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The DCAE services components includes all the microservices - collectors, analytics and event processor which supports active data-flows and processing as required by ONAP usecases. The architecture of DCAE targets flexible, micros-service oriented, model based component design and deployment. DCAE offers support for multi-site collection and analytics operations which are essential for large ONAP deployments.

2. New component capabilities for

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London, i.e. the functional enhancements

Following are the planned scope for Kohn London release  (more info on the commitment and supporting companies documented under DCAE R12 London M2 Release Planning)

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• • Support TSC approved ONAP Usecases and Features (details below* 

    • REQ-1379 - Improve DCAE PRH to handle Early PNF Registrations (DT)

  • Alignment with TSC/SECCOM Global requirements & TSC/SECCOM Best Practice
  • OpenSSF Best Practice progression (target Gold badging)
  • SBOM Report integration with CI and validation*
  • Continue AAF certificate dependency removal (by making it a configurable property)
  • Microservice enhancements in support for ONAP usecases/features 
    • SliceAnalysis Ms (under E2E Slicing/IBN/CCVPN), SON-Handler (5G SON)
  • Enable automated static-check code review/scan with CI/verify job 
  • Improving code coverage across all DCAE components
  • DCAE backlog reductionArchival of DCAE MOD repositories and components

       *  Pending committment (dependent on community contribution/support)

Services Introduction

Following new service will be delivered for Kohnis targetted for London (Supported by Wipro)

• • ML MS (REQ-1074)
    • Repository : https://git.onap.org/dcaegen2/services/tree/components/ml-prediction-ms (introduced as new subproject under existing repo)

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Refer DCAE R12 London M2 Release Planning#Scope for more details

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Deprecation Notice:

• • Acumos Adapter

DCAE MOD under assessment for EOL with London release

DCAEMOD will be deprecated from DCAE in London release. 

Background : DCAE MOD was introduced in Frankfurt release to address following requirements:

1. 1. Simplified and streamlined onboarding for DCAE components/microservice and distribute the deployment artifact with DCAE-Core Platform (Cloudify)
   2. Provide Common Catalog for reusable DCAE microservices for Designer to leverage
   3. Enable automated onboarding for ML microservices from Acumos. 

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Acumos project has been archived under LF (end of 2021). And with DCAE platform transformation feature, requirement

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#a and

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#b are less critical as the onboarding/deployment are easily managed through Helm-Charts and catalog supported through Chartmuseum (or any other registry).

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  As some MOD components are on java8 due to upstream dependency with Apache/Nifi project on java8 and have SECCOM exception currently, team had decided to retire MOD.

(TSC Notification : https://lists.onap.

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          KOHN Deployment 

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org/g/onap-tsc/topic/dcae_mod_eol_with_london/92490689)

 Deployment 

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3. New or modified interfaces

New External interfaces

• • None

Modified interfaces

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       With REQ-1379  (Improve DCAE PRH to handle Early PNF Registrations) - PRH publish interface will be switched to use Kafka API directly (replacing DMAAP). No change/impact to SO.

Deprecated interfaces

• • With deprecation of Acumos Adapter, interface with Acumos project will no longer be supported

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DCAE R12 London M2 Release Planning#APIOutgoingDependencies

Existing platform API's - https://docs.onap.org/projects/onap-dcaegen2/en/latest/sections/offeredapis.html

DCAE Platform

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DCAE Service Components

• • VES-Collector
  • HV-VES (High Volume VES)
  • PRH (PNF Registration Handler)
  • DFC (DataFile Collector)
  • 3GPP PM Mapper
  • PM Subscription Handler
  • DCAE SDK
  • RESTConf
  • DES
  • PMSH
  • Slice-Analysis MS 

Deprecation Notice: Following Platform API's will be deprecated post Kohn release if no new usecase/driver is identified for ONAP releases. For the interim time, MOD component will be retained in deployment using Jakarta version (no new enhancement/updates are planned) 

• • Onboarding HTTP API (MOD)*

6. What are the system limits

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VES Collector Performance Test

PM-Mapper performance baseline

Datafile Collector (DFC) performance baseline results

HV-VES Performance Test

7. Involved use cases, architectural capabilities or functional requirements

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8. Platform Maturity Targets

Kohn London Release Platform Maturity

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No model changes planned for Kohn London release