< kapa ai> I get the following error message ```Saved offset Airbyte #ask-ai

<@U04S8PLJWMT> I get the following error message `...

Viddu Devigere

02/10/2025, 3:24 PM

@kapa.ai I get the following error message

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Saved offset no longer present on the server. Please reset the connection, and then increase binlog retention and/or increase sync frequency.

What does reset the connection mean? How can I do that

kapa.ai

02/10/2025, 3:25 PM

This error message is related to Airbyte's CDC (Change Data Capture) functionality when syncing data from a database source. Based on the information provided in the knowledge sources, I can explain what "reset the connection" means and how you can do it. "Reset the connection" in this context means resetting the sync state of your Airbyte connection. This is necessary because the saved offset (the point from which Airbyte was reading changes) is no longer available on the source database server, likely due to the retention period of the change logs being exceeded. To reset the connection, you need to: 1. Go to your Airbyte dashboard 2. Find the connection that's experiencing this error 3. Click on the "Reset" button for that connection 4. Choose the option to reset the data and perform a full refresh This process will trigger a full refresh of the data, essentially starting the sync from scratch. It's important to note that this will re-sync all of your data, which could be time-consuming depending on the size of your dataset. After resetting the connection, you should also consider: 1. Increasing the binlog retention period on your database server to prevent this issue in the future. 2. Increasing the sync frequency in Airbyte so that it syncs data more often, reducing the chance of the offset becoming invalid. For more detailed information on troubleshooting this issue, you can refer to the following resources: [Github Issue: source-mssql Airbyte triggering full refresh after retention period](https://github.com/airbytehq/airbyte/issues/42435) [Github Issue: source-MongoDB incremental sync giving errors](https://github.com/airbytehq/airbyte/issues/36994) These issues discuss similar problems and provide additional context on why this error occurs and how to address it.

Viddu Devigere

02/10/2025, 3:26 PM

@kapa.ai I am using Airbyte OSS I do not see a reset button for the connection, where can i find it

kapa.ai

02/10/2025, 3:26 PM

A message from kapa.ai

kapa.ai

02/10/2025, 3:26 PM

I apologize for the confusion in my previous answer. You're right that the reset button is not available in Airbyte OSS (Open Source). Let me provide you with the correct information for Airbyte OSS. In Airbyte OSS, the process to reset a connection is different from what I previously described. Instead of a reset button, you'll need to use the "Clear data" functionality. Here's how you can do it: 1. In the Airbyte UI, click on "Connections" in the main navbar. 2. Select the connection you want to reset. 3. Go to the "Settings" tab of the connection. 4. Look for the "Clear data" button. 5. Click on "Clear data" and confirm your selection. This process will remove all previously synced data from the destination for that connection. After clearing the data, you should initiate a new sync to reload the data. For more detailed information on this process, you can refer to the [Clearing your data](https://docs.airbyte.com/operator-guides/clear) documentation. It's important to note that clearing data is irreversible, so make sure you want to erase all the data that Airbyte has created in your destination before proceeding. After clearing the data and running a new sync, you should also consider increasing the binlog retention period on your database server and increasing the sync frequency in Airbyte to prevent the original issue from recurring.

Viddu Devigere

02/10/2025, 5:09 PM

@kapa.ai what are the recommended binlog configurations for MySQL replication when using RDS

kapa.ai

02/10/2025, 5:09 PM

A message from kapa.ai

kapa.ai

02/10/2025, 5:09 PM

Based on the knowledge sources provided, I can offer recommendations for binlog configurations when using MySQL replication with RDS for Airbyte. Here are the key configurations: 1. Binlog format: Set

binlog_format = ROW

. This is crucial for Airbyte's CDC functionality. 2. Binlog row image: Configure

binlog_row_image = FULL

. This ensures that the full row image is captured in the binlog. 3. Binlog expiration: Set

binlog_expire_logs_seconds = 864000

(10 days). This setting determines how long the binlog files are retained. The recommendation is to keep them for at least 10 days to allow for potential sync interruptions or pauses. 4. Server ID: Ensure a unique

server-id

is set for each server and replication client in the MySQL cluster. Here's an example of how these configurations might look in your MySQL server configuration file:

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server-id                  = 223344 log_bin                    = mysql-bin binlog_format              = ROW binlog_row_image           = FULL binlog_expire_logs_seconds = 864000

It's important to note that most cloud providers, including AWS RDS, often provide easy one-click options for enabling binlog on your source MySQL database. Additionally, for RDS specifically: - If you encounter connection issues, you may need to add

enabledTLSProtocols=TLSv1.2

in the JDBC parameters. - If you see connection timeout errors, it might be due to your VPC not allowing public traffic. In this case, review the [AWS troubleshooting checklist](https://aws.amazon.com/premiumsupport/knowledge-center/rds-cannot-connect/) to ensure the correct permissions and settings are in place. For more detailed information, you can refer to the [MySQL Troubleshooting documentation](https://docs.airbyte.com/integrations/sources/mysql/mysql-troubleshooting#troubleshooting). Remember to adjust these settings according to your specific needs and constraints, and always test changes in a non-production environment first.

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