LinG955 opened a new issue, #2091: URL: https://github.com/apache/incubator-seatunnel/issues/2091
### 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 One hour ago, I successfully read data from the MySQL database to the console, but now I fail to repeat the operation ### SeaTunnel Version 2.1.1 ### SeaTunnel Config ```conf env { # You can set spark configuration here # see available properties defined by spark: https://spark.apache.org/docs/latest/configuration.html#available-properties spark.app.name = "SeaTunnel" spark.executor.instances = 2 spark.executor.cores = 1 spark.executor.memory = "1g" spark.streaming.batchDuration = 5 } source { # This is a example input plugin **only for test and demonstrate the feature input plugin** jdbc { driver = "com.mysql.cj.jdbc.Driver" url = "jdbc:mysql://192.168.233.1:3306/test" table = "merchants" result_table_name = "merchants" user = "root" password = "XXXXX" } transform { } sink { # choose stdout output plugin to output data to console Console {} # If you would like to get more information about how to configure seatunnel and see full list of output plugins, # please go to https://seatunnel.apache.org/docs/spark/configuration/sink-plugins/Console } ``` ### Running Command ```shell ./bin/start-seatunnel-spark.sh --master local[4] --deploy-mode client --config ./config/mysql-console ``` ### Error Exception ```log 22/06/29 19:18:18 ERROR Seatunnel: =============================================================================== 22/06/29 19:18:18 ERROR Seatunnel: Fatal Error, 22/06/29 19:18:18 ERROR Seatunnel: Please submit bug report in https://github.com/apache/incubator-seatunnel/issues 22/06/29 19:18:18 ERROR Seatunnel: Reason:Execute Spark task error 22/06/29 19:18:18 ERROR Seatunnel: Exception StackTrace:java.lang.RuntimeException: Execute Spark task error at org.apache.seatunnel.command.spark.SparkTaskExecuteCommand.execute(SparkTaskExecuteCommand.java:61) at org.apache.seatunnel.command.spark.SparkTaskExecuteCommand.execute(SparkTaskExecuteCommand.java:36) at org.apache.seatunnel.Seatunnel.run(Seatunnel.java:48) at org.apache.seatunnel.SeatunnelSpark.main(SeatunnelSpark.java:27) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:775) at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180) at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205) at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:119) at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala) Caused by: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:833) at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:453) at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198) at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$$anonfun$createConnectionFactory$1.apply(JdbcUtils.scala:61) at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$$anonfun$createConnectionFactory$1.apply(JdbcUtils.scala:52) at org.apache.spark.sql.execution.datasources.jdbc.JDBCRDD$.resolveTable(JDBCRDD.scala:58) at org.apache.spark.sql.execution.datasources.jdbc.JDBCRelation.<init>(JDBCRelation.scala:114) at org.apache.spark.sql.execution.datasources.jdbc.JdbcRelationProvider.createRelation(JdbcRelationProvider.scala:52) at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:307) at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:178) at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:146) at org.apache.seatunnel.spark.jdbc.source.Jdbc.getData(Jdbc.scala:31) at org.apache.seatunnel.spark.jdbc.source.Jdbc.getData(Jdbc.scala:28) at org.apache.seatunnel.spark.SparkEnvironment.registerInputTempView(SparkEnvironment.java:126) at org.apache.seatunnel.spark.batch.SparkBatchExecution.lambda$start$0(SparkBatchExecution.java:45) at java.util.ArrayList.forEach(ArrayList.java:1259) at org.apache.seatunnel.spark.batch.SparkBatchExecution.start(SparkBatchExecution.java:45) at org.apache.seatunnel.command.spark.SparkTaskExecuteCommand.execute(SparkTaskExecuteCommand.java:58) ... 12 more Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151) at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167) at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89) at com.mysql.cj.NativeSession.connect(NativeSession.java:144) at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:953) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:823) ... 30 more Caused by: java.net.ConnectException: Connection timed out (Connection timed out) at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155) at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63) ... 33 more 22/06/29 19:18:18 ERROR Seatunnel: =============================================================================== Exception in thread "main" java.lang.RuntimeException: Execute Spark task error at org.apache.seatunnel.command.spark.SparkTaskExecuteCommand.execute(SparkTaskExecuteCommand.java:61) at org.apache.seatunnel.command.spark.SparkTaskExecuteCommand.execute(SparkTaskExecuteCommand.java:36) at org.apache.seatunnel.Seatunnel.run(Seatunnel.java:48) at org.apache.seatunnel.SeatunnelSpark.main(SeatunnelSpark.java:27) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:775) at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180) at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205) at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:119) at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala) Caused by: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:833) at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:453) at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198) at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$$anonfun$createConnectionFactory$1.apply(JdbcUtils.scala:61) at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$$anonfun$createConnectionFactory$1.apply(JdbcUtils.scala:52) at org.apache.spark.sql.execution.datasources.jdbc.JDBCRDD$.resolveTable(JDBCRDD.scala:58) at org.apache.spark.sql.execution.datasources.jdbc.JDBCRelation.<init>(JDBCRelation.scala:114) at org.apache.spark.sql.execution.datasources.jdbc.JdbcRelationProvider.createRelation(JdbcRelationProvider.scala:52) at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:307) at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:178) at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:146) at org.apache.seatunnel.spark.jdbc.source.Jdbc.getData(Jdbc.scala:31) at org.apache.seatunnel.spark.jdbc.source.Jdbc.getData(Jdbc.scala:28) at org.apache.seatunnel.spark.SparkEnvironment.registerInputTempView(SparkEnvironment.java:126) at org.apache.seatunnel.spark.batch.SparkBatchExecution.lambda$start$0(SparkBatchExecution.java:45) at java.util.ArrayList.forEach(ArrayList.java:1259) at org.apache.seatunnel.spark.batch.SparkBatchExecution.start(SparkBatchExecution.java:45) at org.apache.seatunnel.command.spark.SparkTaskExecuteCommand.execute(SparkTaskExecuteCommand.java:58) ... 12 more Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151) at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167) at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89) at com.mysql.cj.NativeSession.connect(NativeSession.java:144) at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:953) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:823) ... 30 more Caused by: java.net.ConnectException: Connection timed out (Connection timed out) at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:607) at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155) at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63) ... 33 more 22/06/29 19:18:19 INFO SparkContext: Invoking stop() from shutdown hook 22/06/29 19:18:21 INFO SparkUI: Stopped Spark web UI at http://192.168.233.10:4040 22/06/29 19:18:22 INFO MapOutputTrackerMasterEndpoint: MapOutputTrackerMasterEndpoint stopped! 22/06/29 19:18:22 INFO MemoryStore: MemoryStore cleared 22/06/29 19:18:22 INFO BlockManager: BlockManager stopped 22/06/29 19:18:22 INFO BlockManagerMaster: BlockManagerMaster stopped 22/06/29 19:18:22 INFO OutputCommitCoordinator$OutputCommitCoordinatorEndpoint: OutputCommitCoordinator stopped! 22/06/29 19:18:22 INFO SparkContext: Successfully stopped SparkContext 22/06/29 19:18:22 INFO ShutdownHookManager: Shutdown hook called 22/06/29 19:18:22 INFO ShutdownHookManager: Deleting directory /tmp/spark-f91ddf50-35e4-4144-b692-9ab1e5330945 ``` ### Flink or Spark Version Spark 2.2.1 ### Java or Scala Version OpenJDK 1.8 ### 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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