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From "Kostas Kloudas (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (FLINK-6321) RocksDB state backend Checkpointing is not working with KeydCEP.
Date Tue, 02 May 2017 09:28:04 GMT

    [ https://issues.apache.org/jira/browse/FLINK-6321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15992601#comment-15992601
] 

Kostas Kloudas edited comment on FLINK-6321 at 5/2/17 9:27 AM:
---------------------------------------------------------------

Hi [~shashank734]. It would be very helpful if you could just send me the code of 
your program and I will try to reproduce it.

Hope this is ok (you can even paste it here).



was (Author: kkl0u):
Hi [~shashank734]. It would be perfect if you could just send me the code of your program
and I will try to reproduce it.
Hope this is ok (you can even paste it here).


> RocksDB state backend Checkpointing is not working with KeydCEP.
> ----------------------------------------------------------------
>
>                 Key: FLINK-6321
>                 URL: https://issues.apache.org/jira/browse/FLINK-6321
>             Project: Flink
>          Issue Type: Bug
>          Components: CEP, State Backends, Checkpointing
>    Affects Versions: 1.2.0
>         Environment: yarn-cluster, RocksDB State backend, Checkpointing every 1000 ms
>            Reporter: Shashank Agarwal
>            Assignee: Kostas Kloudas
>
> Checkpointing is not working with RocksDBStateBackend when using CEP. It's working fine
with FsStateBackend and MemoryStateBackend. Application failing every-time.
> {code}
> 04/18/2017 21:53:20	Job execution switched to status FAILING.
> AsynchronousException{java.lang.Exception: Could not materialize checkpoint 46 for operator
KeyedCEPPatternOperator -> Map (1/4).}
> 	at org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.run(StreamTask.java:980)
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.Exception: Could not materialize checkpoint 46 for operator KeyedCEPPatternOperator
-> Map (1/4).
> 	... 6 more
> Caused by: java.util.concurrent.CancellationException
> 	at java.util.concurrent.FutureTask.report(FutureTask.java:121)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:192)
> 	at org.apache.flink.util.FutureUtil.runIfNotDoneAndGet(FutureUtil.java:40)
> 	at org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.run(StreamTask.java:915)
> 	... 5 more
> {code}



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