Is the stream data internally maintained in database/meta data in OSA? What are the limitations of O

User_W6B5R

Is the stream data is maintained anywhere in database?

As some of the analysis patterns uses history data for trend detection etc, how the history data is maintained? is there any limitation in OSA in case of large streams of events?

Alex Kotopoulis-Oracle

OSA itself does not maintain stream data beyond transient windowing, but it can send data to Kafka and other targets for storage.

Historical data can be used through references to enrich stream data. You can access reference data from databases or Coherence.

OSA can scale to very large volumes of events based on the clustered SparkStreaming and Oracle CQL engine environment.