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No new metrics will be added for the error reporter. Instead, the metrics detailed in KIP-298 for the dead letter queue will be used for the error reporter.

Errors Tolerance

The Errant Record Reporter will adhere to the existing DLQ error tolerance functionality. For example, if `errors.tolerance` is set to `ALL`, all errors will be tolerated; if the property is set to `NONE`, then the Errant Record Reporter will throw an exception detailing that the tolerance has been exceeded. Even if the developer chooses to catch and swallow any of these exceptions thrown during `report(...)`, the task is guaranteed to be killed following the completion of `put(...)`.

FileSinkTask Example

This KIP will update the FileSinkTask example to use the new API, to demonstrate proper error handling with the ability to use it on older versions of Kafka Connect.

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