592 lines
16 KiB
Go
592 lines
16 KiB
Go
package storage
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import (
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"context"
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"fmt"
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"log"
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"math/rand"
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"strings"
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"time"
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influxdb2 "github.com/influxdata/influxdb-client-go"
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"github.com/monitor/backend/config"
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)
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// formatTags 将标签映射格式化为InfluxDB行协议格式
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func formatTags(tags map[string]string) string {
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var tagList []string
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for k, v := range tags {
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// 跳过空值的标签，避免InfluxDB解析错误
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if v == "" {
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continue
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}
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tagList = append(tagList, fmt.Sprintf("%s=%s", k, escapeTagValue(v)))
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}
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return strings.Join(tagList, ",")
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}
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// escapeTagValue 转义标签值中的特殊字符
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func escapeTagValue(value string) string {
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// 替换逗号、空格和等号为转义后的形式
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escaped := strings.ReplaceAll(value, ",", "\\,")
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escaped = strings.ReplaceAll(escaped, " ", "\\ ")
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escaped = strings.ReplaceAll(escaped, "=", "\\=")
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return escaped
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}
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// MetricPoint 自定义监控指标点
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type MetricPoint struct {
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Time time.Time `json:"time"`
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Value float64 `json:"value"`
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Tags map[string]string `json:"tags,omitempty"`
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}
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type Storage struct {
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client influxdb2.Client
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org string
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bucket string
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}
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// NewStorage 创建新的存储实例
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func NewStorage(cfg *config.Config) *Storage {
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var client influxdb2.Client
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// InfluxDB 2.x版本使用Token认证
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// 检查Token是否为空
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if cfg.InfluxDB.Token != "" {
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// 使用Token认证（适用于InfluxDB 2.x）
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client = influxdb2.NewClient(cfg.InfluxDB.URL, cfg.InfluxDB.Token)
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} else {
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// Token为空，尝试使用默认客户端
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// 注意：InfluxDB 2.x需要有效的Token才能写入数据
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log.Printf("Warning: InfluxDB Token is empty, write operations may fail")
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client = influxdb2.NewClient(cfg.InfluxDB.URL, "")
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}
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// 配置InfluxDB客户端选项
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options := client.Options()
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// 禁用InfluxDB客户端的调试日志
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options.SetLogLevel(0)
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return &Storage{
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client: client,
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org: cfg.InfluxDB.Org,
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bucket: cfg.InfluxDB.Bucket,
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}
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}
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// Close 关闭存储连接
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func (s *Storage) Close() {
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s.client.Close()
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}
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// 写入数据到InfluxDB，带重试机制
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func (s *Storage) writeData(ctx context.Context, measurement string, tags map[string]string, fields map[string]interface{}, deviceID, metricType string) error {
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// 重试配置 - 减少重试次数和延迟，确保在超时时间内完成
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maxRetries := 2
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baseDelay := 200 * time.Millisecond
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for i := 0; i <= maxRetries; i++ {
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// 如果上下文已取消，直接返回
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if ctx.Err() != nil {
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return ctx.Err()
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}
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// 写入数据点
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writeAPI := s.client.WriteAPIBlocking(s.org, s.bucket)
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// 构建行协议字符串
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var fieldList []string
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for k, v := range fields {
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var fieldStr string
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// 根据字段类型格式化
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switch v := v.(type) {
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case string:
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fieldStr = fmt.Sprintf("%s=%q", k, v)
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case float64, int, int32, int64:
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fieldStr = fmt.Sprintf("%s=%v", k, v)
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case bool:
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fieldStr = fmt.Sprintf("%s=%t", k, v)
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default:
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// 转换为字符串
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fieldStr = fmt.Sprintf("%s=%q", k, fmt.Sprintf("%v", v))
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}
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fieldList = append(fieldList, fieldStr)
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}
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line := fmt.Sprintf("%s,%s %s %d", measurement, formatTags(tags), strings.Join(fieldList, ","), time.Now().UnixNano())
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err := writeAPI.WriteRecord(ctx, line)
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if err == nil {
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// 写入成功，直接返回
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return nil
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}
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// 如果是最后一次重试，返回错误
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if i == maxRetries {
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return err
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}
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// 计算重试延迟（指数退避）
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delay := baseDelay*time.Duration(1<<i) + time.Duration(rand.Intn(50))*time.Millisecond
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log.Printf("Warning: InfluxDB write failed for device %s, metric %s, retrying in %v... (Attempt %d/%d)\nError: %v", deviceID, metricType, delay, i+1, maxRetries, err)
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// 等待重试
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select {
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case <-time.After(delay):
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// 继续重试
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case <-ctx.Done():
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// 上下文取消，返回错误
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return ctx.Err()
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}
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}
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return nil
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}
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// WriteMetric 写入监控指标，带重试机制
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func (s *Storage) WriteMetric(ctx context.Context, deviceID, metricType string, value float64, tags map[string]string) error {
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// 创建标签映射，合并原有标签和新标签
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allTags := make(map[string]string)
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// 复制原有标签
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for k, v := range tags {
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allTags[k] = v
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}
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// 添加设备ID标签
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allTags["device_id"] = deviceID
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// 添加指标类型标签
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allTags["type"] = metricType
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// 创建字段映射
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fields := map[string]interface{}{
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"value": value,
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}
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// 使用新的writeData方法
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return s.writeData(ctx, "metrics", allTags, fields, deviceID, metricType)
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}
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// WriteProcessMetric 写入进程指标
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func (s *Storage) WriteProcessMetric(ctx context.Context, deviceID string, processName, username string, pid int32, cpu, memory float64, path, cmdline string, ports []int, tags map[string]string) error {
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// 创建标签映射，合并原有标签和新标签
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allTags := make(map[string]string)
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// 复制原有标签
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for k, v := range tags {
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allTags[k] = v
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}
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// 添加设备ID标签
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allTags["device_id"] = deviceID
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// 添加进程相关标签
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allTags["process_name"] = processName
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allTags["username"] = username
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allTags["pid"] = fmt.Sprintf("%d", pid)
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// 处理端口标签，只取前5个端口
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portsStr := make([]string, 0, len(ports))
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for i, port := range ports {
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if i >= 5 {
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break
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}
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portsStr = append(portsStr, fmt.Sprintf("%d", port))
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}
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allTags["ports"] = strings.Join(portsStr, ",")
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// 创建字段映射
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fields := map[string]interface{}{
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"cpu_usage": cpu,
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"memory_usage": memory,
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"path": path,
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"cmdline": cmdline,
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}
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// 使用新的writeData方法
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return s.writeData(ctx, "processes", allTags, fields, deviceID, "process")
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}
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// WriteDiskDetailMetric 写入磁盘详细信息
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func (s *Storage) WriteDiskDetailMetric(ctx context.Context, deviceID, diskDeviceID, status, diskType string, sizeGB float64, model, interfaceType, description string, tags map[string]string) error {
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// 创建标签映射，合并原有标签和新标签
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allTags := make(map[string]string)
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// 复制原有标签
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for k, v := range tags {
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allTags[k] = v
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}
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// 添加设备ID标签
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allTags["device_id"] = deviceID
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// 添加磁盘相关标签
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allTags["disk_id"] = diskDeviceID
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allTags["status"] = status
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allTags["type"] = diskType
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allTags["model"] = model
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allTags["interface_type"] = interfaceType
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// 创建字段映射
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fields := map[string]interface{}{
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"size_gb": sizeGB,
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"description": description,
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}
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// 使用新的writeData方法
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return s.writeData(ctx, "disk_details", allTags, fields, deviceID, "disk_detail")
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}
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// QueryMetrics 查询监控指标
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func (s *Storage) QueryMetrics(ctx context.Context, deviceID, metricType, startTime, endTime string) ([]MetricPoint, error) {
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queryAPI := s.client.QueryAPI(s.org)
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// 处理时间参数
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processedStartTime := startTime
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processedEndTime := endTime
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// 检查并修复时间格式，确保InfluxDB能正确识别
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// 对于相对时间（如-24h）或now()，直接使用
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// 对于绝对时间，确保格式正确
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if len(startTime) > 0 {
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// 检查是否是相对时间（以-开头或为now()）
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isRelativeTime := strings.HasPrefix(startTime, "-") || startTime == "now()"
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if !isRelativeTime {
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// 是绝对时间，尝试解析为time.Time类型
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t, err := time.Parse(time.RFC3339, startTime)
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if err != nil {
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// 尝试其他常见格式
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t, err = time.Parse("2006-01-02T15:04", startTime)
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if err != nil {
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// 尝试YYYY-MM-DD HH:MM格式
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t, err = time.Parse("2006-01-02 15:04", startTime)
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}
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}
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if err == nil {
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// 解析成功，使用RFC3339格式（InfluxDB可以识别）
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processedStartTime = t.Format(time.RFC3339)
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}
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}
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}
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if len(endTime) > 0 {
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// 检查是否是相对时间（以-开头或为now()）
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isRelativeTime := strings.HasPrefix(endTime, "-") || endTime == "now()"
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if !isRelativeTime {
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// 是绝对时间，尝试解析为time.Time类型
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t, err := time.Parse(time.RFC3339, endTime)
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if err != nil {
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// 尝试其他常见格式
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t, err = time.Parse("2006-01-02T15:04", endTime)
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if err != nil {
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// 尝试YYYY-MM-DD HH:MM格式
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t, err = time.Parse("2006-01-02 15:04", endTime)
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}
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}
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if err == nil {
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// 解析成功，使用RFC3339格式（InfluxDB可以识别）
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processedEndTime = t.Format(time.RFC3339)
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}
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}
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}
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// 构建查询语句，包含标签信息和字段过滤
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query := `from(bucket: "` + s.bucket + `")
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|> range(start: ` + processedStartTime + `, stop: ` + processedEndTime + `)
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|> filter(fn: (r) => r["_measurement"] == "metrics")
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|> filter(fn: (r) => r["_field"] == "value")`
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// 只有当deviceID非空时才添加device_id过滤
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if deviceID != "" {
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query += `
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|> filter(fn: (r) => r["device_id"] == "` + deviceID + `")`
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}
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query += `
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|> filter(fn: (r) => r["type"] == "` + metricType + `")
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|> sort(columns: ["_time"])`
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// 执行查询
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result, err := queryAPI.Query(ctx, query)
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if err != nil {
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return nil, err
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}
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defer result.Close()
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var points []MetricPoint
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// 处理查询结果
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for result.Next() {
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// 表结构变化也需要处理数据
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// 获取记录
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record := result.Record()
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// 获取所有标签
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tags := make(map[string]string)
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for k, v := range record.Values() {
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// 跳过内置字段，只保留自定义标签
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if k != "_time" && k != "_value" && k != "_field" && k != "_measurement" {
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if strValue, ok := v.(string); ok {
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tags[k] = strValue
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}
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}
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}
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// 转换为自定义MetricPoint
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point := MetricPoint{
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Time: record.Time(),
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Value: record.Value().(float64),
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Tags: tags,
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}
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points = append(points, point)
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}
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if result.Err() != nil {
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return nil, result.Err()
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}
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return points, nil
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}
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// DeviceInfo 设备信息
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func (s *Storage) QueryAllDevices(ctx context.Context) ([]map[string]string, error) {
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queryAPI := s.client.QueryAPI(s.org)
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// 构建查询语句，获取所有唯一的device_id和对应的agent_name
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query := `from(bucket: "` + s.bucket + `")
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|> range(start: -30d)
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|> filter(fn: (r) => r["_measurement"] == "metrics")
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|> group(columns: ["device_id", "agent_name"])
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|> last()
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|> keep(columns: ["device_id", "agent_name"])`
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// 执行查询
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queryResult, err := queryAPI.Query(ctx, query)
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if err != nil {
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return []map[string]string{{"id": "default", "name": "Default"}}, nil
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}
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defer queryResult.Close()
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deviceMap := make(map[string]string)
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// 处理查询结果
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for queryResult.Next() {
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if queryResult.TableChanged() {
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// 表结构变化，跳过
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continue
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}
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// 获取记录
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record := queryResult.Record()
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deviceID := record.ValueByKey("device_id").(string)
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agentName := ""
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if name, ok := record.ValueByKey("agent_name").(string); ok {
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agentName = name
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}
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if agentName == "" {
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agentName = deviceID
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}
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deviceMap[deviceID] = agentName
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}
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if queryResult.Err() != nil {
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return []map[string]string{{"id": "default", "name": "Default"}}, nil
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}
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// 转换为切片
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deviceList := make([]map[string]string, 0, len(deviceMap))
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for deviceID, agentName := range deviceMap {
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deviceList = append(deviceList, map[string]string{
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"id": deviceID,
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"name": agentName,
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})
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}
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// 如果没有设备，返回默认设备
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if len(deviceList) == 0 {
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return []map[string]string{{"id": "default", "name": "Default"}}, nil
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}
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return deviceList, nil
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}
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// DeviceStatus 设备状态
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func (s *Storage) QueryDeviceStatus(ctx context.Context, deviceID string) (string, map[string]float64, error) {
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queryAPI := s.client.QueryAPI(s.org)
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// 构建查询语句，获取设备最新的指标数据和agent名称
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query := `from(bucket: "` + s.bucket + `")
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|> range(start: -1h)
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|> filter(fn: (r) => r["_measurement"] == "metrics")
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|> filter(fn: (r) => r["device_id"] == "` + deviceID + `")
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|> last()`
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// 执行查询
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queryResult, err := queryAPI.Query(ctx, query)
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if err != nil {
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return "", nil, err
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}
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defer queryResult.Close()
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status := make(map[string]float64)
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agentName := deviceID
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hasData := false
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// 处理查询结果
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for queryResult.Next() {
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if queryResult.TableChanged() {
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// 表结构变化，跳过
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continue
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}
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hasData = true
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// 获取记录
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record := queryResult.Record()
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metricType := record.ValueByKey("type").(string)
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value := record.Value().(float64)
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status[metricType] = value
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// 获取agent名称
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if name, ok := record.ValueByKey("agent_name").(string); ok && name != "" {
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agentName = name
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}
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}
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if queryResult.Err() != nil {
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return "", nil, queryResult.Err()
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}
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if !hasData {
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// 如果没有数据，返回空状态
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return "", map[string]float64{}, nil
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}
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return agentName, status, nil
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}
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// QueryProcessMetrics 查询进程指标
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func (s *Storage) QueryProcessMetrics(ctx context.Context, deviceID string, startTime, endTime string) ([]map[string]interface{}, error) {
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queryAPI := s.client.QueryAPI(s.org)
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// 构建查询语句
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query := `from(bucket: "` + s.bucket + `")
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|> range(start: ` + startTime + `, stop: ` + endTime + `)
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|> filter(fn: (r) => r["_measurement"] == "processes")`
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// 如果指定了设备ID，添加设备ID过滤
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if deviceID != "" {
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query += `
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|> filter(fn: (r) => r["device_id"] == "` + deviceID + `")`
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}
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// 获取最新的进程数据
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query += `
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|> last()`
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// 执行查询
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queryResult, err := queryAPI.Query(ctx, query)
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if err != nil {
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return nil, err
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}
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defer queryResult.Close()
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// 存储进程数据
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processes := make([]map[string]interface{}, 0)
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// 处理查询结果
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||
for queryResult.Next() {
|
||
if queryResult.TableChanged() {
|
||
// 表结构变化，跳过
|
||
continue
|
||
}
|
||
|
||
// 获取记录
|
||
record := queryResult.Record()
|
||
|
||
// 构建进程数据
|
||
processData := map[string]interface{}{
|
||
"time": record.Time(),
|
||
"device_id": record.ValueByKey("device_id"),
|
||
"process_name": record.ValueByKey("process_name"),
|
||
"username": record.ValueByKey("username"),
|
||
"pid": record.ValueByKey("pid"),
|
||
"cpu_usage": record.ValueByKey("cpu_usage"),
|
||
"memory_usage": record.ValueByKey("memory_usage"),
|
||
"path": record.ValueByKey("path"),
|
||
"cmdline": record.ValueByKey("cmdline"),
|
||
"ports": record.ValueByKey("ports"),
|
||
"agent_name": record.ValueByKey("agent_name"),
|
||
}
|
||
|
||
// 添加到进程列表
|
||
processes = append(processes, processData)
|
||
}
|
||
|
||
if queryResult.Err() != nil {
|
||
return nil, queryResult.Err()
|
||
}
|
||
|
||
return processes, nil
|
||
}
|
||
|
||
// QueryDiskDetails 查询磁盘详细信息
|
||
func (s *Storage) QueryDiskDetails(ctx context.Context, deviceID string, startTime, endTime string) ([]map[string]interface{}, error) {
|
||
queryAPI := s.client.QueryAPI(s.org)
|
||
|
||
// 构建查询语句
|
||
query := `from(bucket: "` + s.bucket + `")
|
||
|> range(start: ` + startTime + `, stop: ` + endTime + `)
|
||
|> filter(fn: (r) => r["_measurement"] == "disk_details")`
|
||
|
||
// 如果指定了设备ID，添加设备ID过滤
|
||
if deviceID != "" {
|
||
query += `
|
||
|> filter(fn: (r) => r["device_id"] == "` + deviceID + `")`
|
||
}
|
||
|
||
// 获取最新的磁盘详细信息
|
||
query += `
|
||
|> last()`
|
||
|
||
// 执行查询
|
||
queryResult, err := queryAPI.Query(ctx, query)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
defer queryResult.Close()
|
||
|
||
// 存储磁盘详细信息
|
||
diskDetails := make([]map[string]interface{}, 0)
|
||
|
||
// 处理查询结果
|
||
for queryResult.Next() {
|
||
if queryResult.TableChanged() {
|
||
// 表结构变化，跳过
|
||
continue
|
||
}
|
||
|
||
// 获取记录
|
||
record := queryResult.Record()
|
||
|
||
// 构建磁盘详细信息
|
||
diskData := map[string]interface{}{
|
||
"time": record.Time(),
|
||
"device_id": record.ValueByKey("device_id"),
|
||
"disk_id": record.ValueByKey("disk_id"),
|
||
"status": record.ValueByKey("status"),
|
||
"type": record.ValueByKey("type"),
|
||
"size_gb": record.ValueByKey("size_gb"),
|
||
"model": record.ValueByKey("model"),
|
||
"interface_type": record.ValueByKey("interface_type"),
|
||
"description": record.ValueByKey("description"),
|
||
"agent_name": record.ValueByKey("agent_name"),
|
||
}
|
||
|
||
// 添加到磁盘详细信息列表
|
||
diskDetails = append(diskDetails, diskData)
|
||
}
|
||
|
||
if queryResult.Err() != nil {
|
||
return nil, queryResult.Err()
|
||
}
|
||
|
||
return diskDetails, nil
|
||
}
|