Performance and scaling
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A powerful experimentation program requires three things:
- A robust identity resolution system.
- Access to a store of user metadata.
- Access to behavioral cohorts.
Amplitude Experiment provides all three. To get the most out of these capabilities, send a request to Amplitude Experiment's endpoint for each user.
Implementation recommendations
Follow these recommendations for the best user experience:
- Use local defaults. All Amplitude SDKs support local defaults for experiments. Use local defaults for all experiments to handle the rare case when Amplitude's systems are unavailable.
- Use local storage (cache) on Client SDKs. Amplitude's client-side SDKs store user variants in local storage, which reduces the number of network calls from the client. For more information, refer to performance and caching.
Architecture
The Amplitude Experiment architecture has two components:
- Fastly CDN. Fastly routes all requests to Amplitude servers.
- Reliable hosted AWS services. Amplitude uses Application Load Balancer, Relational Databases, and DynamoDB to provide high availability.
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