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  1. Debezium
  2. DBZ-6457

Oracle parallel snapshots do not properly set PDB context when using multitenancy

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      Bug report

      For bug reports, provide this information, please:

      What Debezium connector do you use and what version?

      v2.2.0.Alpha3 (also tried with v2.2.0.Final)

      What is the connector configuration?

       

      Starting OracleConnectorTask with configuration:
      connector.class = io.debezium.connector.oracle.OracleConnector
      auto.create.topics.enable = false
      schema.history.internal.consumer.sasl.jaas.config = ********
      bootstrap.servers = <snipped>
      schema.history.internal.producer.security.protocol = SASL_SSL
      sasl.mechanism = AWS_MSK_IAM
      schema.history.internal.producer.retry.backoff.ms = 1000
      lob.enabled = true
      offset.storage.topic = <snipped>
      interval.handling.mode = string
      errors.retry.delay.initial.ms = 300
      key.converter = org.apache.kafka.connect.json.JsonConverter
      schema.history.internal.producer.sasl.mechanism = AWS_MSK_IAM
      schema.history.internal.consumer.sasl.client.callback.handler.class = software.amazon.msk.auth.iam.IAMClientCallbackHandler
      database.dbname = ORCLCDB
      database.user = c##dbzuser
      offset.storage = org.apache.kafka.connect.storage.KafkaOffsetBackingStore
      schema.history.internal.producer.sasl.client.callback.handler.class = software.amazon.msk.auth.iam.IAMClientCallbackHandler
      internal.log.mining.transaction.snapshot.boundary.mode = all
      schema.history.internal.kafka.bootstrap.servers = <snipped>
      errors.max.retries = -1
      database.password = ********
      name = oracle
      schema.history.internal.producer.sasl.jaas.config = ********
      schema.history.internal.consumer.sasl.mechanism = AWS_MSK_IAM
      schema.history.internal.producer.bootstrap.servers = <snipped>
      max.batch.size = 2048
      skipped.operations = none
      snapshot.mode = initial
      schema.history.internal.consumer.security.protocol = SASL_SSL
      max.queue.size = 8192
      tasks.max = 1
      retry.backoff.ms = 1000
      tombstones.on.delete = false
      topic.prefix = <snipped>
      offset.storage.file.filename =
      schema.history.internal.kafka.topic = <snipped>
      sasl.jaas.config = ********
      offset.storage.partitions = 1
      sasl.client.callback.handler.class = software.amazon.msk.auth.iam.IAMClientCallbackHandler
      value.converter = org.apache.kafka.connect.json.JsonConverter
      log.mining.batch.size.max = 300000
      database.pdb.name = ORCLPDB1
      schema.history.internal.consumer.bootstrap.servers = <snipped>
      log.mining.view.fetch.size = 100000
      offset.flush.timeout.ms = 2000
      errors.retry.delay.max.ms = 10000
      snapshot.max.threads = 4
      database.port = 1521
      schema.history.internal.consumer.retry.backoff.ms = 1000
      offset.flush.interval.ms = 10000
      security.protocol = SASL_SSL
      driver.connection.adapter = logminer
      schema.history.internal = io.debezium.storage.kafka.history.KafkaSchemaHistory
      database.hostname = <snipped>
      schema.name.adjustment.mode = avro
      log.mining.batch.size.min = 10000
      log.mining.batch.size.default = 20000
      offset.storage.replication.factor = 1
      driver.out.server.name = dbzxout
      table.include.list = DEBEZIUM.CUSTOMER,DEBEZIUM.DISTRICT,DEBEZIUM.HISTORY,DEBEZIUM.ITEM,DEBEZIUM.NEW_ORDER,DEBEZIUM.ORDER_LINE,DEBEZIUM.ORDERS,DEBEZIUM.STOCK,DEBEZIUM.WAREHOUSE
      

       

       

       

      What is the captured database version and mode of depoyment?

      (E.g. on-premises, with a specific cloud provider, etc.)

      Oracle 19c running in a Docker Container in AWS ECS

      What behaviour do you expect?

      Parallel Snapshot to succeed when `snapshot.max.threads` is greater than 1.

      What behaviour do you see?

      Running snapshot with `snapshot.max.threads` greater than 1 causes an error: `ORA-00942: table or view does not exist`

      Do you see the same behaviour using the latest relesead Debezium version?

      (Ideally, also verify with latest Alpha/Beta/CR version)

      Yes, I tried upgrading to v2.2.0.Final and the error still occurs

      Do you have the connector logs, ideally from start till finish?

      [io.deb.rel.RelationalSnapshotChangeEventSource] (pool-137-thread-1) Exporting data from table 'ORCLPDB1.DEBEZIUM.CUSTOMER' (1 of 9 tables)
      [io.deb.rel.RelationalSnapshotChangeEventSource] (pool-137-thread-2) Exporting data from table 'ORCLPDB1.DEBEZIUM.DISTRICT' (2 of 9 tables)
      [io.deb.rel.RelationalSnapshotChangeEventSource] (pool-137-thread-3) Exporting data from table 'ORCLPDB1.DEBEZIUM.HISTORY' (3 of 9 tables)
      [io.deb.rel.RelationalSnapshotChangeEventSource] (pool-137-thread-4) Exporting data from table 'ORCLPDB1.DEBEZIUM.ITEM' (4 of 9 tables)
      [io.deb.rel.RelationalSnapshotChangeEventSource] (debezium-oracleconnector-<snipped>-change-event-source-coordinator) Error during snapshot: java.util.concurrent.ExecutionException: org.apache.kafka.connect.errors.ConnectException: Snapshotting of table ORCLPDB1.DEBEZIUM.ITEM failed
              at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
              at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
              at io.debezium.relational.RelationalSnapshotChangeEventSource.createDataEvents(RelationalSnapshotChangeEventSource.java:440)
              at io.debezium.relational.RelationalSnapshotChangeEventSource.doExecute(RelationalSnapshotChangeEventSource.java:157)
              at io.debezium.pipeline.source.AbstractSnapshotChangeEventSource.execute(AbstractSnapshotChangeEventSource.java:76)
              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:539)
              at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
              at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
              at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
              at java.base/java.lang.Thread.run(Thread.java:833)
      Caused by: org.apache.kafka.connect.errors.ConnectException: Snapshotting of table ORCLPDB1.DEBEZIUM.ITEM failed
              at io.debezium.relational.RelationalSnapshotChangeEventSource.doCreateDataEventsForTable(RelationalSnapshotChangeEventSource.java:564)
              at io.debezium.relational.RelationalSnapshotChangeEventSource.lambda$createDataEventsForTableCallable$5(RelationalSnapshotChangeEventSource.java:492)
              at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
              ... 5 more
      Caused by: java.sql.SQLSyntaxErrorException: ORA-00942: table or view does not exist        at oracle.jdbc.driver.T4CTTIoer11.processError(T4CTTIoer11.java:630)
              at oracle.jdbc.driver.T4CTTIoer11.processError(T4CTTIoer11.java:564)
              at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:1231)
              at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:772)
              at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:299)
              at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:512)
              at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:123)
              at oracle.jdbc.driver.T4CStatement.executeForDescribe(T4CStatement.java:969)
              at oracle.jdbc.driver.OracleStatement.prepareDefineBufferAndExecute(OracleStatement.java:1271)
              at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1149)
              at oracle.jdbc.driver.OracleStatement.executeSQLSelect(OracleStatement.java:1661)
              at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1470)
              at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:2055)
              at oracle.jdbc.driver.OracleStatementWrapper.executeQuery(OracleStatementWrapper.java:394)
              at io.debezium.relational.RelationalSnapshotChangeEventSource.doCreateDataEventsForTable(RelationalSnapshotChangeEventSource.java:518)
              ... 7 more
      Caused by: Error : 942, Position : 72, Sql = SELECT "I_ID", "I_IM_ID", "I_NAME", "I_PRICE", "I_DATA" FROM "DEBEZIUM"."ITEM" AS OF SCN 2489610, OriginalSql = SELECT "I_ID", "I_IM_ID", "I_NAME", "I_PRICE", "I_DATA" FROM "DEBEZIUM"."ITEM" AS OF SCN 2489610, Error Msg = ORA-00942: table or view does not exist        at oracle.jdbc.driver.T4CTTIoer11.processError(T4CTTIoer11.java:637)
              ... 21 more 

       

       

      From the log above position 72 is the `.` in `"DEBEZIUM"."ITEM"` and a search on past issues turned up something similar - https://issues.redhat.com/browse/DBZ-4744

              ccranfor@redhat.com Chris Cranford
              bshore-edb Brandon Shore (Inactive)
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                Created:
                Updated:
                Resolved: