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  1. Debezium
  2. DBZ-5961

ClassCastException occurs in snapshot phase

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Details

    • Bug
    • Resolution: Unresolved
    • Major
    • under-triaging
    • None
    • mysql-connector
    • None
    • False
    • None
    • False

    Description

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      Bug report

      ClassCastException occurs in snapshot phase, here is error logs

      [2022-12-26 04:00:27,026] INFO Exporting data from table 'unionstay.reservation' (2 of 2 tables) (io.debezium.relational.RelationalSnapshotChangeEventSource)
      [2022-12-26 04:00:27,026] INFO      For table 'unionstay.reservation' using select statement: 'SELECT `reservation_id`, `reservation_status`, `error_code`, `provider_type`, `provider_code`, `provider_booking_id`, `mrt_reservation_no`, `requested_currency`, `total_payment_inclusive`, `total_payment_exclusive`, `total_payment_tax_and_fee`, `total_payment_refunded`, `reservation_profit`, `cancellation_profit`, `reservation_user_first_name`, `reservation_user_last_name`, `reservation_user_email`, `reservation_user_phone`, `partner_id`, `mrt_commission_rate`, `created_at`, `created_by`, `updated_at`, `updated_by`, `deleted_at`, `deleted_by` FROM `unionstay`.`reservation`' (io.debezium.relational.RelationalSnapshotChangeEventSource)
      [2022-12-26 04:00:27,032] INFO Snapshot - Final stage (io.debezium.pipeline.source.AbstractSnapshotChangeEventSource)
      [2022-12-26 04:00:27,032] WARN Snapshot was not completed successfully, it will be re-executed upon connector restart (io.debezium.pipeline.source.AbstractSnapshotChangeEventSource)
      [2022-12-26 04:00:27,032] ERROR Producer failure (io.debezium.pipeline.ErrorHandler)
      io.debezium.DebeziumException: java.lang.ClassCastException
          at io.debezium.pipeline.source.AbstractSnapshotChangeEventSource.execute(AbstractSnapshotChangeEventSource.java:85)
          at io.debezium.pipeline.ChangeEventSourceCoordinator.doSnapshot(ChangeEventSourceCoordinator.java:155)
          at io.debezium.pipeline.ChangeEventSourceCoordinator.executeChangeEventSources(ChangeEventSourceCoordinator.java:137)
          at io.debezium.pipeline.ChangeEventSourceCoordinator.lambda$start$0(ChangeEventSourceCoordinator.java:109)
          at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
          at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
          at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
          at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
          at java.base/java.lang.Thread.run(Thread.java:834)
      Caused by: java.lang.ClassCastException
      [2022-12-26 04:00:27,459] INFO WorkerSourceTask{id=source.mysql.union-stay-0} Committing offsets (org.apache.kafka.connect.runtime.WorkerSourceTask)
      [2022-12-26 04:00:27,459] INFO WorkerSourceTask{id=source.mysql.union-stay-0} flushing 0 outstanding messages for offset commit (org.apache.kafka.connect.runtime.WorkerSourceTask)
      [2022-12-26 04:00:27,464] INFO WorkerSourceTask{id=source.mysql.union-stay-0} Finished commitOffsets successfully in 5 ms (org.apache.kafka.connect.runtime.WorkerSourceTask)
      [2022-12-26 04:00:27,464] ERROR WorkerSourceTask{id=source.mysql.union-stay-0} Task threw an uncaught and unrecoverable exception. Task is being killed and will not recover until manually restarted (org.apache.kafka.connect.runtime.WorkerTask)
      java.lang.NullPointerException 

      What Debezium connector do you use and what version?

      2.0 mysql

      What is the connector configuration?

       

      {
          "name": "source.mysql.unionstay",
          "connector.class": "io.debezium.connector.mysql.MySqlConnector",
          "tasks.max": 1,
          "database.hostname": "unionstay-prod.cluster-cyk5pq4nt7f3.ap-northeast-2.rds.amazonaws.com",
          "database.port": 3306,
          "database.user": "DPCDC",
          "database.password": "",
          "database.include.list": "unionstay",
          "database.server.id": 57681,
          "table.include.list": "yyy",
          "column.exclude.list": "xxx",
          "include.schema.changes": "true",
          "include.schema.comments": "true",
          "schema.history.internal.kafka.topic": "unionstay.mysql.history",
          "schema.history.internal.kafka.bootstrap.servers": "xxx:9092",
          "topic.prefix": "unionstay.mysql",
          "key.converter": "io.confluent.connect.avro.AvroConverter",
          "value.converter": "io.confluent.connect.avro.AvroConverter",
          "key.converter.schema.registry.url": "http://cp-helm-charts-cp-schema-registry:8081",
          "value.converter.schema.registry.url": "http://cp-helm-charts-cp-schema-registry:8081",
          "snapshot.locking.mode": "none",
          "auto.register.schemas": "false",
          "use.latest.version": "true",
          "latest.compatibility.strict": "false",
          "database.history.skip.unparseable.ddl": "true",
          "tombstones.on.delete": "false"
      } 

       

       

      What is the captured database version and mode of depoyment?

      AWS Aurora MySQL

       

      Attachments

        1. connect class path.txt
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        3. image-2023-01-09-15-43-16-106.png
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        4. 스크린샷 2023-01-09 오후 3.39.58.png
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            Dates

              Created:
              Updated: