Stateful Functions includes a small number of SDK specific configurations. These may be set through your job’s flink-conf.yaml.

Key Default Type Description<KEY>
(none) String Adds the given key/value pair to the Stateful Functions global configuration.
WITH_PROTOBUF_PAYLOADS Message Serializer The serializer to use for on the wire messages. Options are WITH_PROTOBUF_PAYLOADS, WITH_KRYO_PAYLOADS, WITH_RAW_PAYLOADS, WITH_CUSTOM_PAYLOADS.
(none) String The custom payload serializer class to use with the WITH_CUSTOM_PAYLOADS serializer, which must implement MessagePayloadSerializer.
StatefulFunctions String The name to display in the Flink-UI.
32 MB Memory TThe number of bytes to use for in memory buffering of the feedback channel, before spilling to disk.