Camunda Topic vs Kafka Topic

[StephanHaarmann]

Hi,

Thanks for the clarification.

• Yes, the connector SDK can be used in the self-managed Camunda 8 setup
• No, Camunda 8 does not use a relational database (neither in the self-managed nor in the SaaS offering). Its state is stored in RocksDB and fault tolerance is established via replication. The following thread might be interesting:

Does Zeebe store its state in RocksDB or any database?

Hi @sherry-ummen, Zeebe does not use a centralized, external or shared database. @deepthi gave a great talk about scaling workflow engines which discusses the problem of such databases in the first 2 minutes and then goes on to explain how Zeebe solves the problems of scaling and fault tolerance Scaling a distributed workflow engine (CamundaCon 2019) - YouTube. You can also read more about our technical concepts here. Lastly, to more directly answer your question about RocksDB. Zeebe does us…

Furthermore, events can be exported. Out of the box, Camunda 8 offers an exporter to Elasticsearch. The data produced by the exporter is used by the webapplications (Tasklist, Operate, Optimize). You can write your own exporters, but beware that these can become a bottleneck:

Zeebe | Camunda 8 Docs