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 has more to do with the failure in canceling in general. I'll point you to some build logs. It might take me some time to find them since I've triggered quite a few builds since my email.
​Cheers! Sachin​ -- Sachin Goel Computer Science, IIT Delhi m. +91-9871457685 On Mon, Aug 24, 2015 at 3:38 PM, Maximilian Michels <m...@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 <sachingoel0...@gmail.com> > wrote: > > > There appears to be some issue in DriverTestBase. I have observed two > > failures recently, once in MatchTaskTest and MapTaskTest, both with the > > 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(DriverTestBase.java:271) > > at > > > > > org.apache.flink.runtime.operators.testutils.TaskCancelThread.run(TaskCancelThread.java:60) > > > > at org.junit.Assert.fail(Assert.java:88) > > at > > > > > org.apache.flink.runtime.operators.testutils.TaskCancelThread.run(TaskCancelThread.java:68) > > > > Regards > > Sachin > > > > -- Sachin Goel > > Computer Science, IIT Delhi > > m. +91-9871457685 > > >