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https://issues.apache.org/jira/browse/FLINK-36604?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mingliang Liu resolved FLINK-36604.
-----------------------------------
Fix Version/s: 2.1.0
Resolution: Fixed
> StreamingJobGraphGenerator::setOperatorConfig checks input serializer lengh
> ---------------------------------------------------------------------------
>
> Key: FLINK-36604
> URL: https://issues.apache.org/jira/browse/FLINK-36604
> Project: Flink
> Issue Type: Improvement
> Components: API / DataStream
> Affects Versions: 1.18.1, 1.20.0
> Reporter: Mingliang Liu
> Assignee: Mingliang Liu
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.1.0
>
>
> Currently {{StreamingJobGraphGenerator::setOperatorConfig}} does not check
> the input serializers length, and always assumes it's valid. Actually, as
> serializers can be null and hence filtered out, the input serializers array
> could be empty. When this happens, the error message is cryptical to users,
> for example:
> {code:java}
> java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
> at
> org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator.setOperatorConfig(StreamingJobGraphGenerator.java:1081)
> at
> org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator.createChain(StreamingJobGraphGenerator.java:740)
> at
> org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator.createChain(StreamingJobGraphGenerator.java:688)
> at
> org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator.setChaining(StreamingJobGraphGenerator.java:654)
> at
> org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator.createJobGraph(StreamingJobGraphGenerator.java:254)
> at
> org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator.createJobGraph(StreamingJobGraphGenerator.java:160)
> at
> org.apache.flink.streaming.api.graph.StreamGraph.getJobGraph(StreamGraph.java:1035)
> at
> org.apache.flink.client.StreamGraphTranslator.translateToJobGraph(StreamGraphTranslator.java:56)
> at
> org.apache.flink.client.FlinkPipelineTranslationUtil.getJobGraph(FlinkPipelineTranslationUtil.java:45)
> at
> org.apache.flink.client.deployment.executors.PipelineExecutorUtils.getJobGraph(PipelineExecutorUtils.java:61)
> at
> org.apache.flink.client.deployment.executors.LocalExecutor.getJobGraph(LocalExecutor.java:105)
> at
> org.apache.flink.client.deployment.executors.LocalExecutor.execute(LocalExecutor.java:82)
> at
> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:2238)
> at
> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:2125)
> at
> org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:68)
> at
> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:2099)
> at
> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:2077)
> {code}
> We can add a precondition check and report meaningful error message for
> debugging.
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