Hi All, I am wondering if Flink can do streaming from data sources other than Kafka. For example can Flink do streaming from a database like Cassandra, HBase, MongoDb to sinks like says Elastic search or Kafka.
Also for out of core stateful streaming. Is RocksDB the only option? Can I use some other key value store that has SQL interface (since RocksDB doesn't)? Thanks, kant
