remove health check md files
This commit is contained in:
Pavan Chilukuri
parent
54e5be39e1
commit
ec621f1f28
2 changed files with 0 additions and 363 deletions
|
|
@ -1,200 +0,0 @@
|
||||||
# Cognee Health Check System Implementation
|
|
||||||
|
|
||||||
## Overview
|
|
||||||
|
|
||||||
This implementation provides a comprehensive health check system for the Cognee API that monitors all critical backend components and provides detailed health status information for production deployments, container orchestration, and monitoring systems.
|
|
||||||
|
|
||||||
## Implementation Files
|
|
||||||
|
|
||||||
### 1. `/cognee/api/health.py`
|
|
||||||
- **HealthChecker class**: Main health checking logic
|
|
||||||
- **Health models**: Pydantic models for structured responses
|
|
||||||
- **Component checkers**: Individual health check methods for each service
|
|
||||||
|
|
||||||
### 2. `/cognee/api/client.py` (Updated)
|
|
||||||
- **Enhanced health endpoints**: Three new endpoints replacing the basic health check
|
|
||||||
- **Proper HTTP status codes**: Returns appropriate status codes based on health status
|
|
||||||
|
|
||||||
## Health Check Endpoints
|
|
||||||
|
|
||||||
### 1. `GET /health` - Basic Liveness Probe
|
|
||||||
- **Purpose**: Basic liveness check for container orchestration
|
|
||||||
- **Response**: HTTP 200 (healthy/degraded) or 503 (unhealthy)
|
|
||||||
- **Use case**: Kubernetes liveness probe, load balancer health checks
|
|
||||||
|
|
||||||
### 2. `GET /health/ready` - Readiness Probe
|
|
||||||
- **Purpose**: Kubernetes readiness probe
|
|
||||||
- **Response**: JSON with ready/not ready status
|
|
||||||
- **Use case**: Kubernetes readiness probe, deployment verification
|
|
||||||
|
|
||||||
### 3. `GET /health/detailed` - Comprehensive Health Status
|
|
||||||
- **Purpose**: Detailed health information for monitoring and debugging
|
|
||||||
- **Response**: Complete health status with component details
|
|
||||||
- **Use case**: Monitoring dashboards, troubleshooting, operational visibility
|
|
||||||
|
|
||||||
## Health Check Components
|
|
||||||
|
|
||||||
### Critical Services (Failure = HTTP 503)
|
|
||||||
1. **Relational Database** (SQLite/PostgreSQL)
|
|
||||||
- Tests database connectivity and session creation
|
|
||||||
- Validates schema accessibility
|
|
||||||
|
|
||||||
2. **Vector Database** (LanceDB/Qdrant/PGVector/ChromaDB)
|
|
||||||
- Tests vector database connectivity
|
|
||||||
- Validates index accessibility
|
|
||||||
|
|
||||||
3. **Graph Database** (Kuzu/Neo4j/FalkorDB/Memgraph)
|
|
||||||
- Tests graph database connectivity
|
|
||||||
- Validates schema and basic operations
|
|
||||||
|
|
||||||
4. **File Storage** (Local/S3)
|
|
||||||
- Tests file system or S3 accessibility
|
|
||||||
- Validates read/write permissions
|
|
||||||
|
|
||||||
### Non-Critical Services (Failure = Degraded Status)
|
|
||||||
1. **LLM Provider** (OpenAI/Ollama/Anthropic/Gemini)
|
|
||||||
- Validates configuration and API key presence
|
|
||||||
- Non-blocking for core functionality
|
|
||||||
|
|
||||||
2. **Embedding Service**
|
|
||||||
- Tests embedding engine accessibility
|
|
||||||
- Non-blocking for core functionality
|
|
||||||
|
|
||||||
## Response Format
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"status": "healthy|degraded|unhealthy",
|
|
||||||
"timestamp": "2024-01-15T10:30:45Z",
|
|
||||||
"version": "1.0.0",
|
|
||||||
"uptime": 3600,
|
|
||||||
"components": {
|
|
||||||
"relational_db": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "sqlite",
|
|
||||||
"response_time_ms": 45,
|
|
||||||
"details": "Connection successful"
|
|
||||||
},
|
|
||||||
"vector_db": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "lancedb",
|
|
||||||
"response_time_ms": 120,
|
|
||||||
"details": "Index accessible"
|
|
||||||
},
|
|
||||||
"graph_db": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "kuzu",
|
|
||||||
"response_time_ms": 89,
|
|
||||||
"details": "Schema validated"
|
|
||||||
},
|
|
||||||
"file_storage": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "local",
|
|
||||||
"response_time_ms": 156,
|
|
||||||
"details": "Storage accessible"
|
|
||||||
},
|
|
||||||
"llm_provider": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "openai",
|
|
||||||
"response_time_ms": 1250,
|
|
||||||
"details": "Configuration valid"
|
|
||||||
},
|
|
||||||
"embedding_service": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "configured",
|
|
||||||
"response_time_ms": 890,
|
|
||||||
"details": "Embedding engine accessible"
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## Health Status Logic
|
|
||||||
|
|
||||||
### Overall Status Determination
|
|
||||||
- **UNHEALTHY**: Any critical service is unhealthy
|
|
||||||
- **DEGRADED**: All critical services healthy, but non-critical services have issues
|
|
||||||
- **HEALTHY**: All services are functioning properly
|
|
||||||
|
|
||||||
### HTTP Status Codes
|
|
||||||
- **200**: Healthy or degraded (service operational)
|
|
||||||
- **503**: Unhealthy (service not ready/available)
|
|
||||||
|
|
||||||
## Usage Examples
|
|
||||||
|
|
||||||
### Kubernetes Deployment
|
|
||||||
```yaml
|
|
||||||
apiVersion: apps/v1
|
|
||||||
kind: Deployment
|
|
||||||
metadata:
|
|
||||||
name: cognee-api
|
|
||||||
spec:
|
|
||||||
template:
|
|
||||||
spec:
|
|
||||||
containers:
|
|
||||||
- name: cognee
|
|
||||||
image: cognee:latest
|
|
||||||
livenessProbe:
|
|
||||||
httpGet:
|
|
||||||
path: /health
|
|
||||||
port: 8000
|
|
||||||
initialDelaySeconds: 30
|
|
||||||
periodSeconds: 10
|
|
||||||
readinessProbe:
|
|
||||||
httpGet:
|
|
||||||
path: /health/ready
|
|
||||||
port: 8000
|
|
||||||
initialDelaySeconds: 5
|
|
||||||
periodSeconds: 5
|
|
||||||
```
|
|
||||||
|
|
||||||
### Docker Compose Health Check
|
|
||||||
```yaml
|
|
||||||
version: '3.8'
|
|
||||||
services:
|
|
||||||
cognee-api:
|
|
||||||
image: cognee:latest
|
|
||||||
healthcheck:
|
|
||||||
test: ["CMD", "curl", "-f", "http://localhost:8000/health"]
|
|
||||||
interval: 30s
|
|
||||||
timeout: 10s
|
|
||||||
retries: 3
|
|
||||||
start_period: 40s
|
|
||||||
```
|
|
||||||
|
|
||||||
### Monitoring Integration
|
|
||||||
```bash
|
|
||||||
# Basic health check
|
|
||||||
curl http://localhost:8000/health
|
|
||||||
|
|
||||||
# Detailed health status for monitoring
|
|
||||||
curl http://localhost:8000/health/detailed | jq '.components'
|
|
||||||
|
|
||||||
# Readiness check
|
|
||||||
curl http://localhost:8000/health/ready
|
|
||||||
```
|
|
||||||
|
|
||||||
## Implementation Benefits
|
|
||||||
|
|
||||||
1. **Production Ready**: Proper HTTP status codes and structured responses
|
|
||||||
2. **Container Orchestration**: Kubernetes-compatible liveness and readiness probes
|
|
||||||
3. **Monitoring Integration**: Detailed component status for observability
|
|
||||||
4. **Graceful Degradation**: Distinguishes between critical and non-critical failures
|
|
||||||
5. **Performance Tracking**: Response time metrics for each component
|
|
||||||
6. **Troubleshooting**: Detailed error messages and component status
|
|
||||||
|
|
||||||
## Error Handling
|
|
||||||
|
|
||||||
- All health checks are wrapped in try-catch blocks
|
|
||||||
- Individual component failures don't crash the health check system
|
|
||||||
- Detailed error messages are provided for troubleshooting
|
|
||||||
- Timeouts and response times are tracked for performance monitoring
|
|
||||||
|
|
||||||
## Security Considerations
|
|
||||||
|
|
||||||
- Health endpoints don't expose sensitive configuration details
|
|
||||||
- Error messages are sanitized to prevent information leakage
|
|
||||||
- No authentication required for basic health checks (standard practice)
|
|
||||||
- Detailed endpoint can be restricted if needed via reverse proxy rules
|
|
||||||
|
|
||||||
This implementation provides a robust, production-ready health check system that meets enterprise requirements for monitoring, observability, and container orchestration.
|
|
||||||
|
|
@ -1,163 +0,0 @@
|
||||||
# Health Check System Implementation Summary
|
|
||||||
|
|
||||||
## What Was Implemented
|
|
||||||
|
|
||||||
### 1. Core Health Check Module (`cognee/api/health.py`)
|
|
||||||
- **HealthChecker class**: Comprehensive health checking system
|
|
||||||
- **Pydantic models**: Structured response models for health data
|
|
||||||
- **Component checkers**: Individual health check methods for each backend service
|
|
||||||
- **Status determination logic**: Proper classification of healthy/degraded/unhealthy states
|
|
||||||
|
|
||||||
### 2. Enhanced API Endpoints (`cognee/api/client.py`)
|
|
||||||
- **`GET /health`**: Basic liveness probe (replaces existing basic endpoint)
|
|
||||||
- **`GET /health/ready`**: Kubernetes readiness probe
|
|
||||||
- **`GET /health/detailed`**: Comprehensive health status with component details
|
|
||||||
|
|
||||||
### 3. Backend Component Health Checks
|
|
||||||
|
|
||||||
#### Critical Services (Failure = HTTP 503)
|
|
||||||
- **Relational Database**: SQLite/PostgreSQL connectivity and session validation
|
|
||||||
- **Vector Database**: LanceDB/Qdrant/PGVector/ChromaDB connectivity and index access
|
|
||||||
- **Graph Database**: Kuzu/Neo4j/FalkorDB/Memgraph connectivity and schema validation
|
|
||||||
- **File Storage**: Local filesystem/S3 accessibility and permissions
|
|
||||||
|
|
||||||
#### Non-Critical Services (Failure = Degraded Status)
|
|
||||||
- **LLM Provider**: OpenAI/Ollama/Anthropic/Gemini configuration validation
|
|
||||||
- **Embedding Service**: Embedding engine accessibility check
|
|
||||||
|
|
||||||
## Key Features
|
|
||||||
|
|
||||||
### 1. Production-Ready Design
|
|
||||||
- Proper HTTP status codes (200 for healthy/degraded, 503 for unhealthy)
|
|
||||||
- Structured JSON responses with detailed component information
|
|
||||||
- Response time tracking for performance monitoring
|
|
||||||
- Graceful error handling and detailed error messages
|
|
||||||
|
|
||||||
### 2. Container Orchestration Support
|
|
||||||
- Kubernetes-compatible liveness and readiness probes
|
|
||||||
- Docker health check support
|
|
||||||
- Proper startup and runtime health validation
|
|
||||||
|
|
||||||
### 3. Monitoring Integration
|
|
||||||
- Detailed component status for observability platforms
|
|
||||||
- Performance metrics (response times)
|
|
||||||
- Version and uptime information
|
|
||||||
- Structured logging for troubleshooting
|
|
||||||
|
|
||||||
### 4. Robust Error Handling
|
|
||||||
- Individual component failures don't crash the health system
|
|
||||||
- Detailed error messages for troubleshooting
|
|
||||||
- Timeout handling and performance tracking
|
|
||||||
- Graceful degradation for non-critical services
|
|
||||||
|
|
||||||
## Response Format Example
|
|
||||||
|
|
||||||
```json
|
|
||||||
{
|
|
||||||
"status": "healthy",
|
|
||||||
"timestamp": "2024-01-15T10:30:45Z",
|
|
||||||
"version": "1.0.0-local",
|
|
||||||
"uptime": 3600,
|
|
||||||
"components": {
|
|
||||||
"relational_db": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "sqlite",
|
|
||||||
"response_time_ms": 45,
|
|
||||||
"details": "Connection successful"
|
|
||||||
},
|
|
||||||
"vector_db": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "lancedb",
|
|
||||||
"response_time_ms": 120,
|
|
||||||
"details": "Index accessible"
|
|
||||||
},
|
|
||||||
"graph_db": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "kuzu",
|
|
||||||
"response_time_ms": 89,
|
|
||||||
"details": "Schema validated"
|
|
||||||
},
|
|
||||||
"file_storage": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "local",
|
|
||||||
"response_time_ms": 156,
|
|
||||||
"details": "Storage accessible"
|
|
||||||
},
|
|
||||||
"llm_provider": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "openai",
|
|
||||||
"response_time_ms": 25,
|
|
||||||
"details": "Configuration valid"
|
|
||||||
},
|
|
||||||
"embedding_service": {
|
|
||||||
"status": "healthy",
|
|
||||||
"provider": "configured",
|
|
||||||
"response_time_ms": 30,
|
|
||||||
"details": "Embedding engine accessible"
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
## Files Created/Modified
|
|
||||||
|
|
||||||
### New Files
|
|
||||||
1. `cognee/api/health.py` - Core health check system
|
|
||||||
2. `examples/health_check_example.py` - Usage examples and monitoring script
|
|
||||||
3. `HEALTH_CHECK_IMPLEMENTATION.md` - Detailed documentation
|
|
||||||
4. `HEALTH_CHECK_SUMMARY.md` - This summary file
|
|
||||||
|
|
||||||
### Modified Files
|
|
||||||
1. `cognee/api/client.py` - Enhanced with new health endpoints
|
|
||||||
|
|
||||||
## Usage Examples
|
|
||||||
|
|
||||||
### Basic Health Check
|
|
||||||
```bash
|
|
||||||
curl http://localhost:8000/health
|
|
||||||
# Returns: HTTP 200 (healthy/degraded) or 503 (unhealthy)
|
|
||||||
```
|
|
||||||
|
|
||||||
### Readiness Check
|
|
||||||
```bash
|
|
||||||
curl http://localhost:8000/health/ready
|
|
||||||
# Returns: {"status": "ready"} or {"status": "not ready", "reason": "..."}
|
|
||||||
```
|
|
||||||
|
|
||||||
### Detailed Health Status
|
|
||||||
```bash
|
|
||||||
curl http://localhost:8000/health/detailed
|
|
||||||
# Returns: Complete health status with component details
|
|
||||||
```
|
|
||||||
|
|
||||||
### Kubernetes Integration
|
|
||||||
```yaml
|
|
||||||
livenessProbe:
|
|
||||||
httpGet:
|
|
||||||
path: /health
|
|
||||||
port: 8000
|
|
||||||
readinessProbe:
|
|
||||||
httpGet:
|
|
||||||
path: /health/ready
|
|
||||||
port: 8000
|
|
||||||
```
|
|
||||||
|
|
||||||
## Benefits Achieved
|
|
||||||
|
|
||||||
1. **Comprehensive Monitoring**: All critical backend services are monitored
|
|
||||||
2. **Production Ready**: Proper HTTP status codes and error handling
|
|
||||||
3. **Container Orchestration**: Kubernetes and Docker compatibility
|
|
||||||
4. **Observability**: Detailed metrics and status information
|
|
||||||
5. **Troubleshooting**: Clear error messages and component status
|
|
||||||
6. **Performance Tracking**: Response time metrics for each component
|
|
||||||
7. **Graceful Degradation**: Distinguishes critical vs non-critical failures
|
|
||||||
|
|
||||||
## Implementation Notes
|
|
||||||
|
|
||||||
- Health checks are designed to be lightweight and fast
|
|
||||||
- Critical service failures result in HTTP 503 (service unavailable)
|
|
||||||
- Non-critical service failures result in degraded status but HTTP 200
|
|
||||||
- All health checks include proper error handling and timeout management
|
|
||||||
- The system is extensible for adding new backend components
|
|
||||||
|
|
||||||
This implementation provides a robust, enterprise-grade health check system that meets the requirements for production deployments, container orchestration, and comprehensive monitoring.
|
|
||||||
Loading…
Add table
Reference in a new issue