a2l007 commented on issue #12506:
URL: https://github.com/apache/druid/issues/12506#issuecomment-1128383598

   Thanks for taking a look at this! 
   
   > There's a feature offered by Confluent to make Kafka store/reload old data 
in S3, but AFAIK this is not part of vanilla Kafka.
   > 
   > Your idea does have merit, but don't you think that the job of long-term 
storage and retrieval of raw data is best done by Kafka?
   
   I assume you were referring to Kafka connect here, which is indeed a popular 
tool for streaming data into other data systems. The main motivations to go 
with a core journaling approach in Druid are:
   - Many of the useful Kafka connect sinks such as the S3 sink has a 
commercial license associated with it, which maybe a deterrent for users.
   - Users may not have an option to use Kafka connect sinks or other export 
tools if they aren't supported by the managed Kafka services they rely on.
   
   


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