Initial commit
This commit is contained in:
defiQUG
477
docs/monitoring.md
Normal file
477
docs/monitoring.md
Normal file
@@ -0,0 +1,477 @@
|
||||
# DBIS Core Banking System - Monitoring Guide
|
||||
|
||||
This guide provides comprehensive monitoring strategies, architecture, and best practices for the DBIS Core Banking System.
|
||||
|
||||
## Monitoring Architecture
|
||||
|
||||
```mermaid
|
||||
graph TB
|
||||
subgraph "Application Layer"
|
||||
APP1[App Instance 1]
|
||||
APP2[App Instance 2]
|
||||
APPN[App Instance N]
|
||||
end
|
||||
|
||||
subgraph "Monitoring Infrastructure"
|
||||
METRICS[Metrics Collector]
|
||||
LOGS[Log Aggregator]
|
||||
TRACES[Distributed Tracer]
|
||||
ALERTS[Alert Manager]
|
||||
end
|
||||
|
||||
subgraph "Storage & Analysis"
|
||||
METRICS_DB[Metrics Database<br/>Prometheus/InfluxDB]
|
||||
LOG_DB[Log Storage<br/>ELK/Splunk]
|
||||
TRACE_DB[Trace Storage<br/>Jaeger/Zipkin]
|
||||
end
|
||||
|
||||
subgraph "Visualization"
|
||||
DASHBOARDS[Dashboards<br/>Grafana/Kibana]
|
||||
ALERT_UI[Alert Dashboard]
|
||||
end
|
||||
|
||||
APP1 --> METRICS
|
||||
APP2 --> METRICS
|
||||
APPN --> METRICS
|
||||
|
||||
APP1 --> LOGS
|
||||
APP2 --> LOGS
|
||||
APPN --> LOGS
|
||||
|
||||
APP1 --> TRACES
|
||||
APP2 --> TRACES
|
||||
APPN --> TRACES
|
||||
|
||||
METRICS --> METRICS_DB
|
||||
LOGS --> LOG_DB
|
||||
TRACES --> TRACE_DB
|
||||
|
||||
METRICS_DB --> DASHBOARDS
|
||||
LOG_DB --> DASHBOARDS
|
||||
TRACE_DB --> DASHBOARDS
|
||||
|
||||
METRICS_DB --> ALERTS
|
||||
ALERTS --> ALERT_UI
|
||||
```
|
||||
|
||||
## Key Metrics to Monitor
|
||||
|
||||
### Application Metrics
|
||||
|
||||
```mermaid
|
||||
graph LR
|
||||
subgraph "Application Metrics"
|
||||
REQ[Request Rate]
|
||||
LAT[Latency]
|
||||
ERR[Error Rate]
|
||||
THR[Throughput]
|
||||
end
|
||||
|
||||
subgraph "Business Metrics"
|
||||
PAY[Payment Volume]
|
||||
SET[Settlement Time]
|
||||
FX[FX Trade Volume]
|
||||
CBDC[CBDC Transactions]
|
||||
end
|
||||
|
||||
subgraph "System Metrics"
|
||||
CPU[CPU Usage]
|
||||
MEM[Memory Usage]
|
||||
DISK[Disk I/O]
|
||||
NET[Network I/O]
|
||||
end
|
||||
```
|
||||
|
||||
#### Critical Metrics
|
||||
|
||||
1. **API Response Times**
|
||||
- p50, p95, p99 latencies
|
||||
- Per-endpoint breakdown
|
||||
- SLA compliance tracking
|
||||
|
||||
2. **Error Rates**
|
||||
- Total error rate
|
||||
- Error rate by endpoint
|
||||
- Error rate by error type
|
||||
- 4xx vs 5xx errors
|
||||
|
||||
3. **Request Throughput**
|
||||
- Requests per second
|
||||
- Requests per minute
|
||||
- Peak load tracking
|
||||
|
||||
4. **Business Metrics**
|
||||
- Payment volume (count and value)
|
||||
- Settlement success rate
|
||||
- FX trade volume
|
||||
- CBDC transaction volume
|
||||
|
||||
### Database Metrics
|
||||
|
||||
```mermaid
|
||||
graph TD
|
||||
subgraph "Database Metrics"
|
||||
CONN[Connection Pool]
|
||||
QUERY[Query Performance]
|
||||
REPL[Replication Lag]
|
||||
SIZE[Database Size]
|
||||
end
|
||||
|
||||
CONN --> HEALTH[Database Health]
|
||||
QUERY --> HEALTH
|
||||
REPL --> HEALTH
|
||||
SIZE --> HEALTH
|
||||
```
|
||||
|
||||
#### Key Database Metrics
|
||||
|
||||
1. **Connection Pool**
|
||||
- Active connections
|
||||
- Idle connections
|
||||
- Connection wait time
|
||||
- Connection pool utilization
|
||||
|
||||
2. **Query Performance**
|
||||
- Slow query count
|
||||
- Average query time
|
||||
- Query throughput
|
||||
- Index usage
|
||||
|
||||
3. **Replication**
|
||||
- Replication lag
|
||||
- Replication status
|
||||
- Replica health
|
||||
|
||||
4. **Database Size**
|
||||
- Table sizes
|
||||
- Index sizes
|
||||
- Growth rate
|
||||
|
||||
### Infrastructure Metrics
|
||||
|
||||
1. **CPU Usage**
|
||||
- Per instance
|
||||
- Per service
|
||||
- Peak usage
|
||||
|
||||
2. **Memory Usage**
|
||||
- Per instance
|
||||
- Memory leaks
|
||||
- Garbage collection metrics
|
||||
|
||||
3. **Disk I/O**
|
||||
- Read/write rates
|
||||
- Disk space usage
|
||||
- I/O wait time
|
||||
|
||||
4. **Network I/O**
|
||||
- Bandwidth usage
|
||||
- Network latency
|
||||
- Packet loss
|
||||
|
||||
## Logging Strategy
|
||||
|
||||
### Log Levels
|
||||
|
||||
```mermaid
|
||||
graph TD
|
||||
FATAL[FATAL<br/>System Unusable]
|
||||
ERROR[ERROR<br/>Error Events]
|
||||
WARN[WARN<br/>Warning Events]
|
||||
INFO[INFO<br/>Informational]
|
||||
DEBUG[DEBUG<br/>Debug Information]
|
||||
TRACE[TRACE<br/>Detailed Tracing]
|
||||
|
||||
FATAL --> ERROR
|
||||
ERROR --> WARN
|
||||
WARN --> INFO
|
||||
INFO --> DEBUG
|
||||
DEBUG --> TRACE
|
||||
```
|
||||
|
||||
### Structured Logging
|
||||
|
||||
All logs should be structured JSON format with the following fields:
|
||||
|
||||
```json
|
||||
{
|
||||
"timestamp": "2024-01-15T10:30:00Z",
|
||||
"level": "INFO",
|
||||
"service": "payment-service",
|
||||
"correlationId": "abc-123-def",
|
||||
"message": "Payment processed successfully",
|
||||
"metadata": {
|
||||
"paymentId": "pay_123",
|
||||
"amount": 1000.00,
|
||||
"currency": "USD",
|
||||
"sourceAccount": "acc_456",
|
||||
"destinationAccount": "acc_789"
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
### Log Categories
|
||||
|
||||
1. **Application Logs**
|
||||
- Business logic execution
|
||||
- Service interactions
|
||||
- State changes
|
||||
|
||||
2. **Security Logs**
|
||||
- Authentication attempts
|
||||
- Authorization failures
|
||||
- Security events
|
||||
|
||||
3. **Audit Logs**
|
||||
- Financial transactions
|
||||
- Data access
|
||||
- Configuration changes
|
||||
|
||||
4. **Error Logs**
|
||||
- Exceptions
|
||||
- Stack traces
|
||||
- Error context
|
||||
|
||||
## Alerting Strategy
|
||||
|
||||
### Alert Flow
|
||||
|
||||
```mermaid
|
||||
sequenceDiagram
|
||||
participant Metric as Metric Source
|
||||
participant Collector as Metrics Collector
|
||||
participant Rule as Alert Rule
|
||||
participant Alert as Alert Manager
|
||||
participant Notify as Notification Channel
|
||||
|
||||
Metric->>Collector: Metric Value
|
||||
Collector->>Rule: Evaluate Rule
|
||||
alt Threshold Exceeded
|
||||
Rule->>Alert: Trigger Alert
|
||||
Alert->>Notify: Send Notification
|
||||
Notify->>Notify: Email/SMS/PagerDuty
|
||||
end
|
||||
```
|
||||
|
||||
### Alert Severity Levels
|
||||
|
||||
1. **Critical**
|
||||
- System down
|
||||
- Data loss risk
|
||||
- Security breach
|
||||
- Immediate response required
|
||||
|
||||
2. **High**
|
||||
- Performance degradation
|
||||
- High error rate
|
||||
- Resource exhaustion
|
||||
- Response within 1 hour
|
||||
|
||||
3. **Medium**
|
||||
- Warning conditions
|
||||
- Degraded performance
|
||||
- Response within 4 hours
|
||||
|
||||
4. **Low**
|
||||
- Informational
|
||||
- Minor issues
|
||||
- Response within 24 hours
|
||||
|
||||
### Key Alerts
|
||||
|
||||
#### Critical Alerts
|
||||
|
||||
1. **System Availability**
|
||||
- Service down
|
||||
- Database unavailable
|
||||
- HSM unavailable
|
||||
|
||||
2. **Data Integrity**
|
||||
- Ledger mismatch
|
||||
- Transaction failures
|
||||
- Data corruption
|
||||
|
||||
3. **Security**
|
||||
- Authentication failures
|
||||
- Unauthorized access
|
||||
- Security breaches
|
||||
|
||||
#### High Priority Alerts
|
||||
|
||||
1. **Performance**
|
||||
- Response time > SLA
|
||||
- High error rate
|
||||
- Resource exhaustion
|
||||
|
||||
2. **Business Operations**
|
||||
- Payment failures
|
||||
- Settlement delays
|
||||
- FX pricing errors
|
||||
|
||||
## Dashboard Recommendations
|
||||
|
||||
### Executive Dashboard
|
||||
|
||||
```mermaid
|
||||
graph TD
|
||||
subgraph "Executive Dashboard"
|
||||
VOL[Transaction Volume]
|
||||
VAL[Transaction Value]
|
||||
SUCCESS[Success Rate]
|
||||
REVENUE[Revenue Metrics]
|
||||
end
|
||||
```
|
||||
|
||||
**Key Metrics**:
|
||||
- Total transaction volume (24h, 7d, 30d)
|
||||
- Total transaction value
|
||||
- Success rate
|
||||
- Revenue by product
|
||||
|
||||
### Operations Dashboard
|
||||
|
||||
```mermaid
|
||||
graph TD
|
||||
subgraph "Operations Dashboard"
|
||||
HEALTH[System Health]
|
||||
PERFORMANCE[Performance Metrics]
|
||||
ERRORS[Error Tracking]
|
||||
CAPACITY[Capacity Metrics]
|
||||
end
|
||||
```
|
||||
|
||||
**Key Metrics**:
|
||||
- System health status
|
||||
- API response times
|
||||
- Error rates by service
|
||||
- Resource utilization
|
||||
|
||||
### Business Dashboard
|
||||
|
||||
```mermaid
|
||||
graph TD
|
||||
subgraph "Business Dashboard"
|
||||
PAYMENTS[Payment Metrics]
|
||||
SETTLEMENTS[Settlement Metrics]
|
||||
FX[FX Metrics]
|
||||
CBDC[CBDC Metrics]
|
||||
end
|
||||
```
|
||||
|
||||
**Key Metrics**:
|
||||
- Payment volume and value
|
||||
- Settlement success rate
|
||||
- FX trade volume
|
||||
- CBDC transaction metrics
|
||||
|
||||
## Monitoring Tools
|
||||
|
||||
### Recommended Stack
|
||||
|
||||
1. **Metrics Collection**
|
||||
- Prometheus (open source)
|
||||
- InfluxDB (time-series database)
|
||||
- Grafana (visualization)
|
||||
|
||||
2. **Log Aggregation**
|
||||
- ELK Stack (Elasticsearch, Logstash, Kibana)
|
||||
- Splunk (enterprise)
|
||||
- Loki (lightweight)
|
||||
|
||||
3. **Distributed Tracing**
|
||||
- Jaeger (open source)
|
||||
- Zipkin (open source)
|
||||
- OpenTelemetry (standard)
|
||||
|
||||
4. **Alerting**
|
||||
- Alertmanager (Prometheus)
|
||||
- PagerDuty (on-call)
|
||||
- Opsgenie (incident management)
|
||||
|
||||
## Implementation Guide
|
||||
|
||||
### Step 1: Instrumentation
|
||||
|
||||
1. Add metrics collection to services
|
||||
2. Implement structured logging
|
||||
3. Add distributed tracing
|
||||
4. Configure health checks
|
||||
|
||||
### Step 2: Infrastructure Setup
|
||||
|
||||
1. Deploy metrics collection service
|
||||
2. Deploy log aggregation service
|
||||
3. Deploy tracing infrastructure
|
||||
4. Configure alerting system
|
||||
|
||||
### Step 3: Dashboard Creation
|
||||
|
||||
1. Create executive dashboard
|
||||
2. Create operations dashboard
|
||||
3. Create business dashboard
|
||||
4. Create custom dashboards as needed
|
||||
|
||||
### Step 4: Alert Configuration
|
||||
|
||||
1. Define alert rules
|
||||
2. Configure notification channels
|
||||
3. Test alert delivery
|
||||
4. Document runbooks
|
||||
|
||||
## Best Practices
|
||||
|
||||
1. **Correlation IDs**
|
||||
- Include correlation ID in all logs
|
||||
- Trace requests across services
|
||||
- Enable request-level debugging
|
||||
|
||||
2. **Sampling**
|
||||
- Sample high-volume metrics
|
||||
- Use adaptive sampling for traces
|
||||
- Preserve all error traces
|
||||
|
||||
3. **Retention**
|
||||
- Define retention policies
|
||||
- Archive old data
|
||||
- Comply with regulatory requirements
|
||||
|
||||
4. **Performance Impact**
|
||||
- Minimize monitoring overhead
|
||||
- Use async logging
|
||||
- Batch metric updates
|
||||
|
||||
## Recommendations
|
||||
|
||||
### Priority: High
|
||||
|
||||
1. **Comprehensive Monitoring**
|
||||
- Implement all monitoring layers
|
||||
- Monitor business and technical metrics
|
||||
- Set up alerting for critical issues
|
||||
|
||||
2. **Dashboard Standardization**
|
||||
- Use consistent dashboard templates
|
||||
- Standardize metric naming
|
||||
- Enable dashboard sharing
|
||||
|
||||
3. **Alert Tuning**
|
||||
- Start with conservative thresholds
|
||||
- Tune based on actual behavior
|
||||
- Reduce false positives
|
||||
|
||||
4. **Documentation**
|
||||
- Document all dashboards
|
||||
- Document alert runbooks
|
||||
- Maintain monitoring playbook
|
||||
|
||||
For detailed recommendations, see [RECOMMENDATIONS.md](./RECOMMENDATIONS.md).
|
||||
|
||||
---
|
||||
|
||||
## Related Documentation
|
||||
|
||||
- [Best Practices Guide](./BEST_PRACTICES.md)
|
||||
- [Recommendations](./RECOMMENDATIONS.md)
|
||||
- [Development Guide](./development.md)
|
||||
- [Deployment Guide](./deployment.md)
|
||||
|
||||
Reference in New Issue
Block a user