The infrastructure-as-code property whereby repeating a deployment always produces the same end state, changing nothing when the target already matches.
Also called idempotent.
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In the Ultra Transcenders books
Each book explains Idempotence in context, with comparison tables and the common traps.
Terms in this definition
- property
In VCF Operations, an attribute describing how an object is configured, such as its vCPU count. Unlike a metric, it captures state rather than performance over time, and it can feed symptom definitions, views, dashboards and reports.
- Model deployment
Inside a resource, each deployment is a named copy of a Foundry model with its own TPM quota and deployment type. Requests identify the model by this deployment name.
- State
A parameter in OAuth that carries custom data through the authorisation flow and back, as with the "Support state parameter" option in APIM.
Related terms
- At-least-once delivery
A guarantee that every message or change arrives, though possibly more than once, for instance when a handler fails or a lock is lost. Code that processes it therefore needs to be idempotent.