fetch_ml/internal/queue/task.go
Jeremie Fraeys 803677be57 feat: implement Go backend with comprehensive API and internal packages
- Add API server with WebSocket support and REST endpoints
- Implement authentication system with API keys and permissions
- Add task queue system with Redis backend and error handling
- Include storage layer with database migrations and schemas
- Add comprehensive logging, metrics, and telemetry
- Implement security middleware and network utilities
- Add experiment management and container orchestration
- Include configuration management with smart defaults
2025-12-04 16:53:53 -05:00

47 lines
1.8 KiB
Go

package queue
import (
"time"
"github.com/jfraeys/fetch_ml/internal/config"
)
// Task represents an ML experiment task
type Task struct {
ID string `json:"id"`
JobName string `json:"job_name"`
Args string `json:"args"`
Status string `json:"status"` // queued, running, completed, failed
Priority int64 `json:"priority"`
CreatedAt time.Time `json:"created_at"`
StartedAt *time.Time `json:"started_at,omitempty"`
EndedAt *time.Time `json:"ended_at,omitempty"`
WorkerID string `json:"worker_id,omitempty"`
Error string `json:"error,omitempty"`
Datasets []string `json:"datasets,omitempty"`
Metadata map[string]string `json:"metadata,omitempty"`
// User ownership and permissions
UserID string `json:"user_id"` // User who owns this task
Username string `json:"username"` // Username for display
CreatedBy string `json:"created_by"` // User who submitted the task
// Lease management for task resilience
LeaseExpiry *time.Time `json:"lease_expiry,omitempty"` // When task lease expires
LeasedBy string `json:"leased_by,omitempty"` // Worker ID holding lease
// Retry management
RetryCount int `json:"retry_count"` // Number of retry attempts made
MaxRetries int `json:"max_retries"` // Maximum retry limit (default 3)
LastError string `json:"last_error,omitempty"` // Last error encountered
NextRetry *time.Time `json:"next_retry,omitempty"` // When to retry next (exponential backoff)
}
// Redis key constants
var (
TaskQueueKey = config.RedisTaskQueueKey
TaskPrefix = config.RedisTaskPrefix
TaskStatusPrefix = config.RedisTaskStatusPrefix
WorkerHeartbeat = config.RedisWorkerHeartbeat
JobMetricsPrefix = config.RedisJobMetricsPrefix
)