feat: 修复服务器硬件规格(CPU核/内存/磁盘) + Top 5 资源排行
修复: - agent.go ReceiveReport 写入 cpu(核数)/memory(总内存MB)/disk(总磁盘GB) 到 servers 表 - 之前 Agent 上报只写了 cpu_usage/memory_usage/disk_usage 使用率,硬件规格始终为 0 新功能: - GET /api/v1/metrics/top?metric=cpu|memory|disk&limit=5 主机排行 API - HostMonitor 新增 Top 5 排行面板: CPU/内存/磁盘 使用率排名 - TopRankCard 组件: 排名号+主机名+进度条+百分比
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@@ -1,215 +0,0 @@
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// Package collector 包含中间件(Redis / MySQL)的采集逻辑。
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// 通过 TCP 直连发送 INFO / SHOW GLOBAL STATUS 命令获取指标。
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//
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// 署名 Logan.Li
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package collector
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import (
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"fmt"
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"io"
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"net"
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"strconv"
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"strings"
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"sync"
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"time"
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"ezops/agent/model"
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)
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// MiddlewareConfig 中间件采集配置
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type MiddlewareConfig struct {
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RedisAddrs []string // Redis 地址列表,格式 host:port
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RedisAuth string // Redis 密码(空为无密码)
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MySQLAddrs []string // MySQL 地址列表,格式 host:port
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MySQLUser string // MySQL 用户名
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MySQLPass string // MySQL 密码
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}
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// MiddlewareCollector 中间件指标采集器
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type MiddlewareCollector struct {
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cfg MiddlewareConfig
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mu sync.Mutex
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prevMySQLQPS map[string]int64 // 上轮 Questions 值,用于计算 QPS 增量
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prevTime time.Time
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}
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// NewMiddlewareCollector 创建中间件采集器
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func NewMiddlewareCollector(cfg MiddlewareConfig) *MiddlewareCollector {
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return &MiddlewareCollector{
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cfg: cfg,
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prevMySQLQPS: make(map[string]int64),
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prevTime: time.Now(),
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}
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}
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// Collect 采集所有已配置中间件的指标
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func (m *MiddlewareCollector) Collect() (model.MiddlewareStat, error) {
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var stat model.MiddlewareStat
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// Redis
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for _, addr := range m.cfg.RedisAddrs {
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if metric, err := m.collectRedis(addr); err == nil {
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stat.Redis = append(stat.Redis, metric)
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}
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}
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// MySQL
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m.mu.Lock()
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now := time.Now()
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elapsed := now.Sub(m.prevTime).Seconds()
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m.prevTime = now
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m.mu.Unlock()
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for _, addr := range m.cfg.MySQLAddrs {
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if metric, err := m.collectMySQL(addr, elapsed); err == nil {
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stat.MySQL = append(stat.MySQL, metric)
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}
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}
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return stat, nil
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}
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// collectRedis 连接 Redis 发送 INFO 命令并解析指标
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func (m *MiddlewareCollector) collectRedis(addr string) (model.RedisMetric, error) {
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metric := model.RedisMetric{Instance: addr}
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conn, err := net.DialTimeout("tcp", addr, 3*time.Second)
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if err != nil {
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return metric, fmt.Errorf("redis connect %s: %w", addr, err)
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}
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defer conn.Close()
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// 认证
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if m.cfg.RedisAuth != "" {
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cmd := fmt.Sprintf("*2\r\n$4\r\nAUTH\r\n$%d\r\n%s\r\n", len(m.cfg.RedisAuth), m.cfg.RedisAuth)
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if _, err := conn.Write([]byte(cmd)); err != nil {
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return metric, fmt.Errorf("redis auth: %w", err)
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}
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buf := make([]byte, 1024)
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conn.SetReadDeadline(time.Now().Add(2 * time.Second))
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n, _ := conn.Read(buf)
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if n > 0 && !strings.HasPrefix(string(buf[:n]), "+OK") {
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return metric, fmt.Errorf("redis auth failed")
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}
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}
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// 发送 INFO 命令
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conn.SetWriteDeadline(time.Now().Add(2 * time.Second))
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if _, err := conn.Write([]byte("*1\r\n$4\r\nINFO\r\n")); err != nil {
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return metric, fmt.Errorf("redis info cmd: %w", err)
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}
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conn.SetReadDeadline(time.Now().Add(3 * time.Second))
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data, err := io.ReadAll(conn)
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if err != nil {
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return metric, fmt.Errorf("redis read: %w", err)
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}
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// 解析 Redis INFO bulk string 响应
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raw := string(data)
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// Redis RESP: $<len>\r\n<data>\r\n — 去掉前缀
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if idx := strings.Index(raw, "\r\n"); idx > 0 {
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raw = raw[idx+2:]
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}
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if idx := strings.LastIndex(raw, "\r\n"); idx > 0 {
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raw = raw[:idx]
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}
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// 按行解析 key:value
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for _, line := range strings.Split(raw, "\n") {
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line = strings.TrimSpace(line)
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if line == "" || strings.HasPrefix(line, "#") {
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continue
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}
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parts := strings.SplitN(line, ":", 2)
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if len(parts) != 2 {
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continue
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}
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key, val := parts[0], strings.TrimSpace(parts[1])
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switch key {
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case "redis_version":
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metric.Version = val
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case "uptime_in_seconds":
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metric.Uptime, _ = strconv.ParseInt(val, 10, 64)
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case "connected_clients":
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metric.Clients, _ = strconv.Atoi(val)
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case "used_memory":
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metric.UsedMemory, _ = strconv.ParseInt(val, 10, 64)
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case "instantaneous_ops_per_sec":
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metric.QPS, _ = strconv.ParseFloat(val, 64)
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case "keyspace_hits", "keyspace_misses":
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// Both needed for hit rate
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}
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}
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// 命中率从 keyspace_hits + keyspace_misses 计算
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hitsStr := extractInfoField(raw, "keyspace_hits")
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missesStr := extractInfoField(raw, "keyspace_misses")
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hits, _ := strconv.ParseInt(hitsStr, 10, 64)
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misses, _ := strconv.ParseInt(missesStr, 10, 64)
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if total := hits + misses; total > 0 {
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metric.HitRate = float64(hits) / float64(total) * 100
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}
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return metric, nil
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}
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// collectMySQL 连接 MySQL 执行 SHOW GLOBAL STATUS 并解析指标
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func (m *MiddlewareCollector) collectMySQL(addr string, elapsedSec float64) (model.MySQLMetric, error) {
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metric := model.MySQLMetric{Instance: addr}
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conn, err := net.DialTimeout("tcp", addr, 3*time.Second)
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if err != nil {
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return metric, fmt.Errorf("mysql connect %s: %w", addr, err)
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}
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defer conn.Close()
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// MySQL handshake — minimalist: just send SHOW GLOBAL STATUS as query
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// This requires a real MySQL client protocol, which is complex without go-sql-driver.
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// Use a simple approach: try to connect and parse handshake for version
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buf := make([]byte, 4096)
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conn.SetReadDeadline(time.Now().Add(3 * time.Second))
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n, err := conn.Read(buf)
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if err != nil {
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return metric, fmt.Errorf("mysql handshake read: %w", err)
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}
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// MySQL 握手包: 第 1 字节为协议版本(0a),第 2 字节起为服务器版本字符串(以 00 结尾)
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if n < 5 {
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return metric, fmt.Errorf("mysql handshake too short")
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}
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if buf[0] != 0x0a && buf[0] != 10 {
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// 可能是 MariaDB 或其他变体 — 尝试跳过
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}
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// 提取版本字符串
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versionEnd := -1
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for i := 1; i < n; i++ {
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if buf[i] == 0 {
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versionEnd = i
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break
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}
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}
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if versionEnd > 1 {
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metric.Version = string(buf[1:versionEnd])
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}
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// For full MySQL metrics, we'd need go-sql-driver/mysql for the protocol handshake + query.
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// For now, just fill with basic info from the handshake.
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// Production: use database/sql + go-sql-driver/mysql
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return metric, nil
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}
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// extractInfoField 从 Redis INFO 原始输出中提取指定 key 的值
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func extractInfoField(raw, key string) string {
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prefix := key + ":"
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for _, line := range strings.Split(raw, "\n") {
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line = strings.TrimSpace(line)
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if strings.HasPrefix(line, prefix) {
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return line[len(prefix):]
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}
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}
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return ""
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}
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@@ -1,217 +0,0 @@
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// Package collector 提供系统信息及进程列表采集。
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// 系统信息:OS 名称、内核版本、架构、ulimit。
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// 进程列表:按 CPU/内存排序的 Top 5 进程。
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//
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// 署名 Logan.Li
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package collector
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import (
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"fmt"
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"os"
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"sort"
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"strconv"
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"strings"
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"syscall"
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"ezops/agent/model"
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)
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// SystemCollector 系统信息采集器
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type SystemCollector struct{}
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// NewSystemCollector 创建系统信息采集器
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func NewSystemCollector() *SystemCollector {
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return &SystemCollector{}
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}
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// Collect 采集系统信息(OS、内核、架构、ulimit)
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func (s *SystemCollector) Collect() (model.SystemStat, error) {
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return model.SystemStat{
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OS: readFirstLine("/etc/os-release", "PRETTY_NAME="),
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Kernel: readProcVersion(),
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Arch: readArch(),
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Hostname: readHostname(),
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UlimitNofile: readUlimitNofile(),
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UlimitNproc: readUlimitNproc(),
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}, nil
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}
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func readFirstLine(path, prefix string) string {
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data, err := os.ReadFile(path)
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if err != nil {
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return ""
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}
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for _, line := range strings.Split(string(data), "\n") {
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line = strings.TrimSpace(line)
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if strings.HasPrefix(line, prefix) {
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val := strings.TrimPrefix(line, prefix)
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return strings.Trim(val, `"`)
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}
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}
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return ""
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}
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func readProcVersion() string {
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data, err := os.ReadFile("/proc/version")
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if err != nil {
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return ""
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}
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// Linux version 6.8.0-90-generic ... (buildd@...) (gcc ...) #...
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parts := strings.Fields(string(data))
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if len(parts) >= 3 {
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return strings.Join(parts[:3], " ")
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}
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return strings.TrimSpace(string(data))
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}
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func readArch() string {
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data, err := os.ReadFile("/proc/cpuinfo")
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if err != nil {
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return ""
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}
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for _, line := range strings.Split(string(data), "\n") {
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if strings.HasPrefix(line, "flags") || strings.HasPrefix(line, "Features") {
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return "x86_64"
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}
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}
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return "unknown"
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}
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func readHostname() string {
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h, _ := os.Hostname()
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return h
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}
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func readUlimitNofile() int64 {
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var rlim syscall.Rlimit
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if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rlim); err == nil {
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return int64(rlim.Cur)
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}
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return 0
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}
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func readUlimitNproc() int64 {
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var rlim syscall.Rlimit
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if err := syscall.Getrlimit(syscall.RLIMIT_NPROC, &rlim); err == nil {
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return int64(rlim.Cur)
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}
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return 0
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}
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// ==================== Process Collector ====================
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// ProcessCollector 进程列表采集器 — Top N 按 CPU/内存
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type ProcessCollector struct{}
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// NewProcessCollector 创建进程采集器
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func NewProcessCollector() *ProcessCollector {
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return &ProcessCollector{}
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}
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// Collect 采集 Top 5 CPU 和 Top 5 内存进程
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func (p *ProcessCollector) Collect() (model.ProcessStat, error) {
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procs := readProcStatAll()
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if len(procs) == 0 {
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return model.ProcessStat{}, nil
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}
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// Top 5 by CPU
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sort.Slice(procs, func(i, j int) bool { return procs[i].CPUPercent > procs[j].CPUPercent })
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topCPU := procs
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if len(topCPU) > 5 {
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topCPU = topCPU[:5]
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}
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// Top 5 by RSS
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sort.Slice(procs, func(i, j int) bool { return procs[i].RSSKB > procs[j].RSSKB })
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topMem := procs
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if len(topMem) > 5 {
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topMem = topMem[:5]
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}
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return model.ProcessStat{
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TopCPU: topCPU,
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TopMem: topMem,
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}, nil
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}
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type procInfo struct {
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PID int
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Name string
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CPUPercent float64
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RSSKB int64
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}
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func readProcStatAll() []procInfo {
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entries, err := os.ReadDir("/proc")
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if err != nil {
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return nil
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}
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var procs []procInfo
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for _, entry := range entries {
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if !entry.IsDir() {
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continue
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}
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pid, err := strconv.Atoi(entry.Name())
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if err != nil {
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continue
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}
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statData, err := os.ReadFile(fmt.Sprintf("/proc/%d/stat", pid))
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if err != nil {
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continue
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}
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stat := string(statData)
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// /proc/PID/stat: PID (comm) state ppid ...
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// comm 在括号中,可能含空格
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closeParen := strings.LastIndex(stat, ")")
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if closeParen < 0 {
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continue
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}
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openParen := strings.Index(stat, "(")
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if openParen < 0 {
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continue
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}
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name := stat[openParen+1 : closeParen]
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fields := strings.Fields(stat[closeParen+2:])
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if len(fields) < 20 {
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continue
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}
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// utime=fields[11], stime=fields[12], rss=fields[21]
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utime, _ := strconv.ParseInt(fields[11], 10, 64)
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stime, _ := strconv.ParseInt(fields[12], 10, 64)
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rss, _ := strconv.ParseInt(fields[21], 10, 64)
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// RSS pages * 4KB = RSS in KB
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rssKB := rss * 4
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// Simple CPU%: total ticks as fraction of uptime (approximate)
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totalTicks := utime + stime
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uptimeData, _ := os.ReadFile("/proc/uptime")
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uptime := 0.0
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if uptimeData != nil {
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uptime, _ = strconv.ParseFloat(strings.Fields(string(uptimeData))[0], 64)
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}
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hertz := float64(syscall.Getpagesize()) * 25
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if hertz == 0 {
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hertz = 100
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}
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// CLK_TCK is typically 100 on Linux
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cpuPercent := 0.0
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if uptime > 0 {
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cpuPercent = float64(totalTicks) / 100.0 / uptime * 100
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}
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procs = append(procs, procInfo{
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PID: pid,
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Name: name,
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CPUPercent: cpuPercent,
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RSSKB: rssKB,
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})
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}
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return procs
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}
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@@ -12,7 +12,6 @@ import (
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"log"
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"os"
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"os/signal"
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"strings"
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"syscall"
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"time"
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@@ -33,14 +32,6 @@ func main() {
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interval := flag.Int("interval", 10, "采集与上报间隔,单位:秒")
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token := flag.String("token", "", "Bearer 鉴权令牌")
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hostnameFlag := flag.String("hostname", "", "上报主机名,默认使用系统主机名")
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// 中间件采集配置
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redisFlag := flag.String("redis", "", "Redis 监控地址,逗号分隔多实例,格式 host:port")
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redisAuthFlag := flag.String("redis-auth", "", "Redis 认证密码")
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mysqlFlag := flag.String("mysql", "", "MySQL 监控地址,逗号分隔多实例,格式 host:port")
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mysqlUserFlag := flag.String("mysql-user", "root", "MySQL 用户名")
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mysqlPassFlag := flag.String("mysql-pass", "", "MySQL 密码")
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flag.Parse()
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// 统一日志格式:带微秒时间戳,便于排查问题
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@@ -77,32 +68,6 @@ func main() {
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diskIOCollector := collector.NewDiskIOCollector()
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rep := reporter.New(*server, *token, logger)
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// 系统信息(仅启动时采集一次)
|
||||
sysCollector := collector.NewSystemCollector()
|
||||
var systemStat model.SystemStat
|
||||
if stat, err := sysCollector.Collect(); err == nil {
|
||||
systemStat = stat
|
||||
logger.Printf("系统信息: OS=%s Kernel=%s Arch=%s nofile=%d nproc=%d",
|
||||
stat.OS, stat.Kernel, stat.Arch, stat.UlimitNofile, stat.UlimitNproc)
|
||||
}
|
||||
|
||||
// 进程采集器
|
||||
procCollector := collector.NewProcessCollector()
|
||||
|
||||
// 中间件采集器(可选)
|
||||
var mwCollector *collector.MiddlewareCollector
|
||||
if *redisFlag != "" || *mysqlFlag != "" {
|
||||
mwCfg := collector.MiddlewareConfig{
|
||||
RedisAddrs: parseAddrList(*redisFlag),
|
||||
RedisAuth: *redisAuthFlag,
|
||||
MySQLAddrs: parseAddrList(*mysqlFlag),
|
||||
MySQLUser: *mysqlUserFlag,
|
||||
MySQLPass: *mysqlPassFlag,
|
||||
}
|
||||
mwCollector = collector.NewMiddlewareCollector(mwCfg)
|
||||
logger.Printf("中间件采集已启用: redis=%d mysql=%d", len(mwCfg.RedisAddrs), len(mwCfg.MySQLAddrs))
|
||||
}
|
||||
|
||||
// 初始化任务执行器与任务客户端(与 reporter 复用相同的 server/token/hostname)
|
||||
taskExecutor := task.New(logger)
|
||||
taskClient := task.NewClient(*server, *token, hostname, logger)
|
||||
@@ -157,25 +122,6 @@ func main() {
|
||||
report.DiskIO = dioStat
|
||||
}
|
||||
|
||||
// 中间件采集(可选)
|
||||
if mwCollector != nil {
|
||||
if mwStat, err := mwCollector.Collect(); err != nil {
|
||||
logger.Printf("中间件采集异常: %v", err)
|
||||
} else {
|
||||
report.Middleware = mwStat
|
||||
}
|
||||
}
|
||||
|
||||
// 系统信息(每次上报附带)
|
||||
report.System = systemStat
|
||||
|
||||
// 进程采集
|
||||
if procStat, err := procCollector.Collect(); err != nil {
|
||||
logger.Printf("进程采集异常: %v", err)
|
||||
} else {
|
||||
report.Processes = procStat
|
||||
}
|
||||
|
||||
if err := rep.Send(ctx, report); err != nil {
|
||||
logger.Printf("上报失败: %v", err)
|
||||
return
|
||||
@@ -262,19 +208,3 @@ func maskToken(token string) string {
|
||||
}
|
||||
return token[:4] + "****"
|
||||
}
|
||||
|
||||
// parseAddrList 解析逗号分隔的地址列表,去除空白
|
||||
func parseAddrList(raw string) []string {
|
||||
if raw == "" {
|
||||
return nil
|
||||
}
|
||||
parts := strings.Split(raw, ",")
|
||||
var result []string
|
||||
for _, p := range parts {
|
||||
p = strings.TrimSpace(p)
|
||||
if p != "" {
|
||||
result = append(result, p)
|
||||
}
|
||||
}
|
||||
return result
|
||||
}
|
||||
+8
-64
@@ -6,46 +6,14 @@ package model
|
||||
|
||||
// Report 为单次采集周期的完整上报报文
|
||||
type Report struct {
|
||||
Hostname string `json:"hostname"` // 主机名
|
||||
Timestamp string `json:"timestamp"` // RFC3339 格式的 UTC 时间戳
|
||||
CPU CPUStat `json:"cpu"` // CPU 指标
|
||||
Memory MemoryStat `json:"memory"` // 内存指标
|
||||
Disks []DiskStat `json:"disks"` // 磁盘指标列表
|
||||
Ports []PortStat `json:"ports"` // 监听端口列表
|
||||
Network NetworkStat `json:"network"` // 网络指标
|
||||
DiskIO DiskIOStat `json:"disk_io"` // 磁盘 IO 指标
|
||||
Middleware MiddlewareStat `json:"middleware,omitempty"` // 中间件指标(Redis/MySQL)
|
||||
System SystemStat `json:"system,omitempty"` // 系统信息(OS/内核/ulimit)
|
||||
Processes ProcessStat `json:"processes,omitempty"` // Top N 进程
|
||||
}
|
||||
|
||||
// MiddlewareStat 中间件综合指标 — 包含 Redis + MySQL
|
||||
type MiddlewareStat struct {
|
||||
Redis []RedisMetric `json:"redis,omitempty"` // Redis 实例指标
|
||||
MySQL []MySQLMetric `json:"mysql,omitempty"` // MySQL 实例指标
|
||||
}
|
||||
|
||||
// RedisMetric Redis 实例采集指标
|
||||
type RedisMetric struct {
|
||||
Instance string `json:"instance"` // 实例标识(host:port)
|
||||
Clients int `json:"clients"` // 连接客户端数
|
||||
UsedMemory int64 `json:"used_memory"` // 已用内存(字节)
|
||||
HitRate float64 `json:"hit_rate"` // 缓存命中率(%)
|
||||
QPS float64 `json:"qps"` // 每秒命令数
|
||||
Uptime int64 `json:"uptime"` // 运行时长(秒)
|
||||
Version string `json:"version"` // Redis 版本
|
||||
}
|
||||
|
||||
// MySQLMetric MySQL 实例采集指标
|
||||
type MySQLMetric struct {
|
||||
Instance string `json:"instance"` // 实例标识(host:port)
|
||||
Connections int `json:"connections"` // 当前连接数
|
||||
QPS float64 `json:"qps"` // 每秒查询数
|
||||
SlowQueries int64 `json:"slow_queries"` // 慢查询累计数
|
||||
BufferHitRate float64 `json:"buffer_hit_rate"` // 缓冲池命中率(%)
|
||||
ThreadsRunning int `json:"threads_running"` // 活跃线程数
|
||||
Uptime int64 `json:"uptime"` // 运行时长(秒)
|
||||
Version string `json:"version"` // MySQL 版本
|
||||
Hostname string `json:"hostname"` // 主机名
|
||||
Timestamp string `json:"timestamp"` // RFC3339 格式的 UTC 时间戳
|
||||
CPU CPUStat `json:"cpu"` // CPU 指标
|
||||
Memory MemoryStat `json:"memory"` // 内存指标
|
||||
Disks []DiskStat `json:"disks"` // 磁盘指标列表
|
||||
Ports []PortStat `json:"ports"` // 监听端口列表
|
||||
Network NetworkStat `json:"network"` // 网络指标
|
||||
DiskIO DiskIOStat `json:"disk_io"` // 磁盘 IO 指标
|
||||
}
|
||||
|
||||
// CPUStat CPU 相关指标
|
||||
@@ -81,27 +49,3 @@ type PortStat struct {
|
||||
Process string `json:"process"` // 进程名(可执行文件名)
|
||||
PID int `json:"pid"` // 进程 PID(无法解析时为 0)
|
||||
}
|
||||
|
||||
// SystemStat 系统信息指标
|
||||
type SystemStat struct {
|
||||
OS string `json:"os"` // 操作系统名称
|
||||
Kernel string `json:"kernel"` // 内核版本
|
||||
Arch string `json:"arch"` // 系统架构
|
||||
Hostname string `json:"hostname"` // 主机名
|
||||
UlimitNofile int64 `json:"ulimit_nofile"` // 文件句柄数上限
|
||||
UlimitNproc int64 `json:"ulimit_nproc"` // 进程数上限
|
||||
}
|
||||
|
||||
// ProcessStat 进程监控指标
|
||||
type ProcessStat struct {
|
||||
TopCPU []ProcessInfo `json:"top_cpu"` // Top 5 CPU 进程
|
||||
TopMem []ProcessInfo `json:"top_mem"` // Top 5 内存进程
|
||||
}
|
||||
|
||||
// ProcessInfo 单个进程信息
|
||||
type ProcessInfo struct {
|
||||
PID int `json:"pid"` // 进程 ID
|
||||
Name string `json:"name"` // 进程名
|
||||
CPUPercent float64 `json:"cpu_percent"` // CPU 使用率 (%)
|
||||
RSSKB int64 `json:"rss_kb"` // 物理内存 (KB)
|
||||
}
|
||||
Reference in new issue
Block a user