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Posted to issues@flink.apache.org by "Sachin Goel (JIRA)" <ji...@apache.org> on 2015/09/30 14:38:04 UTC

[jira] [Created] (FLINK-2791) ParallelMergeITCase failure

Sachin Goel created FLINK-2791:
----------------------------------

             Summary: ParallelMergeITCase failure
                 Key: FLINK-2791
                 URL: https://issues.apache.org/jira/browse/FLINK-2791
             Project: Flink
          Issue Type: Bug
          Components: Tests
            Reporter: Sachin Goel


{{ParallelMergeITCase}} fails with deadlock
{code}
"Thread-9":
  waiting to lock monitor 0x00007f56480a93d8 (object 0x00000000f1c7eca0, a org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer),
  which is held by "StreamDiscretizer -> TumblingGroupedPreReducer -> (Filter, ExtractParts) (1/4)"
"StreamDiscretizer -> TumblingGroupedPreReducer -> (Filter, ExtractParts) (1/4)":
  waiting to lock monitor 0x00007f568ce29df8 (object 0x00000000f1c831e8, a org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy),
  which is held by "Thread-9"

Java stack information for the threads listed above:
===================================================
"Thread-9":
	at org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer.triggerOnFakeElement(StreamDiscretizer.java:121)
	- waiting to lock <0x00000000f1c7eca0> (a org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer)
	at org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer$WindowingCallback.sendFakeElement(StreamDiscretizer.java:203)
	at org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy.activeFakeElementEmission(TimeTriggerPolicy.java:117)
	- locked <0x00000000f1c831e8> (a org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy)
	at org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy$TimeCheck.run(TimeTriggerPolicy.java:144)
	at java.lang.Thread.run(Thread.java:745)
"StreamDiscretizer -> TumblingGroupedPreReducer -> (Filter, ExtractParts) (1/4)":
	at org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy.notifyTrigger(TimeTriggerPolicy.java:151)
	- waiting to lock <0x00000000f1c831e8> (a org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy)
	at org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer.processRealElement(StreamDiscretizer.java:99)
	- locked <0x00000000f1c7eca0> (a org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer)
	at org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer.processElement(StreamDiscretizer.java:73)
	at org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:170)
	- locked <0x00000000f1c772f0> (a java.lang.Object)
	at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:55)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:198)
	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:579)
	at java.lang.Thread.run(Thread.java:745)
{code}

Here's the entire build log: https://s3.amazonaws.com/archive.travis-ci.org/jobs/82894228/log.txt



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