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https://issues.apache.org/jira/browse/FLINK-32513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17834798#comment-17834798
]
Zhu Zhu edited comment on FLINK-32513 at 4/8/24 6:27 AM:
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{{Transformation}} is not a public interface, it is an @Internal class.
Ideally, kafka connectors should not directly manipulate {{Transformation}}.
Yet we may try to find a workaround to avoid break existing kafka connectors.
was (Author: zhuzh):
{{Transformation}} is not a public interface, it is an @Internal class.
Ideally, kafka connectors should not directly manipulate {{Transformation}}.
Production-wise, we may take a look whether there is a workaround to avoid
break existing kafka connectors.
> Job in BATCH mode with a significant number of transformations freezes on
> method StreamGraphGenerator.existsUnboundedSource()
> -----------------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-32513
> URL: https://issues.apache.org/jira/browse/FLINK-32513
> Project: Flink
> Issue Type: Bug
> Affects Versions: 1.15.3, 1.16.1, 1.17.1
> Environment: All modes (local, k8s session, k8s application, ...)
> Flink 1.15.3
> Flink 1.16.1
> Flink 1.17.1
> Reporter: Vladislav Keda
> Assignee: Jeyhun Karimov
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.18.2, 1.20.0, 1.19.1
>
> Attachments: image-2023-07-10-17-26-46-544.png
>
>
> Flink job executed in BATCH mode with a significant number of transformations
> (more than 30 in my case) takes very long time to start due to the method
> StreamGraphGenerator.existsUnboundedSource(). Also, during the execution of
> the method, a lot of memory is consumed, which causes the GC to fire
> frequently.
> Thread Dump:
> {code:java}
> "main@1" prio=5 tid=0x1 nid=NA runnable
> java.lang.Thread.State: RUNNABLE
> at java.util.ArrayList.addAll(ArrayList.java:702)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:224)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.PartitionTransformation.getTransitivePredecessors(PartitionTransformation.java:95)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:223)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.PartitionTransformation.getTransitivePredecessors(PartitionTransformation.java:95)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:223)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.PartitionTransformation.getTransitivePredecessors(PartitionTransformation.java:95)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:224)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.PartitionTransformation.getTransitivePredecessors(PartitionTransformation.java:95)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:224)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.PartitionTransformation.getTransitivePredecessors(PartitionTransformation.java:95)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:223)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.PartitionTransformation.getTransitivePredecessors(PartitionTransformation.java:95)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:224)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.PartitionTransformation.getTransitivePredecessors(PartitionTransformation.java:95)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:224)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.PartitionTransformation.getTransitivePredecessors(PartitionTransformation.java:95)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:224)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.PartitionTransformation.getTransitivePredecessors(PartitionTransformation.java:95)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:223)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.PartitionTransformation.getTransitivePredecessors(PartitionTransformation.java:95)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:224)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.PartitionTransformation.getTransitivePredecessors(PartitionTransformation.java:95)
> at
> org.apache.flink.streaming.api.transformations.TwoInputTransformation.getTransitivePredecessors(TwoInputTransformation.java:224)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.transformations.OneInputTransformation.getTransitivePredecessors(OneInputTransformation.java:174)
> at
> org.apache.flink.streaming.api.graph.StreamGraphGenerator.lambda$existsUnboundedSource$1(StreamGraphGenerator.java:509)
> at
> org.apache.flink.streaming.api.graph.StreamGraphGenerator$$Lambda$1988.1989814391.test(Unknown
> Source:-1)
> at java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90)
> at
> java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1632)
> at
> java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
> at
> java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
> at
> java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
> at
> java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230)
> at
> java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196)
> at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at
> java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:528)
> at
> org.apache.flink.streaming.api.graph.StreamGraphGenerator.existsUnboundedSource(StreamGraphGenerator.java:506)
> at
> org.apache.flink.streaming.api.graph.StreamGraphGenerator.shouldExecuteInBatchMode(StreamGraphGenerator.java:487)
> at
> org.apache.flink.streaming.api.graph.StreamGraphGenerator.generate(StreamGraphGenerator.java:313)
> at
> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.getStreamGraph(StreamExecutionEnvironment.java:2248)
> at
> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.getStreamGraph(StreamExecutionEnvironment.java:2239)
> at
> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.getStreamGraph(StreamExecutionEnvironment.java:2225)
> at
> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:2052){code}
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