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Use case · API hosting

Give applications a stable endpoint close to users and connected systems.

Shared High Performance or Dedicated CPU, depending on sustained load.

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What should an API server prioritize?

An API server should prioritize predictable response time, enough memory for concurrent requests, and a location close to its callers. Shared High Performance suits many production APIs; Dedicated CPU is better when sustained traffic or latency variance becomes costly.

What the server can support

  • Serve application and integration traffic
  • Separate public APIs from development environments
  • Observe usage and control the server from one client area

Decide before deployment

  • Request concurrency and response-time targets
  • Database round-trip latency
  • Deployment and rollback strategy

Representative architecture

Keep each dependency visible.

This sequence is a planning model, not a prescribed topology. Change it when the application’s measured request and data paths require a different boundary.

  1. 01Client applications
  2. 02API service
  3. 03Cache and database
  4. 04Queue or background worker
UsersRequest
Latency-sensitive
ApplicationCompute
Frequent round trips
DatabaseData
Independent copy
RecoveryRestore
Place the most conversational systems close together. Keep a recovery copy reachable through an independent access path.

Selection criteria

  • Test sustained concurrency, not one fast request
  • Measure application-to-data round trips from the chosen region
  • Separate latency-sensitive request work from background processing

Failure modes to test

  • Sustained CPU saturation increases tail latency
  • Connection pools can exhaust before average CPU looks busy
  • Retries can amplify a dependency failure

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Current active configurations could not be verified. Use the decision criteria on this page, then retry the catalogue when the connection recovers.

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Recovery implication

Decide what must return before choosing how to protect it.

Keep a previous deploy artifact, database rollback or forward-fix procedure, and a way to drain or replay queued work without duplicating side effects.

01 · DefineRequired data

Application, configuration, credentials, and database.

02 · ProtectIndependent copies

Server-level and application-aware recovery inputs.

03 · RestoreIsolated target

Recover without overwriting the source by default.

04 · VerifyWorking service

Check data, dependencies, access, and application behavior.

A completed backup job proves that a copy was written. A recovery drill proves that the service can return.

Pre-deployment checklist

  1. Define response and error budgets
  2. Exercise dependency timeouts and retry limits
  3. Test deploy rollback
  4. Observe p50 and tail latency under representative concurrency

Choose from evidence, then observe

The suggested family is a starting point, not a guarantee of application performance. Test the software with representative traffic, monitor the constrained resources, and keep application-aware backups. Vloxt exposes eligible server controls and current catalogue choices; the application architecture remains yours.

Read the complete server-selection guide or explore platform features.