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https://issues.apache.org/jira/browse/FLINK-16580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aljoscha Krettek closed FLINK-16580.
------------------------------------
    Resolution: Invalid

> flink-connector-kafka desrializer
> ---------------------------------
>
>                 Key: FLINK-16580
>                 URL: https://issues.apache.org/jira/browse/FLINK-16580
>             Project: Flink
>          Issue Type: Wish
>          Components: Connectors / Kafka
>    Affects Versions: 1.10.0
>            Reporter: 李开青
>            Priority: Major
>
> FlinkKafkaConsumer.setDeserializer(Properties props)
> Why is ByteArrayDeserializer.class mandatory?
> I found the flink sql conf "connector.properties.key.deserializer" will lose 
> efficacy
>  
> private static void setDeserializer(Properties props) {
>  final String deSerName = ByteArrayDeserializer.class.getName();
>  Object keyDeSer = props.get(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG);
>  Object valDeSer = props.get(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG);
>  if (keyDeSer != null && !keyDeSer.equals(deSerName)) {
>  LOG.warn("Ignoring configured key DeSerializer ({})", 
> ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG);
>  }
>  if (valDeSer != null && !valDeSer.equals(deSerName)) {
>  LOG.warn("Ignoring configured value DeSerializer ({})", 
> ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG);
>  }
>  props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, deSerName);
>  props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, deSerName);
> }



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