Hey, could you tell me what this error is related to? : 2024-10-29 082442 source > WARN pool-3-thread-1 i.d.p.ChangeEventSourceCoordinator(stop):320 Coordinator didn't stop in the expected time, shutting down executor now 943 2024-10-29 082453 source > ERROR debezium-sqlserverconnector-BDDWH_PRD_LZ_MER-change-event-source-coordinator i.d.p.ErrorHandler(setProducerThrowable):52 Producer failure org.apache.kafka.connect.errors.ConnectException: Error while processing event at offset {event_serial_no=2, commit_lsn=000018bf000162480014, change_lsn=000018bf000161d000e0}

This error appears to be related to Airbyte's source connector using Debezium for change data capture (CDC) from a SQL Server database. Let me break down the error message for you: 1. The first part of the error indicates that the Debezium coordinator didn't stop within the expected time:

2024-10-29 08:24:42 source > WARN pool-3-thread-1 i.d.p.ChangeEventSourceCoordinator(stop):320 Coordinator didn't stop in the expected time, shutting down executor now

This suggests that there might be an issue with gracefully stopping the Debezium process. 2. The second part of the error is more specific:

2024-10-29 08:24:53 source > ERROR debezium-sqlserverconnector-BDDWH_PRD_LZ_MER-change-event-source-coordinator i.d.p.ErrorHandler(setProducerThrowable):52 Producer failure org.apache.kafka.connect.errors.ConnectException: Error while processing event at offset {event_serial_no=2, commit_lsn=000018bf:00016248:0014, change_lsn=000018bf:000161d0:00e0}

This error indicates that there was a problem processing a specific event in the SQL Server transaction log. The error occurs at a particular offset, identified by the event serial number and LSN (Log Sequence Number) values. This type of error can occur due to various reasons, such as: 1. Network issues between the Airbyte source and the SQL Server database. 2. Permissions problems with the database user. 3. Incompatibility between the Debezium connector version and the SQL Server version. 4. Corrupted or inconsistent data in the transaction log. To troubleshoot this issue, you might want to: 1. Check the network connectivity between Airbyte and your SQL Server database. 2. Verify that the database user has the necessary permissions for CDC operations. 3. Ensure that you're using a compatible version of the Airbyte SQL Server source connector. 4. Review the full logs for any additional context or error messages. If the problem persists, you may need to reach out to Airbyte support or consult the Airbyte community forums for more specific assistance, as the error might require more detailed investigation based on your specific setup and configuration.

Thanks, and what about this one? 2024-10-29 084418 source > INFO debezium-sqlserverconnector-BDDWH_PRD_LZ_MER-change-event-source-coordinator i.d.c.s.SqlServerStreamingChangeEventSource(lambda$executeIteration$0):282 Skipping change ChangeTableResultSet{changeTable=Capture instance "dbo_UserSheetExtraInfos_V2" [sourceTableId=BDDWH_PRD_LZ_MER.dbo.UserSheetExtraInfos_V2, changeTableId=BDDWH_PRD_LZ_MER.cdc.dbo_UserSheetExtraInfos_V2_CT, startLsn=000017d000007718007a, changeTableObjectId=1212583408, stopLsn=NULL], resultSet=SQLServerResultSet:47, completed=false, currentChangePosition=000018bd0003b1d800f8(000018bd0003b1d800e3)} as its position is smaller than the last recorded position 000018bd0003b1d800f8(000018bd0003b1d800e6

This log message is related to the CDC (Change Data Capture) functionality in the Airbyte MSSQL source connector. The message indicates that the connector is skipping a change event because its position is smaller than the last recorded position. This behavior is expected and part of the normal operation of the CDC process. According to the [changelog for the MSSQL source connector](https://docs.airbyte.com/integrations/sources/mssql#changelog), recent versions have made improvements to CDC functionality and logging. For example, version 4.1.12 removed excessive Debezium logging, which might be related to the type of message you're seeing. It's important to note that this is an informational message (INFO level) and not an error. The connector is working as designed by skipping changes that have already been processed or are out of the current processing window. If you're experiencing any issues with your MSSQL CDC sync, it would be helpful to: 1. Ensure you're using the latest version of the MSSQL source connector. 2. Check for any actual error messages in the logs. 3. Verify that your CDC configuration in SQL Server is correct and that the retention period is sufficient for your sync frequency. If you're still encountering problems or have concerns about data consistency, you may want to consider: 1. Increasing the log level for more detailed information. 2. Checking the Airbyte documentation for any known issues or best practices for MSSQL CDC. 3. Reaching out to Airbyte support with more detailed logs and your specific configuration if you suspect there's an actual problem.

@kapa.ai Many thanks, and what about this one? at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?] 853 at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?] 854 at java.base/java.lang.Thread.run(Thread.java:1583) [?:?] 855 Caused by: java.lang.InterruptedException 856 at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1854) ~[?:?] 857 at io.debezium.connector.base.ChangeEventQueue.doEnqueue(ChangeEventQueue.java:224) ~[debezium-core-2.7.1.Final.jar:2.7.1.Final] 858 at io.debezium.connector.base.ChangeEventQueue.enqueue(ChangeEventQueue.java:180) ~[debezium-core-2.7.1.Final.jar:2.7.1.Final] 859 at io.debezium.pipeline.EventDispatcher$StreamingChangeRecordReceiver.changeRecord(EventDispatcher.java:517) ~[debezium-core-2.7.1.Final.jar:2.7.1.Final] 860 at io.debezium.pipeline.EventDispatcher$2.changeRecord(EventDispatcher.java:304) ~[debezium-core-2.7.1.Final.jar:2.7.1.Final] 861 at io.debezium.relational.RelationalChangeRecordEmitter.emitUpdateRecord(RelationalChangeRecordEmitter.java:124) ~[debezium-core-2.7.1.Final.jar:2.7.1.Final] 862 at io.debezium.relational.RelationalChangeRecordEmitter.emitChangeRecords(RelationalChangeRecordEmitter.java:53) ~[debezium-core-2.7.1.Final.jar:2.7.1.Final] 863 at io.debezium.pipeline.EventDispatcher.dispatchDataChangeEvent(EventDispatcher.java:275) ~[debezium-core-2.7.1.Final.jar:2.7.1.Final] 864 ... 12 more 865 866 Stack Trace: org.apache.kafka.connect.errors.ConnectException: Error while processing event at offset {event_serial_no=2, commit_lsn=000018bf000162480014, change_lsn=000018bf000161d000e0} 867 at io.debezium.pipeline.EventDispatcher.dispatchDataChangeEvent(EventDispatcher.java:327) 868 at io.debezium.connector.sqlserver.SqlServerStreamingChangeEventSource.lambda$executeIteration$0(SqlServerStreamingChangeEventSource.java:334) 869 at io.debezium.jdbc.JdbcConnection.prepareQuery(JdbcConnection.java:612) 870 at io.debezium.connector.sqlserver.SqlServerConnection.getChangesForTables(SqlServerConnection.java:386) 871 at io.debezium.connector.sqlserver.SqlServerStreamingChangeEventSource.executeIteration(SqlServerStreamingChangeEventSource.java:235) 872 at io.debezium.connector.sqlserver.SqlServerStreamingChangeEventSource.executeIteration(SqlServerStreamingChangeEventSource.java:67) 873 at io.debezium.connector.sqlserver.SqlServerChangeEventSourceCoordinator.executeChangeEventSources(SqlServerChangeEventSourceCoordinator.java:117) 874 at io.debezium.pipeline.ChangeEventSourceCoordinator.lambda$start$0(ChangeEventSourceCoordinator.java:143) 875 at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) 876 at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317) 877 at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) 878 at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) 879 at java.base/java.lang.Thread.run(Thread.java:1583) 880 Caused by: java.lang.InterruptedException 881 at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1854) 882 at io.debezium.connector.base.ChangeEventQueue.doEnqueue(ChangeEventQueue.java:224) 883 at io.debezium.connector.base.ChangeEventQueue.enqueue(ChangeEventQueue.java:180) 884 at io.debezium.pipeline.EventDispatcher$StreamingChangeRecordReceiver.changeRecord(EventDispatcher.java:517) 885 at io.debezium.pipeline.EventDispatcher$2.changeRecord(EventDispatcher.java:304) 886 at io.debezium.relational.RelationalChangeRecordEmitter.emitUpdateRecord(RelationalChangeRecordEmitter.java:124) 887 at io.debezium.relational.RelationalChangeRecordEmitter.emitChangeRecords(RelationalChangeRecordEmitter.java:53) 888 at io.debezium.pipeline.EventDispatcher.dispatchDataChangeEvent(EventDispatcher.java:275) 889 ... 12 more

A message from kapa.ai

This error message is related to the CDC (Change Data Capture) functionality in the Airbyte MSSQL source connector. The error indicates that there was an interruption while processing a change event. Let's break down the key parts of this error: 1. The main exception is

org.apache.kafka.connect.errors.ConnectException: Error while processing event at offset

. 2. The root cause appears to be a

java.lang.InterruptedException

, which suggests that the thread processing the change event was interrupted. 3. This is occurring in the Debezium component, which Airbyte uses for CDC functionality. This type of error can occur due to various reasons, such as: 1. The CDC process being forcibly stopped or interrupted. 2. Network issues causing interruptions in the connection to the SQL Server. 3. Resource constraints leading to thread interruptions. To address this issue, you could try the following: 1. Ensure you're using the latest version of the MSSQL source connector. Recent versions have made improvements to CDC functionality and error handling. For example, [version 2.0.34](https://docs.airbyte.com/integrations/sources/mssql#changelog) included updates to the MSSQL driver and Debezium version. 2. Check your network connection stability between Airbyte and your SQL Server. 3. Review your SQL Server's CDC configuration, ensuring that the retention period is sufficient and that there are no issues with the CDC process on the SQL Server side. 4. If the issue persists, you might want to try increasing the CDC polling interval to reduce the frequency of change event processing. 5. Consider reviewing your Airbyte instance's resource allocation, as resource constraints could lead to thread interruptions. If you continue to experience this issue after trying these steps, it would be advisable to: 1. Collect more detailed logs by increasing the log level. 2. Open an issue on the [Airbyte GitHub repository](https://github.com/airbytehq/airbyte) with the full logs and your configuration details (make sure to redact any sensitive information). Remember, while this error is concerning, it's related to a specific change event. Depending on your sync frequency and data criticality, you might be able to resolve this by running a new sync, which would pick up from the last successful position.

@kapa.ai when you say : If the issue persists, you might want to try increasing the CDC polling interval to reduce the frequency of change event processing. --> Is this something I can do in Airbyte UI? If yes, how and where ? Thanks

A message from kapa.ai

Thank you for your follow-up question. I apologize for any confusion in my previous response. After carefully reviewing the available knowledge sources, I don't have specific information about adjusting the CDC polling interval directly in the Airbyte UI for the MSSQL source connector. The Airbyte UI does offer some configuration options for connections, but the CDC polling interval is not explicitly mentioned as one of them. According to the [Airbyte documentation on configuring connections](https://docs.airbyte.com/cloud/managing-airbyte-cloud/configuring-connections), the main settings you can adjust in the UI are related to sync frequency, namespaces, and schema change behavior. If you're experiencing issues with CDC syncs, you might want to consider these alternative approaches: 1. Adjust the sync frequency: You can modify how often the sync runs by changing the [Schedule Type](https://docs.airbyte.com/cloud/managing-airbyte-cloud/configuring-connections) in the connection settings. This might indirectly affect the CDC behavior. 2. Check CDC-specific settings: Review any CDC-specific configuration options available for the MSSQL source when setting up the connection. These might include options related to snapshot mode or replication method. 3. Contact Airbyte support: If you need to adjust low-level settings like the CDC polling interval, you may need to reach out to Airbyte support or consult their more advanced documentation. 4. Consider the initial CDC waiting time: For some sources like Postgres, there's an [advanced setting for initial CDC waiting time](https://docs.airbyte.com/integrations/sources/postgres/postgres-troubleshooting#advanced-setting-up-initial-cdc-waiting-time). While this is not specifically for MSSQL, it shows that some CDC-related settings might be available but not easily accessible through the UI. If you continue to experience issues with CDC syncs, I recommend opening a discussion on the [Airbyte GitHub repository](https://github.com/airbytehq/airbyte) or reaching out to Airbyte support for more specific guidance on optimizing CDC performance for your MSSQL source.