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Date: Tue, 25 Aug 2015 13:30:24 +0200
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 <CANC1h_udgwVwrav=80xG38kGZOydRV7gsazmSAU9Qy_sdP-Njw@mail.gmail.com>
Subject: Re: Driver Test Base issue
From: Stephan Ewen <sewen@apache.org>
To: "dev@flink.apache.org" <dev@flink.apache.org>
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Looking into this. Seems like a wrong use of assertions in a parallel
thread, where errors are not propagated to the main JUNit thread.

On Mon, Aug 24, 2015 at 6:53 PM, Sachin Goel <sachingoel0101@gmail.com>
wrote:

> Hi Max
> I have already created a Jira for this.
> https://issues.apache.org/jira/browse/FLINK-2528
> The failing test was testCancelMatchTaskWhileMatching(), but I think it h=
as
> more to do with the failure in canceling in general. I'll point you to so=
me
> build logs. It might take me some time to find them since I've triggered
> quite a few builds since my email.
>
> =E2=80=8BCheers!
> Sachin=E2=80=8B
>
> -- Sachin Goel
> Computer Science, IIT Delhi
> m. +91-9871457685
>
> On Mon, Aug 24, 2015 at 3:38 PM, Maximilian Michels <mxm@apache.org>
> wrote:
>
> > Hi Sachin,
> >
> > Thanks for reporting. Which of the test cases failed in the MapTaskTest
> and
> > the MatchTaskTest?
> >
> > Best,
> > Max
> >
> > On Tue, Aug 18, 2015 at 5:35 PM, Sachin Goel <sachingoel0101@gmail.com>
> > wrote:
> >
> > > There appears to be some issue in DriverTestBase. I have observed two
> > > failures recently, once in MatchTaskTest and MapTaskTest, both with t=
he
> > > following trace:
> > >
> > >
> > > Exception in thread "Thread-154" java.lang.AssertionError: Canceling
> task
> > > failed: java.lang.NullPointerException
> > > at
> > >
> > >
> >
> org.apache.flink.runtime.operators.testutils.DriverTestBase.cancel(Driver=
TestBase.java:271)
> > > at
> > >
> > >
> >
> org.apache.flink.runtime.operators.testutils.TaskCancelThread.run(TaskCan=
celThread.java:60)
> > >
> > > at org.junit.Assert.fail(Assert.java:88)
> > > at
> > >
> > >
> >
> org.apache.flink.runtime.operators.testutils.TaskCancelThread.run(TaskCan=
celThread.java:68)
> > >
> > > Regards
> > > Sachin
> > >
> > > -- Sachin Goel
> > > Computer Science, IIT Delhi
> > > m. +91-9871457685
> > >
> >
>

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