Hi Gwen, 1.We are not doing any changes on the broker side. This change is only on Kafka clients library. 2. RecordMetaData is created by client library while appending record to ProducerBatch where offset alone returned by broker. Here we are adding headers to RecordMetaData while creating FutureRecordMetaData to create context between record and its metadata. I have updated the snippet in KIP proposed changes in step 3. 3. As we mentioned in alternatives, client side we can link record and its metadata using callback, but Interceptors having same RecordMetadata will not have context on for which record this MetaData belongs to. To fill that Gap, we are proposing these changes. Please let us know if we are not clear.
Thanks Renuka M On Fri, Aug 23, 2019 at 7:08 PM Gwen Shapira <g...@confluent.io> wrote: > I am afraid I don't understand the proposal. The RecordMetadata is > information returned from the broker regarding the record. The > producer already has the record (including the headers), so why would > the broker need to send the headers back as part of the metadata? > > On Fri, Aug 23, 2019 at 4:22 PM Renuka M <renumetuk...@gmail.com> wrote: > > > > Hi All, > > > > I am starting this thread to discuss > > > https://cwiki.apache.org/confluence/display/KAFKA/KIP-512%3AAdding+headers+to+RecordMetaData > > . > > > > Please provide the feedback. > > > > Thanks > > Renuka M > > > > -- > Gwen Shapira > Product Manager | Confluent > 650.450.2760 | @gwenshap > Follow us: Twitter | blog >
