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  1. Kafka
  2. KAFKA-7512

java.lang.ClassCastException: java.util.Date cannot be cast to java.lang.Number

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Blocker
    • Resolution: Duplicate
    • Affects Version/s: 2.0.0
    • Fix Version/s: None
    • Component/s: KafkaConnect
    • Labels:
      None

      Description

      Steps:

      ~~~~~~

      bash-4.2# kafka-avro-console-producer --broker-list localhost:9092 --topic connect_10oct_03 -property schema.registry.url=http://localhost:8081 --property value.schema='{"type":"record","name":"myrecord","fields":[

      {"name":"f1","type":"string"}

      ,{"name":"f2","type":["null",

      {"type":"long","logicalType":"timestamp-millis","connect.version":1,"connect.name":"org.apache.kafka.connect.data.Timestamp"}

      ],"default":null}]}'
      {"f1": "value1","f2": {"null":null}}
      {"f1": "value1","f2": {"long":1022}}

       

      bash-4.2# kafka-avro-console-producer --broker-list localhost:9092 --topic connect_10oct_03 -property schema.registry.url=http://localhost:8081 --property value.schema='{"type":"record","name":"myrecord","fields":[

      {"name":"f1","type":"string"}

      ,{"name":"f2","type":["null",

      {"type":"long","logicalType":"timestamp-millis","connect.version":1,"connect.name":"org.apache.kafka.connect.data.Timestamp"}

      ],"default":null},{"name":"f3","type":"string","default":"green"}]}'

      {"f1": "value1","f2":

      {"null":null}

      ,"f3":"toto"}

      {"f1": "value1","f2":

      {"null":null}

      ,"f3":"toto"}

      {"f1": "value1","f2":

      {"null":null}

      ,"f3":"toto"}

      {"f1": "value1","f2":

      {"long":12343536}

      ,"f3":"tutu"}

       

      bash-4.2# kafka-avro-console-producer --broker-list localhost:9092 --topic connect_10oct_03 -property schema.registry.url=http://localhost:8081 --property value.schema='{"type":"record","name":"myrecord","fields":[

      {"name":"f1","type":"string"}

      ,{"name":"f2","type":["null",

      {"type":"long","logicalType":"timestamp-millis","connect.version":1,"connect.name":"org.apache.kafka.connect.data.Timestamp"}

      ],"default":null}]}'
      {"f1": "value1","f2": {"null":null}}
      {"f1": "value1","f2": {"long":1022}}

       

      bash-4.2# curl -X POST -H "Accept: application/json" -H "Content-Type: application/json" http://localhost:8083/connectors -d '{"name":"hdfs-sink-connector-10oct-03", "config": {"connector.class":"io.confluent.connect.hdfs.HdfsSinkConnector", "tasks.max":"1", "topics":"connect_10oct_03", "hdfs.url": "hdfs://localhost:8020/tmp/", "flush.size":"1", "hive.integration": "true", "hive.metastore.uris": "thrift://localhost:9083", "hive.database": "rohit", "schema.compatibility": "BACKWARD"}}'

      {"name":"hdfs-sink-connector-10oct-03","config":

      {"connector.class":"io.confluent.connect.hdfs.HdfsSinkConnector","tasks.max":"1","topics":"connect_10oct_03","hdfs.url":"hdfs://localhost:8020/tmp/","flush.size":"1","hive.integration":"true","hive.metastore.uris":"thrift://localhost:9083","hive.database":"rohit","schema.compatibility":"BACKWARD","name":"hdfs-sink-connector-10oct-03"}

      ,"tasks":[],"type":null}bash-4.2#
      bash-4.2#

       

      bash-4.2# curl http://localhost:8083/connectors/hdfs-sink-connector-10oct-03/status

      {"name":"hdfs-sink-connector-10oct-03","connector":

      {"state":"RUNNING","worker_id":"localhost:8083"}

      ,"tasks":[

      {"state":"FAILED","trace":"org.apache.kafka.connect.errors.ConnectException: Exiting WorkerSinkTask due to unrecoverable exception.\n\tat org.apache.kafka.connect.runtime.WorkerSinkTask.deliverMessages(WorkerSinkTask.java:586)\n\tat org.apache.kafka.connect.runtime.WorkerSinkTask.poll(WorkerSinkTask.java:322)\n\tat org.apache.kafka.connect.runtime.WorkerSinkTask.iteration(WorkerSinkTask.java:225)\n\tat org.apache.kafka.connect.runtime.WorkerSinkTask.execute(WorkerSinkTask.java:193)\n\tat org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:175)\n\tat org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:219)\n\tat java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)\n\tat java.util.concurrent.FutureTask.run(FutureTask.java:266)\n\tat java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)\n\tat java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)\n\tat java.lang.Thread.run(Thread.java:748)\nCaused by: java.lang.ClassCastException: java.util.Date cannot be cast to java.lang.Number\n\tat org.apache.kafka.connect.data.SchemaProjector.projectPrimitive(SchemaProjector.java:164)\n\tat org.apache.kafka.connect.data.SchemaProjector.projectRequiredSchema(SchemaProjector.java:91)\n\tat org.apache.kafka.connect.data.SchemaProjector.project(SchemaProjector.java:73)\n\tat org.apache.kafka.connect.data.SchemaProjector.projectStruct(SchemaProjector.java:110)\n\tat org.apache.kafka.connect.data.SchemaProjector.projectRequiredSchema(SchemaProjector.java:93)\n\tat org.apache.kafka.connect.data.SchemaProjector.project(SchemaProjector.java:73)\n\tat io.confluent.connect.storage.schema.StorageSchemaCompatibility.projectInternal(StorageSchemaCompatibility.java:196)\n\tat io.confluent.connect.storage.schema.StorageSchemaCompatibility.projectInternal(StorageSchemaCompatibility.java:184)\n\tat io.confluent.connect.storage.schema.StorageSchemaCompatibility.project(StorageSchemaCompatibility.java:156)\n\tat io.confluent.connect.hdfs.TopicPartitionWriter.write(TopicPartitionWriter.java:378)\n\tat io.confluent.connect.hdfs.DataWriter.write(DataWriter.java:374)\n\tat io.confluent.connect.hdfs.HdfsSinkTask.put(HdfsSinkTask.java:109)\n\tat org.apache.kafka.connect.runtime.WorkerSinkTask.deliverMessages(WorkerSinkTask.java:564)\n\t... 10 more\n","id":0,"worker_id":"localhost:8083"}

      ],"type":"sink"}bash-4.2#
      bash-4.2#

       

      From connect logs:

      ---------------------------

      [2018-10-10 12:31:44,816] ERROR WorkerSinkTask{id=hdfs-sink-connector-10oct-03-0} Task threw an uncaught and unrecoverable exception (org.apache.kafka.connect.runtime.WorkerTask:177)
      org.apache.kafka.connect.errors.ConnectException: Exiting WorkerSinkTask due to unrecoverable exception.
              at org.apache.kafka.connect.runtime.WorkerSinkTask.deliverMessages(WorkerSinkTask.java:586)
              at org.apache.kafka.connect.runtime.WorkerSinkTask.poll(WorkerSinkTask.java:322)
              at org.apache.kafka.connect.runtime.WorkerSinkTask.iteration(WorkerSinkTask.java:225)
              at org.apache.kafka.connect.runtime.WorkerSinkTask.execute(WorkerSinkTask.java:193)
              at org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:175)
              at org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:219)
              at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
              at java.util.concurrent.FutureTask.run(FutureTask.java:266)
              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
              at java.lang.Thread.run(Thread.java:748)
      Caused by: java.lang.ClassCastException: java.util.Date cannot be cast to java.lang.Number
              at org.apache.kafka.connect.data.SchemaProjector.projectPrimitive(SchemaProjector.java:164)
              at org.apache.kafka.connect.data.SchemaProjector.projectRequiredSchema(SchemaProjector.java:91)
              at org.apache.kafka.connect.data.SchemaProjector.project(SchemaProjector.java:73)
              at org.apache.kafka.connect.data.SchemaProjector.projectStruct(SchemaProjector.java:110)
              at org.apache.kafka.connect.data.SchemaProjector.projectRequiredSchema(SchemaProjector.java:93)
              at org.apache.kafka.connect.data.SchemaProjector.project(SchemaProjector.java:73)
              at io.confluent.connect.storage.schema.StorageSchemaCompatibility.projectInternal(StorageSchemaCompatibility.java:196)
              at io.confluent.connect.storage.schema.StorageSchemaCompatibility.projectInternal(StorageSchemaCompatibility.java:184)
              at io.confluent.connect.storage.schema.StorageSchemaCompatibility.project(StorageSchemaCompatibility.java:156)
              at io.confluent.connect.hdfs.TopicPartitionWriter.write(TopicPartitionWriter.java:378)
              at io.confluent.connect.hdfs.DataWriter.write(DataWriter.java:374)
              at io.confluent.connect.hdfs.HdfsSinkTask.put(HdfsSinkTask.java:109)
              at org.apache.kafka.connect.runtime.WorkerSinkTask.deliverMessages(WorkerSinkTask.java:564)
              ... 10 more

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          168 kB
          Rohit Kumar Gupta

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              • Assignee:
                Unassigned
                Reporter:
                rohitkug Rohit Kumar Gupta
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                • Created:
                  Updated:
                  Resolved: