// Package distribution provides comprehensive monitoring and observability for distributed context operations
package distribution
import (
"context"
"encoding/json"
"fmt"
"net/http"
"sort"
"sync"
"time"
"github.com/anthonyrawlins/bzzz/pkg/config"
)
// MonitoringSystem provides comprehensive monitoring for the distributed context system
type MonitoringSystem struct {
mu sync.RWMutex
config *config.Config
metrics *MetricsCollector
healthChecks *HealthCheckManager
alertManager *AlertManager
dashboard *DashboardServer
logManager *LogManager
traceManager *TraceManager
// State
running bool
monitoringPort int
updateInterval time.Duration
retentionPeriod time.Duration
}
// MetricsCollector collects and aggregates system metrics
type MetricsCollector struct {
mu sync.RWMutex
timeSeries map[string]*TimeSeries
counters map[string]*Counter
gauges map[string]*Gauge
histograms map[string]*Histogram
customMetrics map[string]*CustomMetric
aggregatedStats *AggregatedStatistics
exporters []MetricsExporter
lastCollection time.Time
}
// TimeSeries represents a time-series metric
type TimeSeries struct {
Name string `json:"name"`
Labels map[string]string `json:"labels"`
DataPoints []*TimeSeriesPoint `json:"data_points"`
RetentionTTL time.Duration `json:"retention_ttl"`
LastUpdated time.Time `json:"last_updated"`
}
// TimeSeriesPoint represents a single data point in a time series
type TimeSeriesPoint struct {
Timestamp time.Time `json:"timestamp"`
Value float64 `json:"value"`
Labels map[string]string `json:"labels,omitempty"`
}
// Counter represents a monotonically increasing counter
type Counter struct {
Name string `json:"name"`
Value int64 `json:"value"`
Rate float64 `json:"rate"` // per second
Labels map[string]string `json:"labels"`
LastUpdated time.Time `json:"last_updated"`
}
// Gauge represents a value that can go up and down
type Gauge struct {
Name string `json:"name"`
Value float64 `json:"value"`
Min float64 `json:"min"`
Max float64 `json:"max"`
Average float64 `json:"average"`
Labels map[string]string `json:"labels"`
LastUpdated time.Time `json:"last_updated"`
}
// Histogram represents distribution of values
type Histogram struct {
Name string `json:"name"`
Buckets map[float64]int64 `json:"buckets"`
Count int64 `json:"count"`
Sum float64 `json:"sum"`
Labels map[string]string `json:"labels"`
Percentiles map[float64]float64 `json:"percentiles"`
LastUpdated time.Time `json:"last_updated"`
}
// CustomMetric represents application-specific metrics
type CustomMetric struct {
Name string `json:"name"`
Type MetricType `json:"type"`
Value interface{} `json:"value"`
Metadata map[string]interface{} `json:"metadata"`
Labels map[string]string `json:"labels"`
LastUpdated time.Time `json:"last_updated"`
}
// MetricType represents the type of custom metric
type MetricType string
const (
MetricTypeCounter MetricType = "counter"
MetricTypeGauge MetricType = "gauge"
MetricTypeHistogram MetricType = "histogram"
MetricTypeSummary MetricType = "summary"
MetricTypeCustom MetricType = "custom"
)
// AggregatedStatistics provides high-level system statistics
type AggregatedStatistics struct {
SystemOverview *SystemOverview `json:"system_overview"`
PerformanceMetrics *PerformanceOverview `json:"performance_metrics"`
HealthMetrics *HealthOverview `json:"health_metrics"`
ErrorMetrics *ErrorOverview `json:"error_metrics"`
ResourceMetrics *ResourceOverview `json:"resource_metrics"`
NetworkMetrics *NetworkOverview `json:"network_metrics"`
LastUpdated time.Time `json:"last_updated"`
}
// SystemOverview provides system-wide overview metrics
type SystemOverview struct {
TotalNodes int `json:"total_nodes"`
HealthyNodes int `json:"healthy_nodes"`
TotalContexts int64 `json:"total_contexts"`
DistributedContexts int64 `json:"distributed_contexts"`
ReplicationFactor float64 `json:"average_replication_factor"`
SystemUptime time.Duration `json:"system_uptime"`
ClusterVersion string `json:"cluster_version"`
LastRestart time.Time `json:"last_restart"`
}
// PerformanceOverview provides performance metrics
type PerformanceOverview struct {
RequestsPerSecond float64 `json:"requests_per_second"`
AverageResponseTime time.Duration `json:"average_response_time"`
P95ResponseTime time.Duration `json:"p95_response_time"`
P99ResponseTime time.Duration `json:"p99_response_time"`
Throughput float64 `json:"throughput_mbps"`
CacheHitRate float64 `json:"cache_hit_rate"`
QueueDepth int `json:"queue_depth"`
ActiveConnections int `json:"active_connections"`
}
// HealthOverview provides health-related metrics
type HealthOverview struct {
OverallHealthScore float64 `json:"overall_health_score"`
ComponentHealth map[string]float64 `json:"component_health"`
FailedHealthChecks int `json:"failed_health_checks"`
LastHealthCheck time.Time `json:"last_health_check"`
HealthTrend string `json:"health_trend"` // improving, stable, degrading
CriticalAlerts int `json:"critical_alerts"`
WarningAlerts int `json:"warning_alerts"`
}
// ErrorOverview provides error-related metrics
type ErrorOverview struct {
TotalErrors int64 `json:"total_errors"`
ErrorRate float64 `json:"error_rate"`
ErrorsByType map[string]int64 `json:"errors_by_type"`
ErrorsByComponent map[string]int64 `json:"errors_by_component"`
LastError *ErrorEvent `json:"last_error"`
ErrorTrend string `json:"error_trend"` // increasing, stable, decreasing
}
// ResourceOverview provides resource utilization metrics
type ResourceOverview struct {
CPUUtilization float64 `json:"cpu_utilization"`
MemoryUtilization float64 `json:"memory_utilization"`
DiskUtilization float64 `json:"disk_utilization"`
NetworkUtilization float64 `json:"network_utilization"`
StorageUsed int64 `json:"storage_used_bytes"`
StorageAvailable int64 `json:"storage_available_bytes"`
FileDescriptors int `json:"open_file_descriptors"`
Goroutines int `json:"goroutines"`
}
// NetworkOverview provides network-related metrics
type NetworkOverview struct {
TotalConnections int `json:"total_connections"`
ActiveConnections int `json:"active_connections"`
BandwidthUtilization float64 `json:"bandwidth_utilization"`
PacketLossRate float64 `json:"packet_loss_rate"`
AverageLatency time.Duration `json:"average_latency"`
NetworkPartitions int `json:"network_partitions"`
DataTransferred int64 `json:"data_transferred_bytes"`
}
// MetricsExporter exports metrics to external systems
type MetricsExporter interface {
Export(ctx context.Context, metrics map[string]interface{}) error
Name() string
IsEnabled() bool
}
// HealthCheckManager manages system health checks
type HealthCheckManager struct {
mu sync.RWMutex
healthChecks map[string]*HealthCheck
checkResults map[string]*HealthCheckResult
schedules map[string]*HealthCheckSchedule
running bool
}
// HealthCheck represents a single health check
type HealthCheck struct {
Name string `json:"name"`
Description string `json:"description"`
CheckType HealthCheckType `json:"check_type"`
Target string `json:"target"`
Timeout time.Duration `json:"timeout"`
Interval time.Duration `json:"interval"`
Retries int `json:"retries"`
Metadata map[string]interface{} `json:"metadata"`
Enabled bool `json:"enabled"`
CheckFunction func(context.Context) (*HealthCheckResult, error) `json:"-"`
}
// HealthCheckType represents different types of health checks
type HealthCheckType string
const (
HealthCheckTypeHTTP HealthCheckType = "http"
HealthCheckTypeTCP HealthCheckType = "tcp"
HealthCheckTypeCustom HealthCheckType = "custom"
HealthCheckTypeComponent HealthCheckType = "component"
HealthCheckTypeDatabase HealthCheckType = "database"
HealthCheckTypeService HealthCheckType = "service"
)
// HealthCheckResult represents the result of a health check
type HealthCheckResult struct {
CheckName string `json:"check_name"`
Status HealthCheckStatus `json:"status"`
ResponseTime time.Duration `json:"response_time"`
Message string `json:"message"`
Details map[string]interface{} `json:"details"`
Error string `json:"error,omitempty"`
Timestamp time.Time `json:"timestamp"`
Attempt int `json:"attempt"`
}
// HealthCheckStatus represents the status of a health check
type HealthCheckStatus string
const (
HealthCheckStatusHealthy HealthCheckStatus = "healthy"
HealthCheckStatusUnhealthy HealthCheckStatus = "unhealthy"
HealthCheckStatusWarning HealthCheckStatus = "warning"
HealthCheckStatusUnknown HealthCheckStatus = "unknown"
HealthCheckStatusTimeout HealthCheckStatus = "timeout"
)
// HealthCheckSchedule defines when health checks should run
type HealthCheckSchedule struct {
CheckName string `json:"check_name"`
Interval time.Duration `json:"interval"`
NextRun time.Time `json:"next_run"`
LastRun time.Time `json:"last_run"`
Enabled bool `json:"enabled"`
FailureCount int `json:"failure_count"`
}
// AlertManager manages system alerts and notifications
type AlertManager struct {
mu sync.RWMutex
alertRules map[string]*AlertRule
activeAlerts map[string]*Alert
alertHistory []*Alert
notifiers []AlertNotifier
silences map[string]*AlertSilence
running bool
}
// AlertRule defines conditions for triggering alerts
type AlertRule struct {
Name string `json:"name"`
Description string `json:"description"`
Severity AlertSeverity `json:"severity"`
Conditions []*AlertCondition `json:"conditions"`
Duration time.Duration `json:"duration"` // How long condition must persist
Cooldown time.Duration `json:"cooldown"` // Minimum time between alerts
Labels map[string]string `json:"labels"`
Annotations map[string]string `json:"annotations"`
Enabled bool `json:"enabled"`
LastTriggered *time.Time `json:"last_triggered,omitempty"`
}
// AlertCondition defines a single condition for an alert
type AlertCondition struct {
MetricName string `json:"metric_name"`
Operator ConditionOperator `json:"operator"`
Threshold float64 `json:"threshold"`
Duration time.Duration `json:"duration"`
}
// ConditionOperator represents comparison operators for alert conditions
type ConditionOperator string
const (
OperatorGreaterThan ConditionOperator = "gt"
OperatorLessThan ConditionOperator = "lt"
OperatorEquals ConditionOperator = "eq"
OperatorNotEquals ConditionOperator = "ne"
OperatorGreaterOrEqual ConditionOperator = "gte"
OperatorLessOrEqual ConditionOperator = "lte"
)
// Alert represents an active alert
type Alert struct {
ID string `json:"id"`
RuleName string `json:"rule_name"`
Severity AlertSeverity `json:"severity"`
Status AlertStatus `json:"status"`
Message string `json:"message"`
Details map[string]interface{} `json:"details"`
Labels map[string]string `json:"labels"`
Annotations map[string]string `json:"annotations"`
StartsAt time.Time `json:"starts_at"`
EndsAt *time.Time `json:"ends_at,omitempty"`
LastUpdated time.Time `json:"last_updated"`
AckBy string `json:"acknowledged_by,omitempty"`
AckAt *time.Time `json:"acknowledged_at,omitempty"`
}
// AlertSeverity represents the severity level of an alert
type AlertSeverity string
const (
SeverityInfo AlertSeverity = "info"
SeverityWarning AlertSeverity = "warning"
SeverityError AlertSeverity = "error"
SeverityCritical AlertSeverity = "critical"
)
// AlertStatus represents the current status of an alert
type AlertStatus string
const (
AlertStatusFiring AlertStatus = "firing"
AlertStatusResolved AlertStatus = "resolved"
AlertStatusAcknowledged AlertStatus = "acknowledged"
AlertStatusSilenced AlertStatus = "silenced"
)
// AlertNotifier sends alert notifications
type AlertNotifier interface {
Notify(ctx context.Context, alert *Alert) error
Name() string
IsEnabled() bool
}
// AlertSilence represents a silenced alert
type AlertSilence struct {
ID string `json:"id"`
Matchers map[string]string `json:"matchers"`
StartTime time.Time `json:"start_time"`
EndTime time.Time `json:"end_time"`
CreatedBy string `json:"created_by"`
Comment string `json:"comment"`
Active bool `json:"active"`
}
// DashboardServer provides web-based monitoring dashboard
type DashboardServer struct {
mu sync.RWMutex
server *http.Server
dashboards map[string]*Dashboard
widgets map[string]*Widget
customPages map[string]*CustomPage
running bool
port int
}
// Dashboard represents a monitoring dashboard
type Dashboard struct {
ID string `json:"id"`
Name string `json:"name"`
Description string `json:"description"`
Widgets []*Widget `json:"widgets"`
Layout *DashboardLayout `json:"layout"`
Settings *DashboardSettings `json:"settings"`
CreatedBy string `json:"created_by"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
}
// Widget represents a dashboard widget
type Widget struct {
ID string `json:"id"`
Type WidgetType `json:"type"`
Title string `json:"title"`
DataSource string `json:"data_source"`
Query string `json:"query"`
Settings map[string]interface{} `json:"settings"`
Position *WidgetPosition `json:"position"`
RefreshRate time.Duration `json:"refresh_rate"`
LastUpdated time.Time `json:"last_updated"`
}
// WidgetType represents different types of dashboard widgets
type WidgetType string
const (
WidgetTypeMetric WidgetType = "metric"
WidgetTypeChart WidgetType = "chart"
WidgetTypeTable WidgetType = "table"
WidgetTypeAlert WidgetType = "alert"
WidgetTypeHealth WidgetType = "health"
WidgetTypeTopology WidgetType = "topology"
WidgetTypeLog WidgetType = "log"
WidgetTypeCustom WidgetType = "custom"
)
// WidgetPosition defines widget position and size
type WidgetPosition struct {
X int `json:"x"`
Y int `json:"y"`
Width int `json:"width"`
Height int `json:"height"`
}
// DashboardLayout defines dashboard layout settings
type DashboardLayout struct {
Columns int `json:"columns"`
RowHeight int `json:"row_height"`
Margins [2]int `json:"margins"` // [x, y]
Spacing [2]int `json:"spacing"` // [x, y]
Breakpoints map[string]int `json:"breakpoints"`
}
// DashboardSettings contains dashboard configuration
type DashboardSettings struct {
AutoRefresh bool `json:"auto_refresh"`
RefreshInterval time.Duration `json:"refresh_interval"`
TimeRange string `json:"time_range"`
Theme string `json:"theme"`
ShowLegend bool `json:"show_legend"`
ShowGrid bool `json:"show_grid"`
}
// CustomPage represents a custom monitoring page
type CustomPage struct {
Path string `json:"path"`
Title string `json:"title"`
Content string `json:"content"`
ContentType string `json:"content_type"`
Handler http.HandlerFunc `json:"-"`
}
// LogManager manages system logs and log analysis
type LogManager struct {
mu sync.RWMutex
logSources map[string]*LogSource
logEntries []*LogEntry
logAnalyzers []LogAnalyzer
retentionPolicy *LogRetentionPolicy
running bool
}
// LogSource represents a source of log data
type LogSource struct {
Name string `json:"name"`
Type LogSourceType `json:"type"`
Location string `json:"location"`
Format LogFormat `json:"format"`
Labels map[string]string `json:"labels"`
Enabled bool `json:"enabled"`
LastRead time.Time `json:"last_read"`
}
// LogSourceType represents different types of log sources
type LogSourceType string
const (
LogSourceTypeFile LogSourceType = "file"
LogSourceTypeHTTP LogSourceType = "http"
LogSourceTypeStream LogSourceType = "stream"
LogSourceTypeDatabase LogSourceType = "database"
LogSourceTypeCustom LogSourceType = "custom"
)
// LogFormat represents log entry format
type LogFormat string
const (
LogFormatJSON LogFormat = "json"
LogFormatText LogFormat = "text"
LogFormatSyslog LogFormat = "syslog"
LogFormatCustom LogFormat = "custom"
)
// LogEntry represents a single log entry
type LogEntry struct {
Timestamp time.Time `json:"timestamp"`
Level LogLevel `json:"level"`
Source string `json:"source"`
Message string `json:"message"`
Fields map[string]interface{} `json:"fields"`
Labels map[string]string `json:"labels"`
TraceID string `json:"trace_id,omitempty"`
SpanID string `json:"span_id,omitempty"`
}
// LogLevel represents log entry severity
type LogLevel string
const (
LogLevelTrace LogLevel = "trace"
LogLevelDebug LogLevel = "debug"
LogLevelInfo LogLevel = "info"
LogLevelWarn LogLevel = "warn"
LogLevelError LogLevel = "error"
LogLevelFatal LogLevel = "fatal"
)
// LogAnalyzer analyzes log entries for patterns and anomalies
type LogAnalyzer interface {
Analyze(ctx context.Context, entries []*LogEntry) (*LogAnalysisResult, error)
Name() string
}
// LogAnalysisResult represents the result of log analysis
type LogAnalysisResult struct {
AnalyzerName string `json:"analyzer_name"`
Anomalies []*LogAnomaly `json:"anomalies"`
Patterns []*LogPattern `json:"patterns"`
Statistics *LogStatistics `json:"statistics"`
Recommendations []string `json:"recommendations"`
AnalyzedAt time.Time `json:"analyzed_at"`
}
// LogAnomaly represents detected log anomaly
type LogAnomaly struct {
Type AnomalyType `json:"type"`
Severity AlertSeverity `json:"severity"`
Description string `json:"description"`
Entries []*LogEntry `json:"entries"`
Confidence float64 `json:"confidence"`
DetectedAt time.Time `json:"detected_at"`
}
// AnomalyType represents different types of log anomalies
type AnomalyType string
const (
AnomalyTypeErrorSpike AnomalyType = "error_spike"
AnomalyTypeUnusualPattern AnomalyType = "unusual_pattern"
AnomalyTypeMissingLogs AnomalyType = "missing_logs"
AnomalyTypeRateChange AnomalyType = "rate_change"
AnomalyTypeNewError AnomalyType = "new_error"
)
// LogPattern represents detected log pattern
type LogPattern struct {
Pattern string `json:"pattern"`
Frequency int `json:"frequency"`
LastSeen time.Time `json:"last_seen"`
Sources []string `json:"sources"`
Confidence float64 `json:"confidence"`
}
// LogStatistics provides log statistics
type LogStatistics struct {
TotalEntries int64 `json:"total_entries"`
EntriesByLevel map[LogLevel]int64 `json:"entries_by_level"`
EntriesBySource map[string]int64 `json:"entries_by_source"`
ErrorRate float64 `json:"error_rate"`
AverageRate float64 `json:"average_rate"`
TimeRange [2]time.Time `json:"time_range"`
}
// LogRetentionPolicy defines log retention rules
type LogRetentionPolicy struct {
RetentionPeriod time.Duration `json:"retention_period"`
MaxEntries int64 `json:"max_entries"`
CompressionAge time.Duration `json:"compression_age"`
ArchiveAge time.Duration `json:"archive_age"`
Rules []*RetentionRule `json:"rules"`
}
// RetentionRule defines specific retention rules
type RetentionRule struct {
Name string `json:"name"`
Condition string `json:"condition"` // Query expression
Retention time.Duration `json:"retention"`
Action RetentionAction `json:"action"`
}
// RetentionAction represents retention actions
type RetentionAction string
const (
RetentionActionDelete RetentionAction = "delete"
RetentionActionArchive RetentionAction = "archive"
RetentionActionCompress RetentionAction = "compress"
)
// TraceManager manages distributed tracing
type TraceManager struct {
mu sync.RWMutex
traces map[string]*Trace
spans map[string]*Span
samplers []TraceSampler
exporters []TraceExporter
running bool
}
// Trace represents a distributed trace
type Trace struct {
TraceID string `json:"trace_id"`
Spans []*Span `json:"spans"`
Duration time.Duration `json:"duration"`
StartTime time.Time `json:"start_time"`
EndTime time.Time `json:"end_time"`
Status TraceStatus `json:"status"`
Tags map[string]string `json:"tags"`
Operations []string `json:"operations"`
}
// Span represents a single span in a trace
type Span struct {
SpanID string `json:"span_id"`
TraceID string `json:"trace_id"`
ParentID string `json:"parent_id,omitempty"`
Operation string `json:"operation"`
Service string `json:"service"`
StartTime time.Time `json:"start_time"`
EndTime time.Time `json:"end_time"`
Duration time.Duration `json:"duration"`
Status SpanStatus `json:"status"`
Tags map[string]string `json:"tags"`
Logs []*SpanLog `json:"logs"`
}
// TraceStatus represents the status of a trace
type TraceStatus string
const (
TraceStatusOK TraceStatus = "ok"
TraceStatusError TraceStatus = "error"
TraceStatusTimeout TraceStatus = "timeout"
)
// SpanStatus represents the status of a span
type SpanStatus string
const (
SpanStatusOK SpanStatus = "ok"
SpanStatusError SpanStatus = "error"
)
// SpanLog represents a log entry within a span
type SpanLog struct {
Timestamp time.Time `json:"timestamp"`
Fields map[string]interface{} `json:"fields"`
}
// TraceSampler determines which traces to sample
type TraceSampler interface {
Sample(traceID string, operation string) bool
Name() string
}
// TraceExporter exports traces to external systems
type TraceExporter interface {
Export(ctx context.Context, traces []*Trace) error
Name() string
}
// ErrorEvent represents a system error event
type ErrorEvent struct {
ID string `json:"id"`
Timestamp time.Time `json:"timestamp"`
Level LogLevel `json:"level"`
Component string `json:"component"`
Message string `json:"message"`
Error string `json:"error"`
Context map[string]interface{} `json:"context"`
TraceID string `json:"trace_id,omitempty"`
SpanID string `json:"span_id,omitempty"`
Count int `json:"count"`
FirstSeen time.Time `json:"first_seen"`
LastSeen time.Time `json:"last_seen"`
}
// NewMonitoringSystem creates a comprehensive monitoring system
func NewMonitoringSystem(config *config.Config) (*MonitoringSystem, error) {
if config == nil {
return nil, fmt.Errorf("config is required")
}
ms := &MonitoringSystem{
config: config,
monitoringPort: 8080,
updateInterval: 30 * time.Second,
retentionPeriod: 24 * time.Hour,
}
// Initialize components
if err := ms.initializeComponents(); err != nil {
return nil, fmt.Errorf("failed to initialize monitoring components: %w", err)
}
return ms, nil
}
// initializeComponents initializes all monitoring components
func (ms *MonitoringSystem) initializeComponents() error {
// Initialize metrics collector
ms.metrics = &MetricsCollector{
timeSeries: make(map[string]*TimeSeries),
counters: make(map[string]*Counter),
gauges: make(map[string]*Gauge),
histograms: make(map[string]*Histogram),
customMetrics: make(map[string]*CustomMetric),
aggregatedStats: &AggregatedStatistics{
LastUpdated: time.Now(),
},
exporters: []MetricsExporter{},
lastCollection: time.Now(),
}
// Initialize health check manager
ms.healthChecks = &HealthCheckManager{
healthChecks: make(map[string]*HealthCheck),
checkResults: make(map[string]*HealthCheckResult),
schedules: make(map[string]*HealthCheckSchedule),
running: false,
}
// Initialize alert manager
ms.alertManager = &AlertManager{
alertRules: make(map[string]*AlertRule),
activeAlerts: make(map[string]*Alert),
alertHistory: []*Alert{},
notifiers: []AlertNotifier{},
silences: make(map[string]*AlertSilence),
running: false,
}
// Initialize dashboard server
ms.dashboard = &DashboardServer{
dashboards: make(map[string]*Dashboard),
widgets: make(map[string]*Widget),
customPages: make(map[string]*CustomPage),
running: false,
port: ms.monitoringPort,
}
// Initialize log manager
ms.logManager = &LogManager{
logSources: make(map[string]*LogSource),
logEntries: []*LogEntry{},
logAnalyzers: []LogAnalyzer{},
retentionPolicy: &LogRetentionPolicy{
RetentionPeriod: 7 * 24 * time.Hour,
MaxEntries: 1000000,
CompressionAge: 24 * time.Hour,
ArchiveAge: 7 * 24 * time.Hour,
Rules: []*RetentionRule{},
},
running: false,
}
// Initialize trace manager
ms.traceManager = &TraceManager{
traces: make(map[string]*Trace),
spans: make(map[string]*Span),
samplers: []TraceSampler{},
exporters: []TraceExporter{},
running: false,
}
// Register default health checks
ms.registerDefaultHealthChecks()
// Register default alert rules
ms.registerDefaultAlertRules()
// Create default dashboards
ms.createDefaultDashboards()
return nil
}
// Start starts the monitoring system
func (ms *MonitoringSystem) Start(ctx context.Context) error {
ms.mu.Lock()
if ms.running {
ms.mu.Unlock()
return fmt.Errorf("monitoring system already running")
}
ms.running = true
ms.mu.Unlock()
// Start metrics collection
go ms.metricsCollectionWorker(ctx)
// Start health check manager
ms.healthChecks.running = true
go ms.healthCheckWorker(ctx)
// Start alert manager
ms.alertManager.running = true
go ms.alertWorker(ctx)
// Start log manager
ms.logManager.running = true
go ms.logWorker(ctx)
// Start trace manager
ms.traceManager.running = true
go ms.traceWorker(ctx)
// Start dashboard server
if err := ms.startDashboardServer(); err != nil {
return fmt.Errorf("failed to start dashboard server: %w", err)
}
return nil
}
// Stop stops the monitoring system
func (ms *MonitoringSystem) Stop() error {
ms.mu.Lock()
defer ms.mu.Unlock()
ms.running = false
ms.healthChecks.running = false
ms.alertManager.running = false
ms.logManager.running = false
ms.traceManager.running = false
// Stop dashboard server
if ms.dashboard.server != nil {
return ms.dashboard.server.Shutdown(context.Background())
}
return nil
}
// GetMetrics returns current system metrics
func (ms *MonitoringSystem) GetMetrics() (*AggregatedStatistics, error) {
ms.metrics.mu.RLock()
defer ms.metrics.mu.RUnlock()
return ms.metrics.aggregatedStats, nil
}
// GetHealthStatus returns current health status
func (ms *MonitoringSystem) GetHealthStatus() (map[string]*HealthCheckResult, error) {
ms.healthChecks.mu.RLock()
defer ms.healthChecks.mu.RUnlock()
results := make(map[string]*HealthCheckResult)
for name, result := range ms.healthChecks.checkResults {
results[name] = result
}
return results, nil
}
// GetActiveAlerts returns currently active alerts
func (ms *MonitoringSystem) GetActiveAlerts() ([]*Alert, error) {
ms.alertManager.mu.RLock()
defer ms.alertManager.mu.RUnlock()
alerts := make([]*Alert, 0, len(ms.alertManager.activeAlerts))
for _, alert := range ms.alertManager.activeAlerts {
alerts = append(alerts, alert)
}
// Sort by severity and timestamp
sort.Slice(alerts, func(i, j int) bool {
if alerts[i].Severity != alerts[j].Severity {
return ms.severityWeight(alerts[i].Severity) > ms.severityWeight(alerts[j].Severity)
}
return alerts[i].StartsAt.After(alerts[j].StartsAt)
})
return alerts, nil
}
// RecordMetric records a custom metric
func (ms *MonitoringSystem) RecordMetric(name string, value float64, labels map[string]string) error {
ms.metrics.mu.Lock()
defer ms.metrics.mu.Unlock()
// Create or update gauge
if gauge, exists := ms.metrics.gauges[name]; exists {
gauge.Value = value
gauge.LastUpdated = time.Now()
if labels != nil {
gauge.Labels = labels
}
} else {
ms.metrics.gauges[name] = &Gauge{
Name: name,
Value: value,
Min: value,
Max: value,
Average: value,
Labels: labels,
LastUpdated: time.Now(),
}
}
return nil
}
// Background workers (placeholder implementations)
func (ms *MonitoringSystem) metricsCollectionWorker(ctx context.Context) {
ticker := time.NewTicker(ms.updateInterval)
defer ticker.Stop()
for {
select {
case <-ctx.Done():
return
case <-ticker.C:
if ms.running {
ms.collectSystemMetrics()
}
}
}
}
func (ms *MonitoringSystem) healthCheckWorker(ctx context.Context) {
ticker := time.NewTicker(30 * time.Second)
defer ticker.Stop()
for {
select {
case <-ctx.Done():
return
case <-ticker.C:
if ms.healthChecks.running {
ms.runHealthChecks(ctx)
}
}
}
}
func (ms *MonitoringSystem) alertWorker(ctx context.Context) {
ticker := time.NewTicker(10 * time.Second)
defer ticker.Stop()
for {
select {
case <-ctx.Done():
return
case <-ticker.C:
if ms.alertManager.running {
ms.evaluateAlertRules(ctx)
}
}
}
}
func (ms *MonitoringSystem) logWorker(ctx context.Context) {
ticker := time.NewTicker(60 * time.Second)
defer ticker.Stop()
for {
select {
case <-ctx.Done():
return
case <-ticker.C:
if ms.logManager.running {
ms.analyzeLogs(ctx)
}
}
}
}
func (ms *MonitoringSystem) traceWorker(ctx context.Context) {
ticker := time.NewTicker(30 * time.Second)
defer ticker.Stop()
for {
select {
case <-ctx.Done():
return
case <-ticker.C:
if ms.traceManager.running {
ms.processTraces(ctx)
}
}
}
}
func (ms *MonitoringSystem) startDashboardServer() error {
mux := http.NewServeMux()
// API endpoints
mux.HandleFunc("/api/metrics", ms.handleMetrics)
mux.HandleFunc("/api/health", ms.handleHealth)
mux.HandleFunc("/api/alerts", ms.handleAlerts)
mux.HandleFunc("/api/dashboards", ms.handleDashboards)
// Dashboard UI (placeholder)
mux.HandleFunc("/", ms.handleDashboard)
ms.dashboard.server = &http.Server{
Addr: fmt.Sprintf(":%d", ms.dashboard.port),
Handler: mux,
}
go func() {
if err := ms.dashboard.server.ListenAndServe(); err != http.ErrServerClosed {
// Log error
}
}()
ms.dashboard.running = true
return nil
}
// HTTP handlers (placeholder implementations)
func (ms *MonitoringSystem) handleMetrics(w http.ResponseWriter, r *http.Request) {
metrics, err := ms.GetMetrics()
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(metrics)
}
func (ms *MonitoringSystem) handleHealth(w http.ResponseWriter, r *http.Request) {
health, err := ms.GetHealthStatus()
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(health)
}
func (ms *MonitoringSystem) handleAlerts(w http.ResponseWriter, r *http.Request) {
alerts, err := ms.GetActiveAlerts()
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(alerts)
}
func (ms *MonitoringSystem) handleDashboards(w http.ResponseWriter, r *http.Request) {
ms.dashboard.mu.RLock()
dashboards := make([]*Dashboard, 0, len(ms.dashboard.dashboards))
for _, dashboard := range ms.dashboard.dashboards {
dashboards = append(dashboards, dashboard)
}
ms.dashboard.mu.RUnlock()
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(dashboards)
}
func (ms *MonitoringSystem) handleDashboard(w http.ResponseWriter, r *http.Request) {
// Placeholder dashboard HTML
html := `
BZZZ SLURP Monitoring
BZZZ SLURP Distributed Context Monitoring
Monitoring dashboard placeholder
`
w.Header().Set("Content-Type", "text/html")
w.Write([]byte(html))
}
// Helper methods (placeholder implementations)
func (ms *MonitoringSystem) collectSystemMetrics() {
// Collect system metrics
ms.metrics.aggregatedStats.SystemOverview = &SystemOverview{
TotalNodes: 1, // Placeholder
HealthyNodes: 1,
TotalContexts: 0,
DistributedContexts: 0,
ReplicationFactor: 3.0,
SystemUptime: time.Since(time.Now()),
ClusterVersion: "1.0.0",
LastRestart: time.Now(),
}
ms.metrics.aggregatedStats.LastUpdated = time.Now()
}
func (ms *MonitoringSystem) runHealthChecks(ctx context.Context) {
// Run scheduled health checks
}
func (ms *MonitoringSystem) evaluateAlertRules(ctx context.Context) {
// Evaluate alert rules against current metrics
}
func (ms *MonitoringSystem) analyzeLogs(ctx context.Context) {
// Analyze logs for patterns and anomalies
}
func (ms *MonitoringSystem) processTraces(ctx context.Context) {
// Process distributed traces
}
func (ms *MonitoringSystem) registerDefaultHealthChecks() {
// Register default health checks
}
func (ms *MonitoringSystem) registerDefaultAlertRules() {
// Register default alert rules
}
func (ms *MonitoringSystem) createDefaultDashboards() {
// Create default dashboards
}
func (ms *MonitoringSystem) severityWeight(severity AlertSeverity) int {
switch severity {
case SeverityCritical:
return 4
case SeverityError:
return 3
case SeverityWarning:
return 2
case SeverityInfo:
return 1
default:
return 0
}
}