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https://issues.apache.org/jira/browse/FLINK-16628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17060798#comment-17060798
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Jark Wu commented on FLINK-16628:
---------------------------------
OH, I just saw your comment [~libenchao]. And your fix is similar to me. Will
close this issue. Thanks for the link!
> Complex JSON sink into kafka error
> ----------------------------------
>
> Key: FLINK-16628
> URL: https://issues.apache.org/jira/browse/FLINK-16628
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Client
> Affects Versions: 1.10.0
> Reporter: jackray wang
> Assignee: Jark Wu
> Priority: Major
> Fix For: 1.10.1, 1.11.0
>
>
> {code:java}
> // the kafka data
> {"svt":"2020-02-24T12:58:09.209+0800"，"ops":{"id":"281708d0-4092-4c21-9233-931950b6eccf"}}{code}
>
> {code:java}
> //source table
> CREATE TABLE source_kafka_sasl (
> svt STRING,
> ops ROW<id STRING>
> ) WITH ()
> {code}
> {code:java}
> //sink table
> CREATE TABLE sink_kafka_sasl (
> svt STRING,
> ops ROW<id STRING>
> ) WITH (）
> {code}
> {code:java}
> // operating
> insert into sink_kafka_sasl
> select svt,ops from source_kafka_sasl
> {code}
> {code:java}
> Caused by: java.lang.RuntimeException: Could not serialize row
> '2020-02-24T12:58:09.209+0800,281708d0-4092-4c21-9233-931950b6eccf'. Make
> sure that the schema matches the input.
> at
> org.apache.flink.formats.json.JsonRowSerializationSchema.serialize(JsonRowSerializationSchema.java:141)
> at
> org.apache.flink.formats.json.JsonRowSerializationSchema.serialize(JsonRowSerializationSchema.java:68)
> at
> org.apache.flink.streaming.connectors.kafka.internals.KeyedSerializationSchemaWrapper.serializeValue(KeyedSerializationSchemaWrapper.java:47)
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer.invoke(FlinkKafkaProducer.java:771)
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer.invoke(FlinkKafkaProducer.java:98)
> at
> org.apache.flink.streaming.api.functions.sink.TwoPhaseCommitSinkFunction.invoke(TwoPhaseCommitSinkFunction.java:235)
> at
> org.apache.flink.streaming.api.operators.StreamSink.processElement(StreamSink.java:56)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:641)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:616)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:596)
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:730)
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:708)
> at SinkConversion$3.processElement(Unknown Source)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:641)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:616)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:596)
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:730)
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:708)
> at SourceConversion$1.processElement(Unknown Source)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:641)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:616)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:596)
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:730)
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:708)
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$ManualWatermarkContext.processAndCollectWithTimestamp(StreamSourceContexts.java:310)
> at
> org.apache.flink.streaming.api.operators.StreamSourceContexts$WatermarkContext.collectWithTimestamp(StreamSourceContexts.java:409)
> 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$LegacySourceFunctionThread.run(SourceStreamTask.java:196)
> Caused by: java.lang.ClassCastException:
> org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.NullNode
> cannot be cast to
> org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.ObjectNode
> at
> org.apache.flink.formats.json.JsonRowSerializationSchema.lambda$assembleRowConverter$dd344700$1(JsonRowSerializationSchema.java:337)
> at
> org.apache.flink.formats.json.JsonRowSerializationSchema.lambda$wrapIntoNullableConverter$1fa09b5b$1(JsonRowSerializationSchema.java:189)
> at
> org.apache.flink.formats.json.JsonRowSerializationSchema.lambda$assembleRowConverter$dd344700$1(JsonRowSerializationSchema.java:345)
> at
> org.apache.flink.formats.json.JsonRowSerializationSchema.lambda$wrapIntoNullableConverter$1fa09b5b$1(JsonRowSerializationSchema.java:189)
> at
> org.apache.flink.formats.json.JsonRowSerializationSchema.serialize(JsonRowSerializationSchema.java:138)
> ... 32 more{code}
>
>
> how can i sink a json like
> {"svt":"2020-02-24T12:58:09.209+0800"，"ops":{"id":"281708d0-4092-4c21-9233-931950b6eccf"}}
> into kafka？
>
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