com.fasterxml.jackson.databind.JsonMappingException: Could not resolve type id 'index_kafka' into a subtype of [simple type, class io.druid.indexing.common.task.Task] at [Source: [B@6e841513; line: 1, column: 2]

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    Google Groups | 5 months ago | Gian Merlino
    com.fasterxml.jackson.databind.JsonMappingException: Could not resolve type id 'index_kafka' into a subtype of [simple type, class io.druid.indexing.common.task.Task] at [Source: [B@6e841513; line: 1, column: 2]
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    com.fasterxml.jackson.databind.JsonMappingException: Could not resolve type id 'index_kafka' into a subtype of [simple type, class io.druid.indexing.common.task.Task] at [Source: [B@5035ce8a; line: 1, column: 2]
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Root Cause Analysis

  1. com.fasterxml.jackson.databind.JsonMappingException

    Could not resolve type id 'index_kafka' into a subtype of [simple type, class io.druid.indexing.common.task.Task] at [Source: [B@6e841513; line: 1, column: 2]

    at com.fasterxml.jackson.databind.JsonMappingException.from()
  2. Jackson
    ObjectMapper.readValue
    1. com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:148)[jackson-databind-2.4.6.jar:2.4.6]
    2. com.fasterxml.jackson.databind.DeserializationContext.unknownTypeException(DeserializationContext.java:862)
    3. com.fasterxml.jackson.databind.jsontype.impl.TypeDeserializerBase._findDeserializer(TypeDeserializerBase.java:167)
    4. com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer._deserializeTypedForId(AsPropertyTypeDeserializer.java:99)
    5. com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer.deserializeTypedFromObject(AsPropertyTypeDeserializer.java:84)
    6. com.fasterxml.jackson.databind.deser.AbstractDeserializer.deserializeWithType(AbstractDeserializer.java:132)
    7. com.fasterxml.jackson.databind.deser.impl.TypeWrappedDeserializer.deserialize(TypeWrappedDeserializer.java:41)
    8. com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3066)
    9. com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2230)
    9 frames
  3. Druid Indexing
    WorkerTaskMonitor$1.childEvent
    1. io.druid.indexing.worker.WorkerTaskMonitor$1.childEvent(WorkerTaskMonitor.java:121)
    1 frame