I accidentally opened an issue at spring-kafka project: https://github.com/spring-projects/spring-kafka/issues/1421
In short, a kafka state store can be tracked whether it is population process is finished or not. Also kafka-streams is unreachable when a state store is closed. A KafkaStateStoreHealthIndicator can handle those changes and reflect as health.
Comment From: wilkinsona
Thanks for the suggestion. Reading around a bit, and in particular Confluent's documentation, I'm not sure that there will be a one-size-fits-all solution here.
The first thing the Confluent documentation discusses is the state of a KafkaStreams instance. This seems to be something of a general recommendations as there aren't many ifs in the description. Later on it covers monitoring state store restoration but, to my reading, this doesn't seem to be so broadly applicable.
Unless we can find something that works well for a large majority of applications using Kafka Streams, I am concerned that auto-configuring something will do more harm than good.
Comment From: spring-projects-issues
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