Hey Jason,

Thanks for your comments. Please find answers inline:

On Mon, May 21, 2018 at 9:52 AM, Jason Gustafson <ja...@confluent.io> wrote:

> Hi Arjun,
>
> Thanks for the KIP. Just a few comments/questions:
>
> 1. The proposal allows users to configure the number of retries. I usually
> find it easier as a user to work with timeouts since it's difficult to know
> how long a retry might take. Have you considered adding a timeout option
> which would retry until the timeout expires?
>

Good point. Updated the KIP.

2. The configs are named very generically (e.g. errors.retries.limit). Do
> you think it will be clear to users what operations these configs apply to?
>

As of now, these configs are applicable to all operations in the connector
pipeline (as mentioned in the proposed changes section). We decided not to
have per operation limit because of the additional config complexity.


> 3. I wasn't entirely clear what messages are stored in the dead letter
> queue. It sounds like it includes both configs and messages since we have
> errors.dlq.include.configs? Is there a specific schema you have in mind?
>

This has been addressed in the KIP. The DLQ will now contain only raw
messages (no additional context). We are also supporting DLQs only for sink
connectors now.


> 4. I didn't see it mentioned explicitly in the KIP, but I assume the
> tolerance metrics are reset after every task rebalance?
>

Great question. Yes, we will reset the tolerance metrics on every
rebalance.


> 5. I wonder if we can do without errors.tolerance.limit. You can get a
> similar effect using errors.tolerance.rate.limit if you allow longer
> durations. I'm not sure how useful an absolute counter is in practice.
>

Yeah, the rate limit does subsume the features offered by the absolute
counter. Removed it.


>
> Thanks,
> Jason
>
>

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