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https://issues.apache.org/jira/browse/FLINK-9322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16483659#comment-16483659
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ASF GitHub Bot commented on FLINK-9322:
---------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/flink/pull/5990


> Add exception throwing map function that simulates failures to the general 
> purpose DataStream job
> -------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-9322
>                 URL: https://issues.apache.org/jira/browse/FLINK-9322
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Tests
>            Reporter: Tzu-Li (Gordon) Tai
>            Assignee: Tzu-Li (Gordon) Tai
>            Priority: Major
>
> The general purpose DataStream job currently does not have any functionality 
> to simulate user job failures.
> We can achieve this by:
> - Adding a simple-pass map function, that throws exceptions after a certain 
> criteria is met
> - To allow for the end-to-end tests that we have in mind, criteria could be 
> to fail after 1) processing X records, and 2) Y completed checkpoints (see 
> FLINK-8977)
> - We should also allow specifying how many times to fail. Some chaos monkey 
> tests (see FLINK-8973) would need to continuously fail several times, while 
> FLINK-8977, for example, only needs to fail once.



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