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https://issues.apache.org/jira/browse/FLINK-36223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zjf updated FLINK-36223:
------------------------
Fix Version/s: cdc-3.1.1
> SplitFetcher thread 0 received unexpected exception while polling the records
> -----------------------------------------------------------------------------
>
> Key: FLINK-36223
> URL: https://issues.apache.org/jira/browse/FLINK-36223
> Project: Flink
> Issue Type: Bug
> Components: Flink CDC
> Affects Versions: cdc-3.1.1
> Environment: # JDK 1.8
> # SQL SERVER 2019
> # FLINK CDC 3X
> Reporter: zjf
> Priority: Major
> Fix For: cdc-3.1.1
>
> Attachments: image-2024-09-05-14-17-56-066.png,
> image-2024-09-05-14-23-48-144.png, image-2024-09-05-14-35-58-759.png,
> image-2024-09-05-14-36-12-672.png, image-2024-09-05-14-37-46-581.png,
> image-2024-09-05-14-38-30-542.png, image-2024-09-05-14-38-49-424.png,
> image-2024-09-05-14-39-07-070.png
>
>
> 1.SQL Server dynamic table error occurred，The triggering condition is that
> after I save the checkpoint, I add a new table to my Flink CDC, and then the
> exception occurs when using the checkpoint to restore the CDC task
> 2.The error log information is as follows
> 024-09-04 18:08:56,577 INFO tracer[] [debezium-reader-0]
> i.d.c.s.SqlServerStreamingChangeEventSource:? - CDC is enabled for table
> Capture instance "T_BD_SUPPLIER_L"
> [sourceTableId=AIS20231222100348.dbo.T_BD_SUPPLIER_L,
> changeTableId=AIS20231222100348.cdc.T_BD_SUPPLIER_L_CT,
> startLsn=000abdbd:0000192b:0001, changeTableObjectId=627568271, stopLsn=NULL]
> but the table is not whitelisted by connector
> 2024-09-04 18:08:56,947 ERROR tracer[] [Source Data Fetcher for Source:
> kingdee-cdc-supply_test-source (1/1)#0|#0]
> o.a.f.c.b.s.r.f.SplitFetcherManager:? - Received uncaught exception.
> java.lang.RuntimeException: SplitFetcher thread 0 received unexpected
> exception while polling the records
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.runOnce(SplitFetcher.java:168)
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.run(SplitFetcher.java:117)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
> at java.util.concurrent.FutureTask.run(FutureTask.java)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:750)
> Caused by:
> com.ververica.cdc.connectors.shaded.org.apache.kafka.connect.errors.ConnectException:
> An exception occurred in the change event producer. This connector will be
> stopped.
> at
> io.debezium.pipeline.ErrorHandler.setProducerThrowable(ErrorHandler.java:50)
> at
> io.debezium.connector.sqlserver.SqlServerStreamingChangeEventSource.executeIteration(SqlServerStreamingChangeEventSource.java:459)
> at
> io.debezium.connector.sqlserver.SqlServerStreamingChangeEventSource.execute(SqlServerStreamingChangeEventSource.java:138)
> at
> com.ververica.cdc.connectors.sqlserver.source.reader.fetch.SqlServerStreamFetchTask$StreamSplitReadTask.execute(SqlServerStreamFetchTask.java:161)
> at
> com.ververica.cdc.connectors.sqlserver.source.reader.fetch.SqlServerStreamFetchTask.execute(SqlServerStreamFetchTask.java:69)
> at
> com.ververica.cdc.connectors.base.source.reader.external.IncrementalSourceStreamFetcher.lambda$submitTask$0(IncrementalSourceStreamFetcher.java:89)
> ... 6 common frames omitted
> Caused by:
> com.ververica.cdc.connectors.shaded.org.apache.kafka.connect.errors.DataException:
> file is not a valid field name
> at
> com.ververica.cdc.connectors.shaded.org.apache.kafka.connect.data.Struct.lookupField(Struct.java:254)
> at
> com.ververica.cdc.connectors.shaded.org.apache.kafka.connect.data.Struct.getCheckType(Struct.java:261)
> at
> com.ververica.cdc.connectors.shaded.org.apache.kafka.connect.data.Struct.getString(Struct.java:158)
> at
> com.ververica.cdc.connectors.base.relational.JdbcSourceEventDispatcher$SchemaChangeEventReceiver.schemaChangeRecordValue(JdbcSourceEventDispatcher.java:193)
> at
> com.ververica.cdc.connectors.base.relational.JdbcSourceEventDispatcher$SchemaChangeEventReceiver.schemaChangeEvent(JdbcSourceEventDispatcher.java:223)
> at
> io.debezium.connector.sqlserver.SqlServerSchemaChangeEventEmitter.emitSchemaChangeEvent(SqlServerSchemaChangeEventEmitter.java:47)
> at
> com.ververica.cdc.connectors.base.relational.JdbcSourceEventDispatcher.dispatchSchemaChangeEvent(JdbcSourceEventDispatcher.java:147)
> at
> com.ververica.cdc.connectors.base.relational.JdbcSourceEventDispatcher.dispatchSchemaChangeEvent(JdbcSourceEventDispatcher.java:62)
> at
> io.debezium.connector.sqlserver.SqlServerStreamingChangeEventSource.getChangeTablesToQuery(SqlServerStreamingChangeEventSource.java:581)
> at
> io.debezium.connector.sqlserver.SqlServerStreamingChangeEventSource.executeIteration(SqlServerStreamingChangeEventSource.java:237)
> ... 10 common frames omitted
> 3.The Maven configuration file I introduced is as follows
> <properties>
> <flink.version>1.19.1</flink.version>
> <sql-connector.version>3.0.1</sql-connector.version>
> </properties>
> <dependency>
> <groupId>org.apache.flink</groupId>
> <artifactId>flink-connector-base</artifactId>
> <version>${flink.version}</version>
> <!-- <scope>compile</scope>-->
> </dependency>
> <dependency>
> <groupId>com.ververica</groupId>
> <artifactId>flink-cdc-base</artifactId>
> <version>${flink.version}</version>
> </dependency>
> <dependency>
> <groupId>com.ververica</groupId>
> <artifactId>flink-sql-connector-mysql-cdc</artifactId>
> <version>${sql-connector.version}</version>
> <scope>compile</scope>
> </dependency>
> <dependency>
> <groupId>com.ververica</groupId>
> <artifactId>flink-sql-connector-sqlserver-cdc</artifactId>
> <version>${sql-connector.version}</version>
> </dependency>
> <dependency>
> <groupId>org.apache.flink</groupId>
> <artifactId>flink-streaming-java</artifactId>
> <version>${flink.version}</version>
> </dependency>
> <dependency>
> <groupId>org.apache.flink</groupId>
> <artifactId>flink-clients</artifactId>
> <version>${flink.version}</version>
> </dependency>
> <dependency>
> <groupId>org.apache.flink</groupId>
> <artifactId>flink-runtime-web</artifactId>
> <version>${flink.version}</version>
> </dependency>
> <dependency>
> <groupId>org.apache.flink</groupId>
> <artifactId>flink-table-runtime</artifactId>
> <version>${flink.version}</version>
> </dependency>
> <dependency>
> <groupId>org.apache.flink</groupId>
> <artifactId>flink-connector-kafka</artifactId>
> <version>3.1.0-1.18</version>
> </dependency>
> <dependency>
> <groupId>org.apache.flink</groupId>
> <artifactId>flink-connector-pulsar</artifactId>
> <version>4.1.0-1.18</version>
> </dependency>
> The reason is that the Flink CDC reads the serialized checkpoint file, which
> only contains one table A in the file. However, when I add table B and the
> data in table B changes, this exception occurs. The reason is that this table
> is not included in the historical checkpoint serialization. Below is the
> image evidence of my debugging
> After I added a new table, I couldn't find it here
> !image-2024-09-05-14-17-56-066.png!
> this.schema.tableFor(currentTable.getSourceTableId()) == null
> I guess the judgment here is that when the checkpoint serialization content
> cannot be found, the newly added table needs to be initialized and added to
> the cache
> !image-2024-09-05-14-23-48-144.png!
> But I don't understand this paragraph anymore. Struct's schema local variable
> doesn't contain the file attribute, so why bother reading it? Could it be
> that there is a problem with the package version I introduced? This issue has
> also occurred in Flink sql connector mysql cdc before, but it can be solved
> by setting. scanNewlyAddedTableEnabled (true) in MySqlSourceBuilder. However,
> I did not find it in the methods of the sqlServerSourceBuilder in Flink sql
> connector sqlserver cdc
> !image-2024-09-05-14-37-46-581.png!
> This code should be reading the file attribute
> !image-2024-09-05-14-38-30-542.png!
> Because I couldn't find it and threw an exception here, the specific
> manifestation is that I kept looping errors
> !image-2024-09-05-14-38-49-424.png!
> !image-2024-09-05-14-39-07-070.png!
> If this problem is not resolved, I will not be able to read the last
> checkpoint or savepoint and will have to delete it. If there are any data
> modifications in the database at this time, I will not be able to capture them
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