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Policy: AWS > Well-Architected Tool > AWS Well-Architected Framework > Reliability > REL 05. How do you design interactions in a distributed system to mitigate or withstand failures?

Distributed systems rely on communications networks to interconnect components (such as servers or services). Your workload must operate reliably despite data loss or latency over these networks. Components of the distributed system must operate in a way that does not negatively impact other components or the workload. These best practices enable workloads to withstand stresses or failures, more quickly recover from them, and mitigate the impact of such impairments. The result is improved mean time to recovery (MTTR).

See REL 05. How do you design interactions in a distributed system to mitigate or withstand failures? for more information.

Targets

This policy targets the following resource types:

  • AWS > Well-Architected Tool > AWS Well-Architected Framework

Primary Policy

This policy is used with the following primary policy:

  • AWS > Well-Architected Tool > AWS Well-Architected Framework > Reliability

Related Policies

  • Set client timeouts
  • Implement emergency levers
  • Fail fast and limit queues
  • Make services stateless where possible
  • Implement graceful degradation to transform applicable hard dependencies into soft dependencies
  • Control and limit retry calls
  • Throttle requests

Controls

Setting this policy configures this control:

  • AWS > Well-Architected Tool > AWS Well-Architected Framework > Reliability > REL 05. How do you design interactions in a distributed system to mitigate or withstand failures?

Policy Specification

Schema Type
string
Default
Skip
Valid Values [YAML]
  • Skip

  • Check: Choices based on sub policies

  • Check: None of these

  • Check: Question does not apply to this workload

  • Enforce: Choices based on sub policies

  • Enforce: None of these

  • Enforce: Question does not apply to this workload
Examples [YAML]
  • Skip

Category

  • Other

In Your Workspace

  • Policy Settings by Type report

Developers

    Category URI
    • tmod:@turbot/turbot#/control/categories/other
    • Policy Type URI
    • tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel05
    • GraphQL
    • query policyType(id: "tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel05") { … }
    • query policySettings(filter: "policyTypeId:'tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel05'") { … }
    • query policyValues(filter: "policyTypeId:'tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel05'") { … }
    • CLI
    • Get Policy Type
    • turbot graphql policy-type --id "tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel05"
      • Get Policy Settings
    • turbot graphql policy-settings --filter "policyTypeId:tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel05"
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