101 lines
3.2 KiB
Go
101 lines
3.2 KiB
Go
package logic
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import (
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"context"
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"strconv"
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"strings"
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"time"
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"github.com/gogf/gf/v2/frame/g"
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"easygoadmin/api/v1"
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"easygoadmin/internal/service"
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"easygoadmin/utility/cache"
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)
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// ============================== 缓存监控业务实现 ==============================
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// sCacheMonitor 缓存监控业务实现
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// Redis 模式解析 INFO 各节；内存降级模式仅返回模式标识
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type sCacheMonitor struct{}
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func init() {
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service.RegisterCacheMonitor(&sCacheMonitor{})
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}
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// Info 查询缓存监控信息
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func (s *sCacheMonitor) Info(ctx context.Context, req *v1.CacheInfoReq) (res *v1.CacheInfoRes, err error) {
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if cache.UsingMemory() {
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return &v1.CacheInfoRes{Mode: "memory", Connected: false}, nil
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}
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res = &v1.CacheInfoRes{Mode: "redis", Connected: true}
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sections := map[string]map[string]string{}
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for _, name := range []string{"server", "memory", "stats", "clients", "keyspace"} {
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v, err := g.Redis().Do(ctx, "INFO", name)
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if err != nil {
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res.Connected = false
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return res, nil
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}
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sections[name] = parseRedisInfo(v.String())
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}
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res.Version = sections["server"]["redis_version"]
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if sec, e := strconv.ParseInt(sections["server"]["uptime_in_seconds"], 10, 64); e == nil {
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res.Uptime = (time.Duration(sec) * time.Second).String()
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}
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res.UsedMemory = sections["memory"]["used_memory_human"]
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res.UsedMemoryPeak = sections["memory"]["used_memory_peak_human"]
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res.MaxMemory = sections["memory"]["maxmemory_human"]
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res.FragRatio = sections["memory"]["mem_fragmentation_ratio"]
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res.ConnectedClients, _ = strconv.ParseInt(sections["clients"]["connected_clients"], 10, 64)
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res.ExpiredKeys, _ = strconv.ParseInt(sections["stats"]["expired_keys"], 10, 64)
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res.EvictedKeys, _ = strconv.ParseInt(sections["stats"]["evicted_keys"], 10, 64)
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res.TotalCommands, _ = strconv.ParseInt(sections["stats"]["total_commands_processed"], 10, 64)
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res.TotalConns, _ = strconv.ParseInt(sections["stats"]["total_connections_received"], 10, 64)
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res.Hits, _ = strconv.ParseInt(sections["stats"]["keyspace_hits"], 10, 64)
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res.Misses, _ = strconv.ParseInt(sections["stats"]["keyspace_misses"], 10, 64)
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if total := res.Hits + res.Misses; total > 0 {
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res.HitRate = strconv.FormatFloat(float64(res.Hits)/float64(total)*100, 'f', 2, 64)
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} else {
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res.HitRate = "0.00"
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}
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if v, e := g.Redis().Do(ctx, "DBSIZE"); e == nil {
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res.Keys = v.Int64()
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}
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for k, line := range sections["keyspace"] {
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if !strings.HasPrefix(k, "db") {
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continue
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}
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entry := v1.CacheKeySpaceDb{Db: k}
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for _, kv := range strings.Split(line, ",") {
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parts := strings.SplitN(kv, "=", 2)
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if len(parts) != 2 {
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continue
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}
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switch parts[0] {
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case "keys":
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entry.Keys, _ = strconv.ParseInt(parts[1], 10, 64)
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case "expires":
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entry.Expires, _ = strconv.ParseInt(parts[1], 10, 64)
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}
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}
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res.KeySpace = append(res.KeySpace, entry)
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}
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return res, nil
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}
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// parseRedisInfo 解析 INFO 输出为 键→值 映射
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func parseRedisInfo(s string) map[string]string {
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out := map[string]string{}
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for _, line := range strings.Split(s, "\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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if idx := strings.Index(line, ":"); idx > 0 {
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out[line[:idx]] = strings.TrimSpace(line[idx+1:])
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}
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}
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return out
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}
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