| Temporal workflow orchestration | Data residency for workflow history; the customer’s existing Temporal (Temporal Cloud or self-hosted) already lives inside their certified perimeter and their incident-response runbook. | Temporal |
| PostgreSQL relational database | Regulated data stays on the customer’s already-certified database (RDS in their VPC, on-prem PostgreSQL behind their CA, etc.). Backup, patch cadence, and DBA ownership are the customer’s. | PostgreSQL |
| MongoDB document database | Document data stays in the customer’s existing MongoDB (Atlas or self-hosted), under their existing access controls, network access, and backup configuration. PrivateLink to Atlas is the recommended production posture when the customer is on Atlas. | MongoDB |
| Elasticsearch family (Elasticsearch, Lucenia, OpenSearch) | Search and log-aggregation indices stay on the customer’s existing cluster, under their existing access controls, snapshot policy, and observability. Lucenia is the recommended commercial alternative (Tensor9 partner). | Elasticsearch |
| Kafka event streaming | Event streams stay on the customer’s existing brokers (Confluent Cloud, MSK, Strimzi, Redpanda), so retention policy, ACL administration, and cross-region replication remain the customer’s responsibility. | Kafka |
| Redis cache, session store, pub/sub | Cache, session, and rate-limit state stay on the customer’s existing Redis (ElastiCache, MemoryDB, Memorystore, self-hosted), under their existing eviction policy, snapshot schedule, and observability. | Redis |
| Valkey cache (Linux Foundation BSD-licensed fork of Redis) | Customers who want the Redis API on a vendor-neutral OSS license. AWS ElastiCache for Valkey, GCP Memorystore for Valkey, and self-hosted Valkey are all first-class. Separate from Redis Inc. licensing. | Valkey |