2942?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stephan Ewen resolved FLINK-2942.
---------------------------------
Resolution: Fixed
Assignee: Piotr Godek
Fix Version/s: 0.10.1
Fixed in
- 0.10.1 via 9895e3e43823be11f058a00b9c4eb0c049dd91a8
- 1.0.0 via fc6fec78685ea4add6dec15b72e08d5daac5bea4
> Dangling operators in web UI's program visualization (non-deterministic)
> ------------------------------------------------------------------------
>
> Key: FLINK-2942
> URL: https://issues.apache.org/jira/browse/FLINK-2942
> Project: Flink
> Issue Type: Bug
> Components: Webfrontend
> Affects Versions: 0.10.0
> Environment: OSX, Firefox and Chrome
> Reporter: Fabian Hueske
> Assignee: Piotr Godek
> Priority: Critical
> Fix For: 1.0.0, 0.10.1
>
> Attachments: Screen Shot 2015-10-29 at 17.11.19.png, Screen Shot 2015-10-29 at 20.51.46.png, Screen Shot 2015-10-29 at 20.52.13.png, Screen Shot 2015-11-09 at 14.48.03.png
>
>
> When visualizing a program with three {{MapPartition}} operators that branch off from an {{OuterJoin}} operator, two of the three {{MapPartition}} operators are not connected to the {{OuterJoin}} operator and appear to have no input.
> The problem is present in FireFox as well as in Chrome. I'll attach a screenshot.
> The problem and be reproduced by executing the "Cascading for the impatient" [TFIDF example program|https://github.com/Cascading/Impatient/tree/master/part5] using the [Cascading Flink Connector|https://github.com/dataArtisans/cascading-flink].
> Update: It appears that the problem is non-deterministic. I ran the same job again (same setup) and the previously missing connections were visualized. However, the UI showed only one input for a binary operator (OuterJoin). Running the job a third time resulted in a graph layout which was again different from both runs before. However, two of the {{MapPartition}} operators had not inputs just as in the first run.
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