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From Ted Yu <yuzhih...@gmail.com>
Subject Re: [DISCUSS] KIP-232: Detect outdated metadata by adding ControllerMetadataEpoch field
Date Sat, 02 Dec 2017 23:05:15 GMT
bq. It the controller_epoch of the incoming MetadataResponse, or if the
controller_epoch is the same but the controller_metadata_epoch

Can you update the above sentence so that the intention is clearer ?

Thanks

On Fri, Dec 1, 2017 at 6:33 PM, Dong Lin <lindong28@gmail.com> wrote:

> Hi all,
>
> I have created KIP-232: Detect outdated metadata by adding
> ControllerMetadataEpoch field:
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-
> 232%3A+Detect+outdated+metadata+by+adding+ControllerMetadataEpoch+field
> .
>
> The KIP proposes to add fields in MetadataResponse and
> UpdateMetadataRequest so that client can reject outdated metadata and avoid
> unnecessary OffsetOutOfRangeException. Otherwise there is currently race
> condition that can cause consumer to reset offset which negatively affect
> the consumer's availability.
>
> Feedback and suggestions are welcome!
>
> Regards,
> Dong
>

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