I have the following use case:
I have two Kafka topics, one is meant to be used a stream of incoming messages to be processed, the other is meant as store of records that is meant to be used as a bootstrap to the initial state of the application.
Is there a way to do the following:
ConsumerRecord
in memory from the topic that is meant to bootstrap the application to its initial stateConsumerRecord
from the stream topic to be processedThanks!
Start your bootstrap consumer first.
Read the other topic till a particular offset is reached or (if you want the end, you can read as long as there is no polled records available [this is not the best way!]). If you want to start at particular offset every-time you have to use a seek. Also use a unique consumer group id for this since you want to all the records. You might want to handle the rebalance case appropriately.
Then close that consumer and start the other stream consumer and process the data. Using Ktables with Kafka streams might be better, but I am not familiar with it.
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