This architecture uses Azure Cosmos DB for NoSQL. The processed requests are persisted in the global database.įor other data considerations, see Misson-critical guidance in Well-architected Framework: Data platform considerations. The broker serves the need for buffering and reliable messaging. The only stateful service in the regional stamp is the message broker, which stores requests for a short period. All instances should be able to handle read and write requests. The application should be able to instantly connect with another region. Also, in case of a failure, write requests to the database should still be functional.ĭata replication in an active-active configuration is highly recommended.
For mission-critical workloads, synchronizing data across regions should be the primary concern. Build redundancy by deploying the database across regions. It's recommended that all state is stored globally in a database separated from regional stamps.
In this architecture, there are two data stores: Is the data encrypted? Can the datastore be reached over public network? In case of a failure, is the data store able to fail over automatically? What measures are in place to reduce the failover time? Is the data expected to long lasting? What is the retention policy?
Is the data store required to be always available? What impact will the distance between the user and the data store have on latency? What is the desired level of consistency with tradeoff on latency? The choice of technology is based on these key architectural characteristics: Characteristics Our services include specialist technical support, CPD presentations, roof surveys and condition reporting and on-site support throughout the lifecycle of the project.In a mission-critical architecture, any state must be stored outside the compute as much as possible. Our services are far reaching over the design and specification stages of commercial projects, right through to project completion and beyond.
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