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CX Deployment Plan for Beta Feature July 2014

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Deployment date: July 1-15 2014

Project: Content Translation Framework

Initial Release: Beta Feature release July 2014

What is targeted for Beta Feature release July 2014

Minimum Viable Product (MVP) for v1.0: https://www.mediawiki.org/wiki/Content_translation/Roadmap#Content_Translation_Minimum_Viable_Product_.28MVP.29_release

Long-term project roadmap: https://www.mediawiki.org/wiki/Content_translation/Roadmap

Language Pair to be supported for MVP: Spanish - Catalan

Release as: Beta Feature

Overall Plan

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We plan to have deploy the CX framework for only Spanish and Catalan language wikis to support article content translation for Spanish to Catalan where there are red links for parallel articles in Catalan.

System Architecture

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See: https://www.mediawiki.org/wiki/Content_translation/Technical_Architecture

https://www.mediawiki.org/wiki/Content_translation#Workflow_and_Technical_Architecture

https://www.mediawiki.org/wiki/Content_translation

Caching Architecture

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The following diagram includes the caching requirements for the CX framework.

https://www.mediawiki.org/wiki/Content_translation/Server_communications_workflow

https://commons.wikimedia.org/wiki/File:CX_ArchitectureV1.svg

Components to be provisioned for production

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CX server installation and configuration: https://git.wikimedia.org/markdown/mediawiki%2Fservices%2Fcxserver.git/HEAD/README.md

See Setup: https://www.mediawiki.org/wiki/Content_translation/Setup for detailed information about component, installation and configuation and instructions.

  • Node.js
  • Apertium
  • Extension dependencies:
    • BetaFeatures
    • CLDR
    • EventLogging
  • Backend Services

Varnish:

  • External APIs called by CX
    • Wikidata
    • Parsoid API
  • Configuration Scripts

Upstart and Systemd scripts are at: https://www.mediawiki.org/wiki/Content_translation/Setup

Provisioning Plan

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a. Storage Requirements To be determined from discussion with ops

b. Hardware Requirements To be determined from discussion with ops

c. Bandwidth Requirements To be determined from discussion with ops

d. Performance expectations

  • MT TPS (Transactions per second)
  • User responsiveness
  • MT Round trip
  • General guidelines

https://www.mediawiki.org/wiki/Performance_guidelines

https://www.mediawiki.org/wiki/Performance_profiling_for_Wikimedia_code

Monitoring and metrics

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  • EventLogging activity for CX
  • Number of users enabling the feature
  • Performance of S:CX, backend calls?
  • Check for node and varnish? Who to page?
  • Graph showing requests or timings for the WikiData API(s) we are calling
  • Graph showing requests or timings for the Parsoid API(s) we are calling

External Signoffs Required

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  • Faidon - Ops
  • Gabriel - Infrastructure architecture
  • Ori - Performance
  • Chris Steipp - Security
  • Greg G - Release engineering
  • Mark - Ops
  • Tim - Platform

LE Team responsibilities

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  • Kartik - Deployment, Engineer
  • Niklas - Engineer, Code Reviewer
  • Santhosh - Engineer, Code Reviewer
  • David - Engineer, Code Reviewer
  • Runa - Team Scrum-Ninja / testing and communications
  • Pau - Feature UX reviewer, designer
  • Amir - Feature signoff
  • Alolita - Engineering coordination, Eng Manager

Updates

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