huang714669 opened a new issue, #4588: URL: https://github.com/apache/incubator-seatunnel/issues/4588
### Search before asking - [X] I had searched in the [issues](https://github.com/apache/incubator-seatunnel/issues?q=is%3Aissue+label%3A%22bug%22) and found no similar issues. ### What happened My purpose is useing mysql-cdc to sync a mysql table data to another datasource. The source is mysql-cdc, and sink is jdbc, the source table and target table are share same schema, without any transform. You can get the error msg below: > 023-04-17 11:24:47,547 WARN org.apache.seatunnel.engine.server.TaskExecutionService - [localhost]:5801 [seatunnel-794297] [5.1] Exception in org.apache.seatunnel.engine.server.task.TransformSeaTunnelTask@b7c68a0 java.lang.RuntimeException: java.lang.NullPointerException: sql must not be null. at org.apache.seatunnel.engine.server.task.flow.SinkFlowLifeCycle.received(SinkFlowLifeCycle.java:206) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.flow.SinkFlowLifeCycle.received(SinkFlowLifeCycle.java:59) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.SeaTunnelTransformCollector.collect(SeaTunnelTransformCollector.java:39) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.SeaTunnelTransformCollector.collect(SeaTunnelTransformCollector.java:27) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.group.queue.IntermediateBlockingQueue.handleRecord(IntermediateBlockingQueue.java:71) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.group.queue.IntermediateBlockingQueue.collect(IntermediateBlockingQueue.java:51) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.flow.IntermediateQueueFlowLifeCycle.collect(IntermediateQueueFlowLifeCycle.java:52) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.TransformSeaTunnelTask.collect(TransformSeaTunnelTask.java:73) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.SeaTunnelTask.stateProcess(SeaTunnelTask.java:161) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.TransformSeaTunnelTask.call(TransformSeaTunnelTask.java:78) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.TaskExecutionService$BlockingWorker.run(TaskExecutionService.java:526) [seatunnel-starter.jar:2.3.1] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?] at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?] at java.lang.Thread.run(Thread.java:829) [?:?] Caused by: java.lang.NullPointerException: sql must not be null. at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:895) ~[connector-cdc-mysql-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.executor.FieldNamedPreparedStatement.prepareStatement(FieldNamedPreparedStatement.java:622) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.JdbcOutputFormatBuilder.lambda$createSimpleExecutor$9(JdbcOutputFormatBuilder.java:244) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.executor.SimpleBatchStatementExecutor.prepareStatements(SimpleBatchStatementExecutor.java:40) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.executor.BufferedBatchStatementExecutor.prepareStatements(BufferedBatchStatementExecutor.java:39) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.JdbcOutputFormat.createAndOpenStatementExecutor(JdbcOutputFormat.java:121) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.JdbcOutputFormat.open(JdbcOutputFormat.java:84) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.sink.JdbcSinkWriter.tryOpen(JdbcSinkWriter.java:68) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.sink.JdbcSinkWriter.prepareCommit(JdbcSinkWriter.java:86) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.engine.server.task.flow.SinkFlowLifeCycle.received(SinkFlowLifeCycle.java:158) ~[seatunnel-starter.jar:2.3.1] ... 15 more 2023-04-17 11:24:47,551 INFO org.apache.seatunnel.engine.server.TaskExecutionService - [localhost]:5801 [seatunnel-794297] [5.1] taskDone, taskId = 50000, taskGroup = TaskGroupLocation{jobId=700184840061845505, pipelineId=1, taskGroupId=30000} 2023-04-17 11:24:47,551 WAR ### SeaTunnel Version 2.3.1 ### SeaTunnel Config ```conf { "env" : { "job.mode" : "STREAMING", "execution.parallelism" : 1, "checkpoint.interval" : 10000 }, "source" : [ { "base-url" : "jdbc:mysql://xx:3306/xx", "password" : "xx", "startup.mode" : "initial", "debezium" : { "snapshot.mode" : "never", "decimal.handling.mode" : "double" }, "parallelism" : 1, "table-names" : [ "xx.xx" ], "result_table_name" : "fake", "plugin_name" : "MySQL-CDC", "server-id" : 5656, "username" : "root" } ], "transform" : [], "sink" : [ { "password" : "xx", "primary_keys" : [ "xx" ], "driver" : "com.mysql.cj.jdbc.Driver", "support_upsert_by_query_primary_key_exist" : true, "plugin_name" : "jdbc", "user" : "xx", "url" : "jdbc:mysql://10.129.72.61:3306/xx", "table" : "xx" } ] } ``` ### Running Command ```shell ./bin/seatunnel.sh --config ./config/v2.mysqlcdc.conf.template -e local ``` ### Error Exception ```log > 023-04-17 11:24:47,547 WARN org.apache.seatunnel.engine.server.TaskExecutionService - [localhost]:5801 [seatunnel-794297] [5.1] Exception in org.apache.seatunnel.engine.server.task.TransformSeaTunnelTask@b7c68a0 java.lang.RuntimeException: java.lang.NullPointerException: sql must not be null. at org.apache.seatunnel.engine.server.task.flow.SinkFlowLifeCycle.received(SinkFlowLifeCycle.java:206) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.flow.SinkFlowLifeCycle.received(SinkFlowLifeCycle.java:59) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.SeaTunnelTransformCollector.collect(SeaTunnelTransformCollector.java:39) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.SeaTunnelTransformCollector.collect(SeaTunnelTransformCollector.java:27) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.group.queue.IntermediateBlockingQueue.handleRecord(IntermediateBlockingQueue.java:71) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.group.queue.IntermediateBlockingQueue.collect(IntermediateBlockingQueue.java:51) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.flow.IntermediateQueueFlowLifeCycle.collect(IntermediateQueueFlowLifeCycle.java:52) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.TransformSeaTunnelTask.collect(TransformSeaTunnelTask.java:73) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.SeaTunnelTask.stateProcess(SeaTunnelTask.java:161) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.task.TransformSeaTunnelTask.call(TransformSeaTunnelTask.java:78) ~[seatunnel-starter.jar:2.3.1] at org.apache.seatunnel.engine.server.TaskExecutionService$BlockingWorker.run(TaskExecutionService.java:526) [seatunnel-starter.jar:2.3.1] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?] at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?] at java.lang.Thread.run(Thread.java:829) [?:?] Caused by: java.lang.NullPointerException: sql must not be null. at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:895) ~[connector-cdc-mysql-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.executor.FieldNamedPreparedStatement.prepareStatement(FieldNamedPreparedStatement.java:622) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.JdbcOutputFormatBuilder.lambda$createSimpleExecutor$9(JdbcOutputFormatBuilder.java:244) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.executor.SimpleBatchStatementExecutor.prepareStatements(SimpleBatchStatementExecutor.java:40) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.executor.BufferedBatchStatementExecutor.prepareStatements(BufferedBatchStatementExecutor.java:39) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.JdbcOutputFormat.createAndOpenStatementExecutor(JdbcOutputFormat.java:121) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.internal.JdbcOutputFormat.open(JdbcOutputFormat.java:84) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.sink.JdbcSinkWriter.tryOpen(JdbcSinkWriter.java:68) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.connectors.seatunnel.jdbc.sink.JdbcSinkWriter.prepareCommit(JdbcSinkWriter.java:86) ~[connector-jdbc-2.3.1.jar:2.3.1] at org.apache.seatunnel.engine.server.task.flow.SinkFlowLifeCycle.received(SinkFlowLifeCycle.java:158) ~[seatunnel-starter.jar:2.3.1] ... 15 more 2023-04-17 11:24:47,551 INFO org.apache.seatunnel.engine.server.TaskExecutionService - [localhost]:5801 [seatunnel-794297] [5.1] taskDone, taskId = 50000, taskGroup = TaskGroupLocation{jobId=700184840061845505, pipelineId=1, taskGroupId=30000} 2023-04-17 11:24:47,551 WAR ``` ### Flink or Spark Version _No response_ ### Java or Scala Version _No response_ ### Screenshots _No response_ ### Are you willing to submit PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- This is an automated message from the Apache Git Service. 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