fixup slice override

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

.gitignore

@@ -0,0 +1 @@
+.idea

options.go

@@ -27,6 +27,9 @@ var (
 	DefaultMeterStatsInterval = 5 * time.Second
 	// DefaultMeterMetricPrefix holds default metric prefix
 	DefaultMeterMetricPrefix = "micro_store_"
+
+	labelHost = "redis_host"
+	labelName = "redis_name"
 )
 
 // Options struct holds wrapper options
@@ -36,6 +39,8 @@ type Options struct {
 	Tracer             tracer.Tracer
 	MeterMetricPrefix  string
 	MeterStatsInterval time.Duration
+	RedisHost          string
+	RedisName          string
 }
 
 // Option func signature
@@ -56,7 +61,9 @@ func NewOptions(opts ...Option) Options {
 	}
 
 	options.Meter = options.Meter.Clone(
-		meter.MetricPrefix(options.MeterMetricPrefix),
+		meter.Labels(
+			labelHost, options.RedisHost,
+			labelName, options.RedisName),
 	)
 
 	options.Logger = options.Logger.Clone(logger.WithCallerSkipCount(1))

redis.go

@@ -218,9 +218,11 @@ func (r *Store) MRead(ctx context.Context, keys []string, vals interface{}, opts
 		defer cancel()
 	}
 
+	var rkeys []string
 	if r.opts.Namespace != "" || options.Namespace != "" {
+		rkeys = make([]string, len(keys))
 		for idx, key := range keys {
-			keys[idx] = r.getKey(r.opts.Namespace, options.Namespace, key)
+			rkeys[idx] = r.getKey(r.opts.Namespace, options.Namespace, key)
 		}
 	}
 
@@ -228,10 +230,18 @@ func (r *Store) MRead(ctx context.Context, keys []string, vals interface{}, opts
 	ts := time.Now()
 	var rvals []interface{}
 	var err error
-	if r.cli.Client != nil {
-		rvals, err = r.cli.Client.MGet(ctx, keys...).Result()
+	if r.opts.Namespace != "" || options.Namespace != "" {
+		if r.cli.Client != nil {
+			rvals, err = r.cli.Client.MGet(ctx, rkeys...).Result()
+		} else {
+			rvals, err = r.cli.ClusterClient.MGet(ctx, rkeys...).Result()
+		}
 	} else {
-		rvals, err = r.cli.ClusterClient.MGet(ctx, keys...).Result()
+		if r.cli.Client != nil {
+			rvals, err = r.cli.Client.MGet(ctx, keys...).Result()
+		} else {
+			rvals, err = r.cli.ClusterClient.MGet(ctx, keys...).Result()
+		}
 	}
 	setSpanError(ctx, err)
 	te := time.Since(ts)
@@ -308,19 +318,29 @@ func (r *Store) MDelete(ctx context.Context, keys []string, opts ...store.Delete
 		defer cancel()
 	}
 
+	var rkeys []string
 	if r.opts.Namespace != "" || options.Namespace != "" {
+		rkeys = make([]string, len(keys))
 		for idx, key := range keys {
-			keys[idx] = r.getKey(r.opts.Namespace, options.Namespace, key)
+			rkeys[idx] = r.getKey(r.opts.Namespace, options.Namespace, key)
 		}
 	}
 
 	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Inc()
 	ts := time.Now()
 	var err error
-	if r.cli.Client != nil {
-		err = r.cli.Client.Del(ctx, keys...).Err()
+	if r.opts.Namespace != "" || options.Namespace != "" {
+		if r.cli.Client != nil {
+			err = r.cli.Client.Del(ctx, rkeys...).Err()
+		} else {
+			err = r.cli.ClusterClient.Del(ctx, rkeys...).Err()
+		}
 	} else {
-		err = r.cli.ClusterClient.Del(ctx, keys...).Err()
+		if r.cli.Client != nil {
+			err = r.cli.Client.Del(ctx, keys...).Err()
+		} else {
+			err = r.cli.ClusterClient.Del(ctx, keys...).Err()
+		}
 	}
 	setSpanError(ctx, err)
 	te := time.Since(ts)

tracer.go

@@ -6,7 +6,7 @@ import (
 	"net"
 	"strconv"
 
-	"github.com/redis/go-redis/extra/rediscmd/v9"
+	rediscmd "github.com/redis/go-redis/extra/rediscmd/v9"
 	"github.com/redis/go-redis/v9"
 	"go.unistack.org/micro/v3/tracer"
 )
@@ -18,14 +18,12 @@ func setTracing(rdb redis.UniversalClient, tr tracer.Tracer, opts ...tracer.Span
 		connString := formatDBConnString(opt.Network, opt.Addr)
 		rdb.AddHook(newTracingHook(connString, tr))
 	case *redis.ClusterClient:
-		rdb.AddHook(newTracingHook("", tr, opts...))
 		rdb.OnNewNode(func(rdb *redis.Client) {
 			opt := rdb.Options()
 			connString := formatDBConnString(opt.Network, opt.Addr)
 			rdb.AddHook(newTracingHook(connString, tr))
 		})
 	case *redis.Ring:
-		rdb.AddHook(newTracingHook("", tr, opts...))
 		rdb.OnNewNode(func(rdb *redis.Client) {
 			opt := rdb.Options()
 			connString := formatDBConnString(opt.Network, opt.Addr)
@@ -55,11 +53,12 @@ func newTracingHook(connString string, tr tracer.Tracer, opts ...tracer.SpanOpti
 
 func (h *tracingHook) DialHook(hook redis.DialHook) redis.DialHook {
 	return func(ctx context.Context, network, addr string) (net.Conn, error) {
-		_, span := h.tr.Start(ctx, "redis.dial", h.opts...)
-		defer span.Finish()
-
+		/*
+			_, span := h.tr.Start(ctx, "redis.dial", h.opts...)
+			defer span.Finish()
+		*/
 		conn, err := hook(ctx, network, addr)
-		recordError(span, err)
+		// recordError(span, err)
 
 		return conn, err
 	}
@@ -68,12 +67,20 @@ func (h *tracingHook) DialHook(hook redis.DialHook) redis.DialHook {
 func (h *tracingHook) ProcessHook(hook redis.ProcessHook) redis.ProcessHook {
 	return func(ctx context.Context, cmd redis.Cmder) error {
 		cmdString := rediscmd.CmdString(cmd)
+		var err error
 
-		_, span := h.tr.Start(ctx, "redis.process", append(h.opts, tracer.WithSpanLabels("db.statement", cmdString))...)
-		defer span.Finish()
+		switch cmdString {
+		case "cluster slots":
+			break
+		default:
+			_, span := h.tr.Start(ctx, "redis.process", append(h.opts, tracer.WithSpanLabels("db.statement", cmdString))...)
+			defer func() {
+				recordError(span, err)
+				span.Finish()
+			}()
+		}
 
-		err := hook(ctx, cmd)
-		recordError(span, err)
+		err = hook(ctx, cmd)
 
 		return err
 	}