[jira] [Commented] (FLINK-6227) Introduce the DataConsumptionException for downstream task failure

["Till Rohrmann (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-6227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16813203#comment-16813203 ] 

Till Rohrmann commented on FLINK-6227:
--------------------------------------

Thanks for taking on this issue [~zjwang]. The important bit is that the resulting exception must not be passed through the user code because it could potentially catch and change the exception.

> Introduce the DataConsumptionException for downstream task failure
> ------------------------------------------------------------------
>
>                 Key: FLINK-6227
>                 URL: https://issues.apache.org/jira/browse/FLINK-6227
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Network
>            Reporter: zhijiang
>            Assignee: zhijiang
>            Priority: Minor
>
> It is part of FLIP-1.
> We define a new special exception to indicate the downstream task failure in consuming upstream data. 
> The {{JobManager}} will receive and consider this special exception to calculate the minimum connected sub-graph which is called {{FailoverRegion}}. So the {{DataConsumptionException}} should contain {{ResultPartitionID}} information for {{JobMaster}} tracking upstream executions.



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