[
https://issues.apache.org/jira/browse/FLINK-15230?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
kevin updated FLINK-15230:
--------------------------
Description:
strings: { type: 'array', items:
{ type: 'string' }
}
.field("strings", Types.OBJECT_ARRAY(Types.STRING))
Exception in thread "main" org.apache.flink.table.api.ValidationException: Type
LEGACY(BasicArrayTypeInfo<String>) of table field 'strings' does not match with
type BasicArrayTypeInfo<String> of the field 'strings' of the TableSource
return type.Exception in thread "main"
org.apache.flink.table.api.ValidationException: Type
LEGACY(BasicArrayTypeInfo<String>) of table field 'strings' does not match with
type BasicArrayTypeInfo<String> of the field 'strings' of the TableSource
return type. at
org.apache.flink.table.planner.sources.TableSourceUtil$$anonfun$4.apply(TableSourceUtil.scala:121)
at
org.apache.flink.table.planner.sources.TableSourceUtil$$anonfun$4.apply(TableSourceUtil.scala:92)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186) at
scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at
scala.collection.mutable.ArrayOps$ofRef.map(ArrayOps.scala:186) at
org.apache.flink.table.planner.sources.TableSourceUtil$.computeIndexMapping(TableSourceUtil.scala:92)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecTableSourceScan.translateToPlanInternal(StreamExecTableSourceScan.scala:100)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecTableSourceScan.translateToPlanInternal(StreamExecTableSourceScan.scala:55)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:54)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecTableSourceScan.translateToPlan(StreamExecTableSourceScan.scala:55)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:86)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:46)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:54)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlan(StreamExecCalc.scala:46)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToTransformation(StreamExecSink.scala:185)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:154)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:50)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:54)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlan(StreamExecSink.scala:50)
at
org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:61)
at
org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:60)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at scala.collection.Iterator$class.foreach(Iterator.scala:891) at
scala.collection.AbstractIterator.foreach(Iterator.scala:1334) at
scala.collection.IterableLike$class.foreach(IterableLike.scala:72) at
scala.collection.AbstractIterable.foreach(Iterable.scala:54) at
scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at
scala.collection.AbstractTraversable.map(Traversable.scala:104) at
org.apache.flink.table.planner.delegation.StreamPlanner.translateToPlan(StreamPlanner.scala:60)
at
org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:149)
at
org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toDataStream(StreamTableEnvironmentImpl.java:319)
at
org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toAppendStream(StreamTableEnvironmentImpl.java:227)
at
org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toAppendStream(StreamTableEnvironmentImpl.java:218)
at com.wf.flink.sql.TableSqlJson.main(TableSqlJson.java:64) at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
use jsonSchema(JSON_SCHEMA).failOnMissingField(false)
not use .field("strings", Types.OBJECT_ARRAY(Types.STRING))
throw Exception in thread "main"
org.apache.flink.runtime.client.JobExecutionException: Job execution
failed.Exception in thread "main"
org.apache.flink.runtime.client.JobExecutionException: Job execution failed. at
org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:146)
at
org.apache.flink.runtime.minicluster.MiniCluster.executeJobBlocking(MiniCluster.java:626)
at
org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:117)
at
org.apache.flink.table.planner.delegation.StreamExecutor.execute(StreamExecutor.java:46)
at
org.apache.flink.table.api.internal.TableEnvironmentImpl.execute(TableEnvironmentImpl.java:410)
at com.wf.flink.sql.TableSqlJson.main(TableSqlJson.java:65) at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)Caused by:
java.lang.Exception:
org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException:
Could not forward element to next operator at
org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.checkThrowSourceExecutionException(SourceStreamTask.java:217)
at
org.apache.flink.streaming.runtime.tasks.SourceStreamTask.processInput(SourceStreamTask.java:133)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.run(StreamTask.java:301) at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:406)
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:705) at
org.apache.flink.runtime.taskmanager.Task.run(Task.java:530) at
java.lang.Thread.run(Thread.java:745)Caused by:
org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException:
Could not forward element to next operator at
org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:651)
at
org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:612)
at
org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:592)
at
org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:727)
at
org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:705)
at
org.apache.flink.streaming.api.operators.StreamSourceContexts$NonTimestampContext.collect(StreamSourceContexts.java:104)
at
org.apache.flink.streaming.api.operators.StreamSourceContexts$NonTimestampContext.collectWithTimestamp(StreamSourceContexts.java:111)
at
org.apache.flink.streaming.connectors.kafka.internals.AbstractFetcher.emitRecordWithTimestamp(AbstractFetcher.java:398)
at
org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher.emitRecord(KafkaFetcher.java:185)
at
org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher.runFetchLoop(KafkaFetcher.java:150)
at
org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:715)
at
org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:100)
at
org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:63)
at
org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:203)Caused
by: java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to
[Ljava.lang.String; at
org.apache.flink.api.common.typeutils.base.array.StringArraySerializer.copy(StringArraySerializer.java:35)
at
org.apache.flink.api.java.typeutils.runtime.RowSerializer.copy(RowSerializer.java:93)
at
org.apache.flink.api.java.typeutils.runtime.RowSerializer.copy(RowSerializer.java:44)
at
org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:635)
was:
strings: \{ type: 'array', items: { type: 'string' } }
.field("strings", Types.OBJECT_ARRAY(Types.STRING))
Exception in thread "main" org.apache.flink.table.api.ValidationException: Type
LEGACY(BasicArrayTypeInfo<String>) of table field 'strings' does not match with
type BasicArrayTypeInfo<String> of the field 'strings' of the TableSource
return type.Exception in thread "main"
org.apache.flink.table.api.ValidationException: Type
LEGACY(BasicArrayTypeInfo<String>) of table field 'strings' does not match with
type BasicArrayTypeInfo<String> of the field 'strings' of the TableSource
return type. at
org.apache.flink.table.planner.sources.TableSourceUtil$$anonfun$4.apply(TableSourceUtil.scala:121)
at
org.apache.flink.table.planner.sources.TableSourceUtil$$anonfun$4.apply(TableSourceUtil.scala:92)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186) at
scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at
scala.collection.mutable.ArrayOps$ofRef.map(ArrayOps.scala:186) at
org.apache.flink.table.planner.sources.TableSourceUtil$.computeIndexMapping(TableSourceUtil.scala:92)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecTableSourceScan.translateToPlanInternal(StreamExecTableSourceScan.scala:100)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecTableSourceScan.translateToPlanInternal(StreamExecTableSourceScan.scala:55)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:54)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecTableSourceScan.translateToPlan(StreamExecTableSourceScan.scala:55)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:86)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:46)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:54)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlan(StreamExecCalc.scala:46)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToTransformation(StreamExecSink.scala:185)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:154)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:50)
at
org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:54)
at
org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlan(StreamExecSink.scala:50)
at
org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:61)
at
org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:60)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at scala.collection.Iterator$class.foreach(Iterator.scala:891) at
scala.collection.AbstractIterator.foreach(Iterator.scala:1334) at
scala.collection.IterableLike$class.foreach(IterableLike.scala:72) at
scala.collection.AbstractIterable.foreach(Iterable.scala:54) at
scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at
scala.collection.AbstractTraversable.map(Traversable.scala:104) at
org.apache.flink.table.planner.delegation.StreamPlanner.translateToPlan(StreamPlanner.scala:60)
at
org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:149)
at
org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toDataStream(StreamTableEnvironmentImpl.java:319)
at
org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toAppendStream(StreamTableEnvironmentImpl.java:227)
at
org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toAppendStream(StreamTableEnvironmentImpl.java:218)
at com.wf.flink.sql.TableSqlJson.main(TableSqlJson.java:64) at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
> flink1.9.1 table API JSON schema array type exception
> -----------------------------------------------------
>
> Key: FLINK-15230
> URL: https://issues.apache.org/jira/browse/FLINK-15230
> Project: Flink
> Issue Type: Bug
> Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile), Table
> SQL / Planner
> Affects Versions: 1.9.0, 1.9.1
> Environment: flink1.9.1
> Reporter: kevin
> Priority: Major
>
> strings: { type: 'array', items:
> { type: 'string' }
> }
> .field("strings", Types.OBJECT_ARRAY(Types.STRING))
> Exception in thread "main" org.apache.flink.table.api.ValidationException:
> Type LEGACY(BasicArrayTypeInfo<String>) of table field 'strings' does not
> match with type BasicArrayTypeInfo<String> of the field 'strings' of the
> TableSource return type.Exception in thread "main"
> org.apache.flink.table.api.ValidationException: Type
> LEGACY(BasicArrayTypeInfo<String>) of table field 'strings' does not match
> with type BasicArrayTypeInfo<String> of the field 'strings' of the
> TableSource return type. at
> org.apache.flink.table.planner.sources.TableSourceUtil$$anonfun$4.apply(TableSourceUtil.scala:121)
> at
> org.apache.flink.table.planner.sources.TableSourceUtil$$anonfun$4.apply(TableSourceUtil.scala:92)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at
> scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
> at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186) at
> scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at
> scala.collection.mutable.ArrayOps$ofRef.map(ArrayOps.scala:186) at
> org.apache.flink.table.planner.sources.TableSourceUtil$.computeIndexMapping(TableSourceUtil.scala:92)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecTableSourceScan.translateToPlanInternal(StreamExecTableSourceScan.scala:100)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecTableSourceScan.translateToPlanInternal(StreamExecTableSourceScan.scala:55)
> at
> org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:54)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecTableSourceScan.translateToPlan(StreamExecTableSourceScan.scala:55)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:86)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlanInternal(StreamExecCalc.scala:46)
> at
> org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:54)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecCalc.translateToPlan(StreamExecCalc.scala:46)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToTransformation(StreamExecSink.scala:185)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:154)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:50)
> at
> org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:54)
> at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlan(StreamExecSink.scala:50)
> at
> org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:61)
> at
> org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:60)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at scala.collection.Iterator$class.foreach(Iterator.scala:891) at
> scala.collection.AbstractIterator.foreach(Iterator.scala:1334) at
> scala.collection.IterableLike$class.foreach(IterableLike.scala:72) at
> scala.collection.AbstractIterable.foreach(Iterable.scala:54) at
> scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at
> scala.collection.AbstractTraversable.map(Traversable.scala:104) at
> org.apache.flink.table.planner.delegation.StreamPlanner.translateToPlan(StreamPlanner.scala:60)
> at
> org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:149)
> at
> org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toDataStream(StreamTableEnvironmentImpl.java:319)
> at
> org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toAppendStream(StreamTableEnvironmentImpl.java:227)
> at
> org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toAppendStream(StreamTableEnvironmentImpl.java:218)
> at com.wf.flink.sql.TableSqlJson.main(TableSqlJson.java:64) at
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498) at
> com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
> use jsonSchema(JSON_SCHEMA).failOnMissingField(false)
> not use .field("strings", Types.OBJECT_ARRAY(Types.STRING))
> throw Exception in thread "main"
> org.apache.flink.runtime.client.JobExecutionException: Job execution
> failed.Exception in thread "main"
> org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
> at
> org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:146)
> at
> org.apache.flink.runtime.minicluster.MiniCluster.executeJobBlocking(MiniCluster.java:626)
> at
> org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:117)
> at
> org.apache.flink.table.planner.delegation.StreamExecutor.execute(StreamExecutor.java:46)
> at
> org.apache.flink.table.api.internal.TableEnvironmentImpl.execute(TableEnvironmentImpl.java:410)
> at com.wf.flink.sql.TableSqlJson.main(TableSqlJson.java:65) at
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498) at
> com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)Caused
> by: java.lang.Exception:
> org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException:
> Could not forward element to next operator at
> org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.checkThrowSourceExecutionException(SourceStreamTask.java:217)
> at
> org.apache.flink.streaming.runtime.tasks.SourceStreamTask.processInput(SourceStreamTask.java:133)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.run(StreamTask.java:301)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:406)
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:705) at
> org.apache.flink.runtime.taskmanager.Task.run(Task.java:530) at
> java.lang.Thread.run(Thread.java:745)Caused by:
> org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException:
> Could not forward element to next operator at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:651)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:612)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:592)
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:727)
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:705)
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$NonTimestampContext.collect(StreamSourceContexts.java:104)
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$NonTimestampContext.collectWithTimestamp(StreamSourceContexts.java:111)
> at
> org.apache.flink.streaming.connectors.kafka.internals.AbstractFetcher.emitRecordWithTimestamp(AbstractFetcher.java:398)
> at
> org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher.emitRecord(KafkaFetcher.java:185)
> at
> org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher.runFetchLoop(KafkaFetcher.java:150)
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:715)
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:100)
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:63)
> at
> org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:203)Caused
> by: java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to
> [Ljava.lang.String; at
> org.apache.flink.api.common.typeutils.base.array.StringArraySerializer.copy(StringArraySerializer.java:35)
> at
> org.apache.flink.api.java.typeutils.runtime.RowSerializer.copy(RowSerializer.java:93)
> at
> org.apache.flink.api.java.typeutils.runtime.RowSerializer.copy(RowSerializer.java:44)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:635)
>
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