[
https://issues.apache.org/jira/browse/FLINK-19377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17200688#comment-17200688
]
Aljoscha Krettek commented on FLINK-19377:
------------------------------------------
I observed this behaviour as far back as Flink 1.8, then I stopped going back
further.
> Task can swallow test exceptions which hides test failures
> ----------------------------------------------------------
>
> Key: FLINK-19377
> URL: https://issues.apache.org/jira/browse/FLINK-19377
> Project: Flink
> Issue Type: Bug
> Components: Runtime / State Backends, Runtime / Task, Tests
> Reporter: Aljoscha Krettek
> Priority: Critical
>
> I noticed this while debugging {{EventTimeWindowCheckpointingITCase}}. If you
> change {{testSlidingWindows()}} to use a tumbling window instead of the
> sliding window the test should fail. Interestingly, the tests only fail when
> using the RocksDB backend but not for the heap-based backends.
> You can follow the flow by setting a breakpoint on the {{AssertionError}}
> being thrown in {{ValidatingSink}}. Somewhere in the Task innards it will be
> suppressed/swallowed and the test will succeed.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
