Understanding generic error messages in Airbyte sync logs

I am using Airbyte & very frequently i see the following errors. Can you please let me know what each error message indicates and what are the expected reasons for each of these errors.
-Sync worker failed
-JSON schema validation failed
-Normalization Failed

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Hey @MahakUrooj,

Thanks for making this post. Apologies for significant delays in responding to all of your posts, we’re definitely working on improving response time.

  • Sync worker failed: This is a fairly generic error message that could be the result of many things. Workers can fail for any number of reasons, out of memory, or something wrong happening with the fetching of data or a regression in the underlying API for the connector, etc. You can only really understand this error in the context of the full sync logs.

  • JSON schema validation failed - This is usually a warning and not an error but the team is still investigating this further. More info here: https://github.com/airbytehq/airbyte/issues/12616

  • Normalization failed - This again can be due to many things. Worker processes not being able to access the destination models, or SQL errors or errors in data types for conversion, etc. This is also something that can only be determined in the context of the logs and even then it may be something platform related due to a dependency or something.

I hope these answers make sense and help you understand the importance of the logs and why you might be getting these errors. Eventually, when we have enough data points for errors, we should be able to telegraph causes more effectively to the developer. For now, this is what you can expect. Feel free to post additional questions here in the forums or create issues in our Github. Thanks!