flink-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Till Rohrmann (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-2697) Deadlock in StreamDiscretizer
Date Thu, 17 Sep 2015 15:15:04 GMT
Till Rohrmann created FLINK-2697:
------------------------------------

             Summary: Deadlock in StreamDiscretizer
                 Key: FLINK-2697
                 URL: https://issues.apache.org/jira/browse/FLINK-2697
             Project: Flink
          Issue Type: Bug
          Components: Streaming
            Reporter: Till Rohrmann


Encountered a deadlock in the {{StreamDiscretizer}}

{code}
Found one Java-level deadlock:
=============================
"Thread-11":
  waiting to lock monitor 0x00007f9d081e1ab8 (object 0x00000000ff6b4590, a org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer),
  which is held by "StreamDiscretizer -> TumblingGroupedPreReducer -> (Filter, ExtractParts)
(3/4)"
"StreamDiscretizer -> TumblingGroupedPreReducer -> (Filter, ExtractParts) (3/4)":
  waiting to lock monitor 0x00007f9d081e20e8 (object 0x00000000ff75fd88, a org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy),
  which is held by "Thread-11"

Java stack information for the threads listed above:
===================================================
"Thread-11":
	at org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer.triggerOnFakeElement(StreamDiscretizer.java:121)
	- waiting to lock <0x00000000ff6b4590> (a org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer)
	at org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer$WindowingCallback.sendFakeElement(StreamDiscretizer.java:203)
	at org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy.activeFakeElementEmission(TimeTriggerPolicy.java:117)
	- locked <0x00000000ff75fd88> (a org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy)
	at org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy$TimeCheck.run(TimeTriggerPolicy.java:144)
	at java.lang.Thread.run(Thread.java:745)
"StreamDiscretizer -> TumblingGroupedPreReducer -> (Filter, ExtractParts) (3/4)":
	at org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy.preNotifyTrigger(TimeTriggerPolicy.java:74)
	- waiting to lock <0x00000000ff75fd88> (a org.apache.flink.streaming.api.windowing.policy.TimeTriggerPolicy)
	at org.apache.flink.streaming.api.operators.windowing.StreamDiscretizer.processRealElement(StreamDiscretizer.java:91)
	- locked <0x00000000ff6b4590> (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:162)
	at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:56)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:171)
	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:581)
	at java.lang.Thread.run(Thread.java:745)

Found 1 deadlock.
{code}

https://s3.amazonaws.com/archive.travis-ci.org/jobs/80770719/log.txt



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message