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CCAT Data Center

  • Overview & Introduction
  • Scientists Guide
  • Instrument Integration Guide
  • CCAT Data Center Operations
  • Component Developer Documentation
    • Observatory Systems
    • Project
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  • Overview & Introduction
  • Scientists Guide
  • Instrument Integration Guide
  • CCAT Data Center Operations
  • Component Developer Documentation
  • Observatory Systems
  • Project
  • Decisions
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Section Navigation

  • Operations Database (ops-db)
    • Overview
    • Configuration
    • Observatory Hierarchy
    • Observation Model
    • Data Model
    • Location Model
    • Transfer Model
    • Operation Model
    • Database Layout
    • Table Reference
    • Core Database Functions
    • Models API Reference
    • Utilities
    • Related Components
    • Database Migrations
    • Deploying Database Migrations
  • Data Transfer System
    • Philosophy & Design Principles
    • The Transfer Route from CCAT to Cologne
    • Core Concepts
    • Pipeline Architecture
    • Routing & Queue Discovery
    • OperationKind vs OperationType: identity versus routing
    • Monitoring & Failure Recovery
    • Logging Convention
    • Data Lifecycle Management
    • Archive Storage (S3 & Coscine)
    • API Reference
      • Managers
        • Raw Data Package Manager
        • Data Transfer Package Manager
        • Transfer Manager
        • Archive Manager
        • Deletion Manager
        • Staging Manager
      • Services
        • Data Integrity Manager
        • Buffer Manager
        • Disk Monitor
        • Health Check
        • Task Monitor Service
        • Task State Manager
        • Recovery Service Runner
      • Core Utilities
        • Database
        • Configuration
        • Exceptions
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        • Decorators
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        • Settings Manager
      • Celery Tasks
        • Setup Celery App
  • Workflow Manager
    • Overview
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    • Execution Flow
    • Data Grouping & Filter Engine
    • Container Contract
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    • HPC Backends
    • Filter Engine
    • API Reference
      • Managers
      • Celery Tasks
      • HPC Backends
      • Grouping & Filter Engine
      • Command Builder
    • Managers
    • Celery Tasks
    • HPC Backends
    • Grouping & Filter Engine
    • Command Builder
    • Configuration
    • Deployment
    • Related Components
  • CCAT Calibration Engine
    • Overview
    • Quickstart
    • Data Formats
    • Pipeline
    • Sky Diagnostics (SKYDIFF / SKYCHOPDIFF)
    • Physics
      • Rayleigh-Jeans Correction
      • Calibration Loads
      • Atmosphere
      • Observation Modes
      • Calibration Equation
    • Architecture
      • Crate Map
      • Data Structures
      • Pipeline Internals
      • I/O Layer
      • Multi-Pixel
    • Developer Guide
      • Adding an Observation Mode
      • Flag System
      • Telescope Profiles
      • Python Bindings
      • Testing
      • Performance
    • CLI Reference
    • Configuration
    • Glossary
  • Operations Database API (ops-db-api)
    • Quick Start Guide
      • Installation
      • Making Your First API Call
      • Running Locally with Docker Compose
    • Design Philosophy
      • Design Rationale
      • Distributed Architecture
      • Reliability First
    • Architecture Overview
      • System Overview
      • Database Topology
      • Site Configuration
      • Authentication System
      • Endpoint Categories
    • Deep Dive
      • Transaction Buffering
        • Transaction Buffering Overview
        • Transaction Builder
        • Transaction Manager
        • Background Processor
        • LSN Tracking
        • Smart Query Manager
        • Read Buffer Manager
      • Authentication Deep Dive
        • Unified Authentication
        • GitHub OAuth
        • API Tokens
        • Roles and Permissions
      • Routers Deep Dive
        • UI-Focused Routers
        • Operations-Focused Routers
        • Shared Routers
      • Data Flow Examples
      • Caching Strategy
    • Tutorials
      • Simple Endpoints
        • Simple Read Endpoint
        • Simple Write Endpoint
        • Adding Authentication
      • Complex Endpoints
        • Multi-Table Transactions
        • Buffered Critical Operations
        • Smart Queries with Buffering
        • WebSocket Updates
      • Observatory Integration
        • Recording Observations
        • Registering Data Files
        • Service Scripts Best Practices
        • Scheduler Interface
      • UI Integration
        • Dashboard Endpoints
        • Visibility Calculations
        • Transfer Monitoring
    • API Reference
      • Endpoints Reference
      • Schemas Reference
      • Database Models
    • Development Guide
      • Testing
      • Debugging Transaction Buffering
      • Redis Inspection
      • Contributing
    • Product Requirements Documents
      • PRD 0001: DB session/engine lifecycle hardening
      • PRD 0002: Async DB session migration — retire get_db / NullPool sync-in-async
  • Operations Database UI (ops-db-ui)
  • Data Center Configuration

Product Requirements Documents#

PRDs are the source of truth for decisions. Each PRD lives at docs/prd/NNNN-kebab.md (MyST Markdown) and is linked from its GitHub epic.

  • PRD 0001: DB session/engine lifecycle hardening
  • PRD 0002: Async DB session migration — retire get_db / NullPool sync-in-async

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Contributing

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PRD 0001: DB session/engine lifecycle hardening
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