Hey Druids, Realtime nodes (the original Druid streaming ingestion mechanism, predating both realtime tasks and the Kafka/Kinesis indexing services) have been deprecated for years. Recently, Clint opened a PR to remove them: https://github.com/apache/incubator-druid/pull/7915
I think this is a great idea, as they are pretty well obsolete at this point. I would also suggest removing firehoses that are only really useful in realtime nodes. (Even though firehoses are still a relevant concept, since batch index tasks use them, any 'unbounded' firehoses aren't really useful for batch index tasks.) This includes: - IrcFirehoseFactory - KafkaEightFirehoseFactory - RabbitMQFirehoseFactory - RocketMQFirehoseFactory - TwitterSpritzerFirehoseFactory - The FirehoseFactoryV2 and FirehoseV2 interfaces, which are only used by Realtime nodes, and all implementations of them I'm writing this on the dev list, in addition to the PR, for some additional visibility since this is a relatively large deletion of code (it would remove at least 3 entire extensions).
