~/talk

CAPA: An Architecture For Operating Cluster Networks With High Availability

on YouTube 16m
Talkat 21st USENIX Symposium on Networked Systems Design and Implementation (NSDI '24) · 2024-04-16..04-18· [networking]

speakers

name:Bingzhe Liu
links:none on file
name:Colin Scott
links:none on file
name:Mukarram Tariq
links:none on file
name:Andrew D. Ferguson
links:none on file
name:Phillipa Gill
links:none on file
name:Richard Alimi
links:none on file
name:Omid Alipourfard
links:none on file
name:Deepak Arulkannan
links:none on file
name:Virginia Jean Beauregard
links:none on file
name:Patrick Conner‎
links:none on file
name:P. Brighten Godfrey
links:none on file
name:Xander Lin
links:none on file
name:Joon Ong
links:none on file
name:Mayur Patel
links:none on file
name:Amr Sabaa
links:none on file
name:Arjun Singh
links:none on file
name:Alex Smirnov
links:none on file
name:Manish Verma
links:none on file
name:Prerepa V Viswanadham
links:none on file
name:Amin Vahdat
linkedin:vahdat

resources

video:https://youtu.be/79Tssr4WMNo
slides:none on file

summary

Google describes CAPA as a three‑layer architecture that funnels all management changes through a thin regulation funnel that enforces best practices such as two rate‑control policies, continuous data‑plane health monitoring, and a rollback path. It adds concrete fixes like BGP fail-static to avoid control‑plane withdrawals. Case studies and postmortem reanalysis claim CAPA could have prevented ~84% of past management‑induced incidents and coincide with an 82% reduction in cumulative incident duration normalized to fleet size over five years.

AI-written summary · about

chapters (10)

  1. 0:00CAPA introduction
  2. 1:41Network management outages
  3. 3:28Network best practices challenges
  4. 5:15CAPA enforces safety
  5. 7:45Failure domains isolation
  6. 9:09Rate control for workflows
  7. 11:16Safety versus velocity
  8. 12:21CAPA’s impact on outages
  9. 14:26Success stories
  10. 15:50Summary & Q&A

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