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Google SRE book

~2 mins read

• Fail sanely
• Progressive rollouts
• Monitoring
  • Pages
  • Tickets
  • Logging
• Measure in terms of the user
• Error budgets
• Postmortems
• Capacity planning
  • N+2 instances
  • Load testing
  • Validate forecasts with reality
• Exponential back off
• SRE half operational half development
• Disaster role playing

Preparedness And Disaster testing

• Figure out ways to make it more robust
• Ensure that systems will react as we think
• Determine weaknesses
• Live drills
• Swing capacity
• Focus on safety
• attention to detail
• Simulations
• Training and certs
• Detailed requirements and design
• Defense in depth and breadth

Postmortem culture

• What happened
• The effectiveness of the response
• What we would do differently next time
• What actions will be taken to make sure it doesn’t happen again

Automation and reduced overhead

• Automation is a double edged sword
• Methodical human approach is an alternative
• Slow and steady is better in high stake cases
• Multiple checks and balances
• Human oversight

Structural and rational decision making

• The inputs are clear
• The basis is agreed upon in advance
• Any assumption are explicitly stated
• Data driven over feelings and opinions