How deeply does Google Anthos in Action cover statefulness?

Defines statefulness through session retention and prior transactions, then stops short of detailing stateful deployment YAML.

Statefulness

As explained in Google Anthos in Action

A stateful application retains client-session or other operational state that can affect subsequent requests.

Statefulness describes an application whose server stores client-session data, allowing the current transaction to be affected by previous transactions. section 15.4.3

Statefulness has direct deployment implications:

Route each request from a user to the same server when that server retains the relevant session state. section 15.4.3
Contrast stateful behavior with stateless applications, whose servers store no client-session knowledge or transaction history. section 15.4.3
Account for the distinction when interpreting migration-generated Kubernetes deployment specifications. section 15.4.3

How Google Anthos in Action covers it

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Also explained in

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Kafka for ArchitectsA stateful system is a system whose behavior or operation depends on data maintained across requests or processing intervals.
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Kafka Streams in Action, Second EditionA stateful application is a program that retains processing state across multiple input events.
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React Quickly, Second EditionA stateful application is an application whose behavior or user-interface output depends on data that can change over time.
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Kubernetes for DevelopersA stateful application depends on persistent or retained state across requests, executions, or instance replacements.
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Kubernetes in Action, Second EditionA stateful backend is a backend application component whose operation depends on retained application or client state.
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Functional Design and Architecture: Examples in HaskellA stateful application is an application whose behavior depends on information retained across operations or interactions.
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Real-World CryptographyA stateful signature scheme requires persistent state, such as a counter, to prevent reuse of one-time signing material.
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Data-Oriented Programming: Reduce software complexityStateful code is code whose behavior or effects involve persistent state beyond the values passed directly to a computation.
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Learn Docker in a Month of Lunches, Second EditionA stateful application is an application whose behavior or future results depend on data retained from prior interactions or executions.
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AI for Everyday ITStatefulness is the ability of a system to remember previous interactions or states and use that information in subsequent interactions.
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Functional Programming in Scala, Second EditionA stateful API is a program interface whose behavior or results depend on state maintained across interactions.
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Road to KubernetesA stateful containerized application is a containerized application whose behavior or data depends on persistent state across operations or restarts.
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React in DepthA stateful component is a React component that maintains state and can trigger updates when that state changes.

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Related concepts

stateless systemcontrasts with · A stateless system handles each operation without relying on state retained from prior operations, though state may be maintained externally.
databaseincludes · A database is an organized collection of persistent data managed by software for storage, retrieval, querying, and modification.
state storeuses · A state store is a storage component that maintains application or processing state and provides mechanisms to access or update it.
stateuses · State is information or a configuration describing the condition of a system, entity, or computation at a particular time and potentially influencing subsequent behavior or decisions.
StatefulSetimplemented by · A StatefulSet is a Kubernetes workload resource that manages stateful Pods with stable identities, ordered operations, and persistent storage associations.
load balancinguses · Load balancing is the distribution of requests or computational work across multiple resources to manage demand, reduce workload imbalance, and improve utilization or availability.

This explainer was generated by Manning's knowledge graph from the text of Google Anthos in Action. The section links point to the parts of the book it draws on.