The count is stored in RocksDB which is persisted to disk. It is not in-memory unless you specifically use an InMemoryStore.
On Wed, 1 Aug 2018 at 12:53 Kyle.Hu <creator...@163.com> wrote: > Hi, bosses: > I have read the word count demo of Kafka Stream API, it is cool that > the Kafka Stream keeps the status, and I have a question about it, Weather > it would cause memory problems when the keys accumulate a lot ?
