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This page will help you choose the appropriate storage service for your remote Kafka Streams state stores
Supported Storage Services
Responsive supports the following databases as Kafka Streams state stores.
Considerations for choosing the right storage service
The pro's and con's of each of these services is enumerated below:
| Service | Pros | Cons | Notes |
|---|---|---|---|
| MongoDB | Widely supported; Production Grade; Robust deployment options; Flexible indexing schemes | Uses BTree indexes, which can impact write throughput | If you already use MongoDB and don't have very large amounts of state, MongoDB may be perfect for you. |
| ScyllaDB | Production grade database; Uses LSM trees, and thus can support high volume writes at large scale | Cloud options not as mature as MongoDB | Use ScyllaDB if you have large amounts of state with high write volumes and need a high performance store. |
| RS3 | Uses SlateDB with persistence on S3. Is extremely cost effective and elastic, which makes many large state apps economical | Is in private beta, and not yet advised for mission-critical workloads | RS3 was designed for cloud-native streaming applications. If you have large state and need a more economical remote storage option, this is the right choice for you. |