java.lang.ClassCastException: java.util.HashMap cannot be cast to org.apache.kafka.connect.data.Struct

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  1. 0

    Kafka connect with Cassandra Connector

    Stack Overflow | 2 weeks ago | Superbrain_bug
    java.lang.RuntimeException: java.lang.ClassCastException: java.util.HashMap cannot be cast to org.apache.kafka.connect.data.Struct
  2. 0

    java.util.HashMap unable to cast to kafka.connect.data.Struct

    Stack Overflow | 2 weeks ago | Superbrain_bug
    java.lang.ClassCastException: java.util.HashMap cannot be cast to org.apache.kafka.connect.data.Struct
  3. 0

    Casting problem

    GitHub | 2 months ago | alparslanuysal
    java.lang.RuntimeException: java.lang.ClassCastException: java.util.HashMap cannot be cast to org.apache.kafka.connect.data.Struct
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  5. 0

    GitHub comment 87#264869105

    GitHub | 3 months ago | alparslanuysal
    com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: localhost/127.0.0.1:9042 (com.datastax.driver.core.exceptions.DriverException: Error preparing query, got ERROR INVALID: unconfigured table sink_test))

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    Root Cause Analysis

    1. java.lang.ClassCastException

      java.util.HashMap cannot be cast to org.apache.kafka.connect.data.Struct

      at com.datamountaineer.streamreactor.connect.schemas.ConverterUtil$class.convert()
    2. com.datamountaineer.streamreactor
      ExecutorExtension$RunnableWrapper$$anon$1.run
      1. com.datamountaineer.streamreactor.connect.schemas.ConverterUtil$class.convert(ConverterUtil.scala:59)
      2. com.datamountaineer.streamreactor.connect.cassandra.sink.CassandraJsonWriter.convert(CassandraJsonWriter.scala:40)
      3. com.datamountaineer.streamreactor.connect.cassandra.sink.CassandraJsonWriter.com$datamountaineer$streamreactor$connect$cassandra$sink$CassandraJsonWriter$$toJson(CassandraJsonWriter.scala:154)
      4. com.datamountaineer.streamreactor.connect.cassandra.sink.CassandraJsonWriter$$anonfun$3$$anonfun$apply$1.apply$mcV$sp(CassandraJsonWriter.scala:127)
      5. com.datamountaineer.streamreactor.connect.cassandra.sink.CassandraJsonWriter$$anonfun$3$$anonfun$apply$1.apply(CassandraJsonWriter.scala:125)
      6. com.datamountaineer.streamreactor.connect.cassandra.sink.CassandraJsonWriter$$anonfun$3$$anonfun$apply$1.apply(CassandraJsonWriter.scala:125)
      7. com.datamountaineer.streamreactor.connect.concurrent.ExecutorExtension$RunnableWrapper$$anon$1.run(ExecutorExtension.scala:30)
      7 frames
    3. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      3. java.lang.Thread.run(Thread.java:745)[2017-02-13 12:36:18,067]
      3 frames