[
https://issues.apache.org/jira/browse/FLINK-6321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16202162#comment-16202162
]
Shashank Agarwal commented on FLINK-6321:
-----------------------------------------
[~kkl0u] I am using 4-5 CEP's and around 20-22 map, flat-map and co-flatmap in
my code. Which have simple conditions like.
{code}
val successOrderPattern =
Pattern.begin[RawSignal]("event1").where(_._type.getOrElse(null).toInt == 1)
.followedBy("event2").where(signal => (signal._type.getOrElse("0").toInt
== 2 && "_creditCard".equalsIgnoreCase(signal._paymentType.getOrElse(null))))
val successOrderPatternStream = CEP.pattern(stream.keyBy((x) =>
(x._someKey1.getOrElse(0), x._someSubKey2.getOrElse(0))), successOrderPattern)
val ordersStream: DataStream[OrderSignal] =
successOrderPatternStream.select(new TransPatternFlatMap).uid("order CEP")
{code}
> RocksDB state backend Checkpointing is not working with KeyedCEP.
> -----------------------------------------------------------------
>
> Key: FLINK-6321
> URL: https://issues.apache.org/jira/browse/FLINK-6321
> Project: Flink
> Issue Type: Sub-task
> Components: CEP
> Affects Versions: 1.2.0
> Environment: yarn-cluster, RocksDB State backend, Checkpointing every
> 1000 ms
> Reporter: Shashank Agarwal
> Assignee: Kostas Kloudas
> Priority: Blocker
> Fix For: 1.4.0
>
>
> 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}
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
