33.1. Failover to Local Services; Performance with Local Caching

One of the NextGen requirements is some degree of recovery from remote service failure, such as a (temporarily) unavailable product database.

Access to product information is the first case used to explore the recovery and failover design strategy. Afterwards, access to the accounting service is explored, which has a slightly different solution.

To review part of the technical memo:

Technical MemoIssue: Reliability—Recovery from Remote Service Failure

Solution Summary: Location transparency using service lookup, failover from remote to local, and local service partial replication.

Factors

  • Robust recovery from remote service failure (e.g., tax calculator, inventory)

  • Robust recovery ...

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