[GitHub] [pulsar] xuesong172500 opened a new issue #6929: KeyValue schema in Function Error

[GitBox <gi...@apache.org>]

xuesong172500 opened a new issue #6929:
URL: https://github.com/apache/pulsar/issues/6929


   **Describe the bug**
   A clear and concise description of what the bug is.
   Use KeyValue schema in Producer
   
               Producer<KeyValue<Student, Student>> producer = client.newProducer(
                       KeyValueSchema.of(Schema.JSON(Student.class), Schema.JSON(Student.class)))
                       .topic("persistent://public/default/test-kvin2")
                       .producerName("producerTest").create();
   
   Function code:
   public class PulsarFunctionTest3 implements Function<KeyValue<Student, Student>, KeyValue<Student, Student>> {
   
       @Override
       public KeyValue<Student, Student> process(KeyValue<Student, Student> studentKeyValue, Context context) throws Exception {
           context.getLogger().info("studentKeyValue key: {}", studentKeyValue.getKey().toString());
           context.getLogger().info("studentKeyValue: {}", studentKeyValue.toString());
           return studentKeyValue;
       }
   }
   
   Pulsar Function log shows:
   java.util.concurrent.CompletionException: org.apache.pulsar.client.api.PulsarClientException$IncompatibleSchemaException: Key schemas or Value schemas are different schema type, from key schema type is JSON and to key schema is BYTES, from value schema is JSON and to value schema is BYTES
   
   **To Reproduce**
   Steps to reproduce the behavior:
   1. Go to '...'
   2. Click on '....'
   3. Scroll down to '....'
   4. See error
   
   **Expected behavior**
   A clear and concise description of what you expected to happen.
   
   **Screenshots**
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   **Desktop (please complete the following information):**
    - OS: [e.g. iOS]
   
   **Additional context**
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[GitHub] [pulsar] codelipenghui commented on issue #6929: KeyValue schema in Function Error

[GitBox <gi...@apache.org>]

codelipenghui commented on issue #6929:
URL: https://github.com/apache/pulsar/issues/6929#issuecomment-721481702


   @wolfstudy Could you please take a look at this issue?


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