fixup duplicate nested redis span

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

.gitea/workflows/job_lint.yml

@@ -1,29 +0,0 @@
-name: lint
-
-on:
-  pull_request:
-    types: [opened, reopened, synchronize]
-    branches:
-    - master
-    - v3
-    - v4
-
-jobs:
-  lint:
-    runs-on: ubuntu-latest
-    steps:
-    - name: checkout code
-      uses: actions/checkout@v4
-      with:
-        filter: 'blob:none'
-    - name: setup go
-      uses: actions/setup-go@v5
-      with:
-        cache-dependency-path: "**/*.sum"
-        go-version: 'stable' 
-    - name: setup deps
-      run: go get -v ./...
-    - name: run lint
-      uses: https://github.com/golangci/golangci-lint-action@v6
-      with:
-        version: 'latest'

.gitea/workflows/job_test.yml

@@ -1,34 +0,0 @@
-name: test
-
-on:
-  pull_request:
-    types: [opened, reopened, synchronize]
-    branches:
-    - master
-    - v3
-    - v4
-  push:
-    branches:
-    - master
-    - v3
-    - v4
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-    - name: checkout code
-      uses: actions/checkout@v4
-      with:
-        filter: 'blob:none'
-    - name: setup go
-      uses: actions/setup-go@v5
-      with:
-        cache-dependency-path: "**/*.sum"
-        go-version: 'stable'
-    - name: setup deps
-      run: go get -v ./...
-    - name: run test
-      env:
-        INTEGRATION_TESTS: yes
-      run: go test -mod readonly -v ./...

.gitea/workflows/job_tests.yml

@@ -1,53 +0,0 @@
-name: test
-
-on:
-  pull_request:
-    types: [opened, reopened, synchronize]
-    branches:
-    - master
-    - v3
-    - v4
-  push:
-    branches:
-    - master
-    - v3
-    - v4
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-    - name: checkout code
-      uses: actions/checkout@v4
-      with:
-        filter: 'blob:none'
-    - name: checkout tests
-      uses: actions/checkout@v4
-      with:
-        ref: master
-        filter: 'blob:none'
-        repository: unistack-org/micro-tests
-        path: micro-tests
-    - name: setup go
-      uses: actions/setup-go@v5
-      with:
-        cache-dependency-path: "**/*.sum"
-        go-version: 'stable'
-    - name: setup go work
-      env:
-        GOWORK: /workspace/${{ github.repository_owner }}/go.work
-      run: |
-        go work init
-        go work use .
-        go work use micro-tests
-    - name: setup deps
-      env:
-        GOWORK: /workspace/${{ github.repository_owner }}/go.work
-      run: go get -v ./...
-    - name: run tests
-      env:
-        INTEGRATION_TESTS: yes
-        GOWORK: /workspace/${{ github.repository_owner }}/go.work
-      run: |
-        cd micro-tests
-        go test -mod readonly -v ./... || true

.github/dependabot.yml

@@ -0,0 +1,19 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+
+  # Maintain dependencies for Golang
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/autoapprove.yml

@@ -0,0 +1,20 @@
+name: "autoapprove"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  autoapprove:
+    runs-on: ubuntu-latest
+    steps:
+      - name: approve
+        uses: hmarr/auto-approve-action@v3
+        if: github.actor == 'vtolstov' || github.actor == 'dependabot[bot]'
+        id: approve
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/automerge.yml

@@ -0,0 +1,21 @@
+name: "automerge"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  automerge:
+    runs-on: ubuntu-latest
+    if: github.actor == 'vtolstov'
+    steps:
+      - name: merge
+        id: merge
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.TOKEN}}

.github/workflows/build.yml

@@ -0,0 +1,47 @@
+name: build
+on:
+ push:
+    branches:
+    - master
+    - v3
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+    - name: setup
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.17
+    - name: checkout
+      uses: actions/checkout@v3
+    - name: cache
+      uses: actions/cache@v3
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: ${{ runner.os }}-go-
+    - name: deps
+      run: go get -v -t -d ./...
+    - name: test
+      env:
+        INTEGRATION_TESTS: yes
+      run: go test -mod readonly -v ./...
+  lint:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v3
+      - name: lint
+        uses: golangci/golangci-lint-action@v3.4.0
+        continue-on-error: true
+        with:
+          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          version: v1.30
+          # Optional: working directory, useful for monorepos
+          # working-directory: somedir
+          # Optional: golangci-lint command line arguments.
+          # args: --issues-exit-code=0
+          # Optional: show only new issues if it's a pull request. The default value is `false`.
+          # only-new-issues: true

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,78 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "codeql"
+
+on:
+  workflow_run:
+    workflows: ["prbuild"]
+    types:
+      - completed
+  push:
+    branches: [ master, v3 ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ master, v3 ]
+  schedule:
+    - cron: '34 1 * * 0'
+
+jobs:
+  analyze:
+    name: analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'go' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
+        # Learn more:
+        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
+
+    steps:
+    - name: checkout
+      uses: actions/checkout@v3
+    - name: setup
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.17
+    # Initializes the CodeQL tools for scanning.
+    - name: init
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: autobuild
+      uses: github/codeql-action/autobuild@v2
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: analyze
+      uses: github/codeql-action/analyze@v2

.github/workflows/dependabot-automerge.yml

@@ -0,0 +1,27 @@
+name: "dependabot-automerge"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  automerge:
+    runs-on: ubuntu-latest
+    if: github.actor == 'dependabot[bot]'
+    steps:
+      - name: metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v1.3.6
+        with:
+          github-token: "${{ secrets.TOKEN }}"
+      - name: merge
+        id: merge
+        if: ${{contains(steps.metadata.outputs.dependency-names, 'go.unistack.org')}}
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.TOKEN}}

.github/workflows/pr.yml

@@ -0,0 +1,47 @@
+name: prbuild
+on:
+  pull_request:
+    branches:
+    - master
+    - v3
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+    - name: setup
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.17
+    - name: checkout
+      uses: actions/checkout@v3
+    - name: cache
+      uses: actions/cache@v3
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: ${{ runner.os }}-go-
+    - name: deps
+      run: go get -v -t -d ./...
+    - name: test
+      env:
+        INTEGRATION_TESTS: yes
+      run: go test -mod readonly -v ./...
+  lint:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v3
+      - name: lint
+        uses: golangci/golangci-lint-action@v3.4.0
+        continue-on-error: true
+        with:
+          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          version: v1.30
+          # Optional: working directory, useful for monorepos
+          # working-directory: somedir
+          # Optional: golangci-lint command line arguments.
+          # args: --issues-exit-code=0
+          # Optional: show only new issues if it's a pull request. The default value is `false`.
+          # only-new-issues: true

.golangci.yml

@@ -1,5 +0,0 @@
-run:
-  concurrency: 8
-  deadline: 5m
-  issues-exit-code: 1
-  tests: true

go.mod

@@ -1,14 +1,16 @@
-module go.unistack.org/micro-store-redis/v4
+module go.unistack.org/micro-store-redis/v3
 
-go 1.20
+go 1.21
+
+toolchain go1.22.4
 
 require (
-	github.com/redis/go-redis/v9 v9.2.1
+	github.com/redis/go-redis/extra/rediscmd/v9 v9.5.3
-	go.unistack.org/micro/v4 v4.0.7
+	github.com/redis/go-redis/v9 v9.5.3
+	go.unistack.org/micro/v3 v3.10.80
 )
 
 require (
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
-	github.com/patrickmn/go-cache v2.1.0+incompatible // indirect
 )

go.sum

@@ -1,12 +1,14 @@
 github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs=
+github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c=
 github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
+github.com/bsm/gomega v1.27.10/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
-github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaRUnok+kx1WdO15EQc=
+github.com/redis/go-redis/extra/rediscmd/v9 v9.5.3 h1:1/BDligzCa40GTllkDnY3Y5DTHuKCONbB2JcRyIfl20=
-github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
+github.com/redis/go-redis/extra/rediscmd/v9 v9.5.3/go.mod h1:3dZmcLn3Qw6FLlWASn1g4y+YO9ycEFUOM+bhBmzLVKQ=
-github.com/redis/go-redis/v9 v9.2.1 h1:WlYJg71ODF0dVspZZCpYmoF1+U1Jjk9Rwd7pq6QmlCg=
+github.com/redis/go-redis/v9 v9.5.3 h1:fOAp1/uJG+ZtcITgZOfYFmTKPE7n4Vclj1wZFgRciUU=
-github.com/redis/go-redis/v9 v9.2.1/go.mod h1:hdY0cQFCN4fnSYT6TkisLufl/4W5UIXyv0b/CLO2V2M=
+github.com/redis/go-redis/v9 v9.5.3/go.mod h1:hdY0cQFCN4fnSYT6TkisLufl/4W5UIXyv0b/CLO2V2M=
-go.unistack.org/micro/v4 v4.0.7 h1:2lwtZlHcSwgkahhFbkI4x1lOS79lw8uLHtcEhlFF+AM=
+go.unistack.org/micro/v3 v3.10.80 h1:A0zWNoM9MOcMg9gdFFgVkgbT3uSYVIINhuvumX9nP2o=
-go.unistack.org/micro/v4 v4.0.7/go.mod h1:bVEYTlPi0EsdgZZt311bIroDg9ict7ky3C87dSCCAGk=
+go.unistack.org/micro/v3 v3.10.80/go.mod h1:erMgt3Bl7vQQ0e9UpQyR5NlLiZ9pKeEJ9+1tfYFaqUg=

options.go

@@ -1,12 +1,79 @@
 package redis
 
 import (
+	"time"
+
 	"github.com/redis/go-redis/v9"
-	"go.unistack.org/micro/v4/options"
+	"go.unistack.org/micro/v3/logger"
+	"go.unistack.org/micro/v3/meter"
+	"go.unistack.org/micro/v3/store"
+	"go.unistack.org/micro/v3/tracer"
 )
 
-type universalConfigKey struct{}
+type configKey struct{}
 
-func UniversalConfig(c *redis.UniversalOptions) options.Option {
+func Config(c *redis.Options) store.Option {
-	return options.ContextOption(universalConfigKey{}, c)
+	return store.SetOption(configKey{}, c)
+}
+
+type clusterConfigKey struct{}
+
+func ClusterConfig(c *redis.ClusterOptions) store.Option {
+	return store.SetOption(clusterConfigKey{}, c)
+}
+
+var (
+	// DefaultMeterStatsInterval holds default stats interval
+	DefaultMeterStatsInterval = 5 * time.Second
+	// DefaultMeterMetricPrefix holds default metric prefix
+	DefaultMeterMetricPrefix = "micro_store_"
+)
+
+// Options struct holds wrapper options
+type Options struct {
+	Logger             logger.Logger
+	Meter              meter.Meter
+	Tracer             tracer.Tracer
+	MeterMetricPrefix  string
+	MeterStatsInterval time.Duration
+}
+
+// Option func signature
+type Option func(*Options)
+
+// NewOptions create new Options struct from provided option slice
+func NewOptions(opts ...Option) Options {
+	options := Options{
+		Logger:             logger.DefaultLogger,
+		Meter:              meter.DefaultMeter,
+		Tracer:             tracer.DefaultTracer,
+		MeterStatsInterval: DefaultMeterStatsInterval,
+		MeterMetricPrefix:  DefaultMeterMetricPrefix,
+	}
+
+	for _, o := range opts {
+		o(&options)
+	}
+
+	options.Meter = options.Meter.Clone(
+		meter.MetricPrefix(options.MeterMetricPrefix),
+	)
+
+	options.Logger = options.Logger.Clone(logger.WithCallerSkipCount(1))
+
+	return options
+}
+
+// MetricInterval specifies stats interval for *sql.DB
+func MetricInterval(td time.Duration) Option {
+	return func(o *Options) {
+		o.MeterStatsInterval = td
+	}
+}
+
+// MetricPrefix specifies prefix for each metric
+func MetricPrefix(pref string) Option {
+	return func(o *Options) {
+		o.MeterMetricPrefix = pref
+	}
 }

redis.go

@@ -7,115 +7,245 @@ import (
 	"strings"
 	"time"
 
-	"github.com/redis/go-redis/v9"
+	redis "github.com/redis/go-redis/v9"
-	"go.unistack.org/micro/v4/options"
+	"go.unistack.org/micro/v3/semconv"
-	"go.unistack.org/micro/v4/store"
+	"go.unistack.org/micro/v3/store"
+	pool "go.unistack.org/micro/v3/util/xpool"
+)
+
+var (
+	DefaultPathSeparator = "/"
+
+	DefaultClusterOptions = &redis.ClusterOptions{
+		Username:        "",
+		Password:        "", // no password set
+		MaxRetries:      2,
+		MaxRetryBackoff: 256 * time.Millisecond,
+		DialTimeout:     1 * time.Second,
+		ReadTimeout:     1 * time.Second,
+		WriteTimeout:    1 * time.Second,
+		PoolTimeout:     1 * time.Second,
+		MinIdleConns:    10,
+	}
+
+	DefaultOptions = &redis.Options{
+		Username:        "",
+		Password:        "", // no password set
+		DB:              0,  // use default DB
+		MaxRetries:      2,
+		MaxRetryBackoff: 256 * time.Millisecond,
+		DialTimeout:     1 * time.Second,
+		ReadTimeout:     1 * time.Second,
+		WriteTimeout:    1 * time.Second,
+		PoolTimeout:     1 * time.Second,
+		MinIdleConns:    10,
+	}
 )
 
 type Store struct {
 	opts store.Options
-	cli  redis.UniversalClient
+	cli  *wrappedClient
+	done chan struct{}
+	pool pool.Pool[*strings.Builder]
+}
+
+type wrappedClient struct {
+	*redis.Client
+	*redis.ClusterClient
 }
 
 func (r *Store) Connect(ctx context.Context) error {
-	return r.cli.Ping(ctx).Err()
+	var err error
-}
+	if r.cli.Client != nil {
-
+		err = r.cli.Client.Ping(ctx).Err()
-func (r *Store) Init(opts ...options.Option) error {
-	return r.configure(opts...)
-}
-
-func (r *Store) Redis() redis.UniversalClient {
-	return r.cli
-}
-
-func (r *Store) Disconnect(ctx context.Context) error {
-	return r.cli.Close()
-}
-
-func (r *Store) Exists(ctx context.Context, key string, opts ...options.Option) error {
-	if r.opts.Timeout > 0 {
-		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, r.opts.Timeout)
-		defer cancel()
 	}
-	options := store.NewExistsOptions(opts...)
+	err = r.cli.ClusterClient.Ping(ctx).Err()
-	if len(options.Namespace) == 0 {
+	setSpanError(ctx, err)
-		options.Namespace = r.opts.Namespace
+	return err
+}
+
+func (r *Store) Init(opts ...store.Option) error {
+	for _, o := range opts {
+		o(&r.opts)
 	}
-	if options.Namespace != "" {
+
-		key = fmt.Sprintf("%s%s", r.opts.Namespace, key)
+	err := r.configure()
-	}
-	val, err := r.cli.Exists(ctx, key).Result()
 	if err != nil {
 		return err
 	}
-	if val == 0 {
+
-		return store.ErrNotFound
+	return nil
+}
+
+func (r *Store) Client() *redis.Client {
+	if r.cli.Client != nil {
+		return r.cli.Client
 	}
 	return nil
 }
 
-func (r *Store) Read(ctx context.Context, key string, val interface{}, opts ...options.Option) error {
+func (r *Store) ClusterClient() *redis.ClusterClient {
-	if r.opts.Timeout > 0 {
+	if r.cli.ClusterClient != nil {
-		var cancel context.CancelFunc
+		return r.cli.ClusterClient
-		ctx, cancel = context.WithTimeout(ctx, r.opts.Timeout)
-		defer cancel()
 	}
-	options := store.NewReadOptions(opts...)
+	return nil
-	if len(options.Namespace) == 0 {
-		options.Namespace = r.opts.Namespace
-	}
-	if options.Namespace != "" {
-		key = fmt.Sprintf("%s%s", options.Namespace, key)
-	}
-
-	buf, err := r.cli.Get(ctx, key).Bytes()
-	if err != nil && err == redis.Nil {
-		return store.ErrNotFound
-	} else if err != nil {
-		return err
-	}
-	if buf == nil {
-		return store.ErrNotFound
-	}
-	return r.opts.Codec.Unmarshal(buf, val)
 }
 
-func (r *Store) MRead(ctx context.Context, keys []string, vals interface{}, opts ...options.Option) error {
+func (r *Store) Disconnect(ctx context.Context) error {
-	if len(keys) == 1 {
+	var err error
-		vt := reflect.ValueOf(vals)
+	select {
-		if vt.Kind() == reflect.Ptr {
+	case <-r.done:
-			vt = reflect.Indirect(vt)
+		return err
-			return r.Read(ctx, keys[0], vt.Index(0).Interface(), opts...)
+	default:
+		if r.cli.Client != nil {
+			err = r.cli.Client.Close()
+		} else if r.cli.ClusterClient != nil {
+			err = r.cli.ClusterClient.Close()
 		}
+		close(r.done)
+		return err
 	}
-	if r.opts.Timeout > 0 {
+}
+
+func (r *Store) Exists(ctx context.Context, key string, opts ...store.ExistsOption) error {
+	options := store.NewExistsOptions(opts...)
+
+	timeout := r.opts.Timeout
+	if options.Timeout > 0 {
+		timeout = options.Timeout
+	}
+
+	if timeout > 0 {
 		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, r.opts.Timeout)
+		ctx, cancel = context.WithTimeout(ctx, timeout)
 		defer cancel()
 	}
-	options := store.NewReadOptions(opts...)
+
-	rkeys := make([]string, 0, len(keys))
+	rkey := r.getKey(r.opts.Namespace, options.Namespace, key)
-	if len(options.Namespace) == 0 {
+
-		options.Namespace = r.opts.Namespace
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Inc()
+	ts := time.Now()
+	var err error
+	var val int64
+	if r.cli.Client != nil {
+		val, err = r.cli.Client.Exists(ctx, rkey).Result()
+	} else {
+		val, err = r.cli.ClusterClient.Exists(ctx, rkey).Result()
 	}
-	for _, key := range keys {
+	setSpanError(ctx, err)
-		if options.Namespace != "" {
+	te := time.Since(ts)
-			rkeys = append(rkeys, fmt.Sprintf("%s%s", options.Namespace, key))
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Dec()
-		} else {
+	r.opts.Meter.Summary(semconv.StoreRequestLatencyMicroseconds, "name", options.Name).Update(te.Seconds())
-			rkeys = append(rkeys, key)
+	r.opts.Meter.Histogram(semconv.StoreRequestDurationSeconds, "name", options.Name).Update(te.Seconds())
+	if err == redis.Nil || (err == nil && val == 0) {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "miss").Inc()
+		return store.ErrNotFound
+	} else if err == nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "hit").Inc()
+	} else if err != nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "failure").Inc()
+		return err
+	}
+
+	return nil
+}
+
+func (r *Store) Read(ctx context.Context, key string, val interface{}, opts ...store.ReadOption) error {
+	options := store.NewReadOptions(opts...)
+
+	timeout := r.opts.Timeout
+	if options.Timeout > 0 {
+		timeout = options.Timeout
+	}
+
+	if timeout > 0 {
+		var cancel context.CancelFunc
+		ctx, cancel = context.WithTimeout(ctx, timeout)
+		defer cancel()
+	}
+
+	rkey := r.getKey(r.opts.Namespace, options.Namespace, key)
+
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Inc()
+	ts := time.Now()
+	var buf []byte
+	var err error
+	if r.cli.Client != nil {
+		buf, err = r.cli.Client.Get(ctx, rkey).Bytes()
+	} else {
+		buf, err = r.cli.ClusterClient.Get(ctx, rkey).Bytes()
+	}
+	setSpanError(ctx, err)
+	te := time.Since(ts)
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Dec()
+	r.opts.Meter.Summary(semconv.StoreRequestLatencyMicroseconds, "name", options.Name).Update(te.Seconds())
+	r.opts.Meter.Histogram(semconv.StoreRequestDurationSeconds, "name", options.Name).Update(te.Seconds())
+	if err == redis.Nil || (err == nil && buf == nil) {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "miss").Inc()
+		return store.ErrNotFound
+	} else if err == nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "hit").Inc()
+	} else if err != nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "failure").Inc()
+		return err
+	}
+
+	switch b := val.(type) {
+	case *[]byte:
+		*b = buf
+	case *string:
+		*b = string(buf)
+	default:
+		if err = r.opts.Codec.Unmarshal(buf, val); err != nil {
+			setSpanError(ctx, err)
 		}
 	}
 
-	rvals, err := r.cli.MGet(ctx, rkeys...).Result()
+	return err
-	if err != nil && err == redis.Nil {
+}
-		return store.ErrNotFound
+
-	} else if err != nil {
+func (r *Store) MRead(ctx context.Context, keys []string, vals interface{}, opts ...store.ReadOption) error {
-		return err
+	options := store.NewReadOptions(opts...)
+
+	timeout := r.opts.Timeout
+	if options.Timeout > 0 {
+		timeout = options.Timeout
 	}
-	if len(rvals) == 0 {
+
+	if timeout > 0 {
+		var cancel context.CancelFunc
+		ctx, cancel = context.WithTimeout(ctx, timeout)
+		defer cancel()
+	}
+
+	if r.opts.Namespace != "" || options.Namespace != "" {
+		for idx, key := range keys {
+			keys[idx] = r.getKey(r.opts.Namespace, options.Namespace, key)
+		}
+	}
+
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Inc()
+	ts := time.Now()
+	var rvals []interface{}
+	var err error
+	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)
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Dec()
+	r.opts.Meter.Summary(semconv.StoreRequestLatencyMicroseconds, "name", options.Name).Update(te.Seconds())
+	r.opts.Meter.Histogram(semconv.StoreRequestDurationSeconds, "name", options.Name).Update(te.Seconds())
+	if err == redis.Nil || (len(rvals) == 0) {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "miss").Inc()
 		return store.ErrNotFound
+	} else if err == nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "hit").Inc()
+	} else if err != nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "failure").Inc()
+		return err
 	}
 
 	vv := reflect.ValueOf(vals)
@@ -146,77 +276,128 @@ func (r *Store) MRead(ctx context.Context, keys []string, vals interface{}, opts
 		// special case for raw data
 		if vt.Kind() == reflect.Slice && vt.Elem().Kind() == reflect.Uint8 {
 			itm.Set(reflect.MakeSlice(itm.Type(), len(buf), len(buf)))
-		} else {
+			itm.SetBytes(buf)
-			itm.Set(reflect.New(vt.Elem()))
+			continue
+		} else if vt.Kind() == reflect.String {
+			itm.SetString(string(buf))
+			continue
 		}
+
+		itm.Set(reflect.New(vt.Elem()))
 		if err = r.opts.Codec.Unmarshal(buf, itm.Interface()); err != nil {
+			setSpanError(ctx, err)
 			return err
 		}
 	}
 	vv.Set(nvv)
+
 	return nil
 }
 
-func (r *Store) MDelete(ctx context.Context, keys []string, opts ...options.Option) error {
+func (r *Store) MDelete(ctx context.Context, keys []string, opts ...store.DeleteOption) error {
-	if len(keys) == 1 {
+	options := store.NewDeleteOptions(opts...)
-		return r.Delete(ctx, keys[0], opts...)
+
+	timeout := r.opts.Timeout
+	if options.Timeout > 0 {
+		timeout = options.Timeout
 	}
-	if r.opts.Timeout > 0 {
+
+	if timeout > 0 {
 		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, r.opts.Timeout)
+		ctx, cancel = context.WithTimeout(ctx, timeout)
 		defer cancel()
 	}
-	options := store.NewDeleteOptions(opts...)
+
-	if len(options.Namespace) == 0 {
+	if r.opts.Namespace != "" || options.Namespace != "" {
-		options.Namespace = r.opts.Namespace
+		for idx, key := range keys {
+			keys[idx] = r.getKey(r.opts.Namespace, options.Namespace, key)
+		}
 	}
-	if options.Namespace == "" {
+
-		return r.cli.Del(ctx, keys...).Err()
+	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()
+	} else {
+		err = r.cli.ClusterClient.Del(ctx, keys...).Err()
 	}
-	for idx := range keys {
+	setSpanError(ctx, err)
-		keys[idx] = options.Namespace + keys[idx]
+	te := time.Since(ts)
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Dec()
+	r.opts.Meter.Summary(semconv.StoreRequestLatencyMicroseconds, "name", options.Name).Update(te.Seconds())
+	r.opts.Meter.Histogram(semconv.StoreRequestDurationSeconds, "name", options.Name).Update(te.Seconds())
+	if err == redis.Nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "miss").Inc()
+		return store.ErrNotFound
+	} else if err == nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "hit").Inc()
+	} else if err != nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "failure").Inc()
+		return err
 	}
-	return r.cli.Del(ctx, keys...).Err()
+
+	return nil
 }
 
-func (r *Store) Delete(ctx context.Context, key string, opts ...options.Option) error {
+func (r *Store) Delete(ctx context.Context, key string, opts ...store.DeleteOption) error {
-	if r.opts.Timeout > 0 {
+	options := store.NewDeleteOptions(opts...)
+
+	timeout := r.opts.Timeout
+	if options.Timeout > 0 {
+		timeout = options.Timeout
+	}
+
+	if timeout > 0 {
 		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, r.opts.Timeout)
+		ctx, cancel = context.WithTimeout(ctx, timeout)
 		defer cancel()
 	}
-	options := store.NewDeleteOptions(opts...)
+
-	if len(options.Namespace) == 0 {
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Inc()
-		options.Namespace = r.opts.Namespace
+	ts := time.Now()
+	var err error
+	if r.cli.Client != nil {
+		err = r.cli.Client.Del(ctx, r.getKey(r.opts.Namespace, options.Namespace, key)).Err()
+	} else {
+		err = r.cli.ClusterClient.Del(ctx, r.getKey(r.opts.Namespace, options.Namespace, key)).Err()
 	}
-	if options.Namespace == "" {
+	setSpanError(ctx, err)
-		return r.cli.Del(ctx, key).Err()
+	te := time.Since(ts)
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Dec()
+	r.opts.Meter.Summary(semconv.StoreRequestLatencyMicroseconds, "name", options.Name).Update(te.Seconds())
+	r.opts.Meter.Histogram(semconv.StoreRequestDurationSeconds, "name", options.Name).Update(te.Seconds())
+	if err == redis.Nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "miss").Inc()
+		return store.ErrNotFound
+	} else if err == nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "hit").Inc()
+	} else if err != nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "failure").Inc()
+		return err
 	}
-	return r.cli.Del(ctx, fmt.Sprintf("%s%s", options.Namespace, key)).Err()
+
+	return nil
 }
 
-func (r *Store) MWrite(ctx context.Context, keys []string, vals []interface{}, opts ...options.Option) error {
+func (r *Store) MWrite(ctx context.Context, keys []string, vals []interface{}, opts ...store.WriteOption) error {
-	if len(keys) == 1 {
-		return r.Write(ctx, keys[0], vals[0], opts...)
-	}
-	if r.opts.Timeout > 0 {
-		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, r.opts.Timeout)
-		defer cancel()
-	}
 	options := store.NewWriteOptions(opts...)
+
+	timeout := r.opts.Timeout
+	if options.Timeout > 0 {
+		timeout = options.Timeout
+	}
+
+	if timeout > 0 {
+		var cancel context.CancelFunc
+		ctx, cancel = context.WithTimeout(ctx, timeout)
+		defer cancel()
+	}
+
 	kvs := make([]string, 0, len(keys)*2)
 
-	if len(options.Namespace) == 0 {
-		options.Namespace = r.opts.Namespace
-	}
-
 	for idx, key := range keys {
-		if options.Namespace != "" {
+		kvs = append(kvs, r.getKey(r.opts.Namespace, options.Namespace, key))
-			kvs = append(kvs, fmt.Sprintf("%s%s", options.Namespace, key))
-		} else {
-			kvs = append(kvs, key)
-		}
 
 		switch vt := vals[idx].(type) {
 		case string:
@@ -232,21 +413,50 @@ func (r *Store) MWrite(ctx context.Context, keys []string, vals []interface{}, o
 		}
 	}
 
-	cmds, err := r.cli.Pipelined(ctx, func(pipe redis.Pipeliner) error {
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Inc()
-		var err error
+	ts := time.Now()
+
+	pipeliner := func(pipe redis.Pipeliner) error {
 		for idx := 0; idx < len(kvs); idx += 2 {
-			if _, err = pipe.Set(ctx, kvs[idx], kvs[idx+1], options.TTL).Result(); err != nil {
+			if _, err := pipe.Set(ctx, kvs[idx], kvs[idx+1], options.TTL).Result(); err != nil {
+				setSpanError(ctx, err)
 				return err
 			}
 		}
 		return nil
-	})
+	}
-	if err != nil {
+
+	var err error
+	var cmds []redis.Cmder
+
+	if r.cli.Client != nil {
+		cmds, err = r.cli.Client.Pipelined(ctx, pipeliner)
+	} else {
+		cmds, err = r.cli.ClusterClient.Pipelined(ctx, pipeliner)
+	}
+	setSpanError(ctx, err)
+	te := time.Since(ts)
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Dec()
+	r.opts.Meter.Summary(semconv.StoreRequestLatencyMicroseconds, "name", options.Name).Update(te.Seconds())
+	r.opts.Meter.Histogram(semconv.StoreRequestDurationSeconds, "name", options.Name).Update(te.Seconds())
+	if err == redis.Nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "miss").Inc()
+		return store.ErrNotFound
+	} else if err == nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "hit").Inc()
+	} else if err != nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "failure").Inc()
 		return err
 	}
 
 	for _, cmd := range cmds {
 		if err = cmd.Err(); err != nil {
+			if err == redis.Nil {
+				r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "miss").Inc()
+				return store.ErrNotFound
+			}
+			setSpanError(ctx, err)
+			r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "failure").Inc()
 			return err
 		}
 	}
@@ -254,17 +464,21 @@ func (r *Store) MWrite(ctx context.Context, keys []string, vals []interface{}, o
 	return nil
 }
 
-func (r *Store) Write(ctx context.Context, key string, val interface{}, opts ...options.Option) error {
+func (r *Store) Write(ctx context.Context, key string, val interface{}, opts ...store.WriteOption) error {
-	if r.opts.Timeout > 0 {
+	options := store.NewWriteOptions(opts...)
+
+	timeout := r.opts.Timeout
+	if options.Timeout > 0 {
+		timeout = options.Timeout
+	}
+
+	if timeout > 0 {
 		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, r.opts.Timeout)
+		ctx, cancel = context.WithTimeout(ctx, timeout)
 		defer cancel()
 	}
 
-	options := store.NewWriteOptions(opts...)
+	rkey := r.getKey(r.opts.Namespace, options.Namespace, key)
-	if len(options.Namespace) == 0 {
-		options.Namespace = r.opts.Namespace
-	}
 
 	var buf []byte
 	switch vt := val.(type) {
@@ -280,42 +494,100 @@ func (r *Store) Write(ctx context.Context, key string, val interface{}, opts ...
 		}
 	}
 
-	if options.Namespace != "" {
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Inc()
-		key = fmt.Sprintf("%s%s", options.Namespace, key)
+	ts := time.Now()
+	var err error
+	if r.cli.Client != nil {
+		err = r.cli.Client.Set(ctx, rkey, buf, options.TTL).Err()
+	} else {
+		err = r.cli.ClusterClient.Set(ctx, rkey, buf, options.TTL).Err()
+	}
+	setSpanError(ctx, err)
+	te := time.Since(ts)
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Dec()
+	r.opts.Meter.Summary(semconv.StoreRequestLatencyMicroseconds, "name", options.Name).Update(te.Seconds())
+	r.opts.Meter.Histogram(semconv.StoreRequestDurationSeconds, "name", options.Name).Update(te.Seconds())
+	if err == redis.Nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "miss").Inc()
+		return store.ErrNotFound
+	} else if err == nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "hit").Inc()
+	} else if err != nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "failure").Inc()
+		return err
 	}
 
-	return r.cli.Set(ctx, key, buf, options.TTL).Err()
+	return err
 }
 
-func (r *Store) List(ctx context.Context, opts ...options.Option) ([]string, error) {
+func (r *Store) List(ctx context.Context, opts ...store.ListOption) ([]string, error) {
 	options := store.NewListOptions(opts...)
 	if len(options.Namespace) == 0 {
 		options.Namespace = r.opts.Namespace
 	}
 
-	rkey := fmt.Sprintf("%s%s*", options.Namespace, options.Prefix)
+	rkey := r.getKey(options.Namespace, "", options.Prefix+"*")
 	if options.Suffix != "" {
 		rkey += options.Suffix
 	}
-	if r.opts.Timeout > 0 {
+
+	timeout := r.opts.Timeout
+	if options.Timeout > 0 {
+		timeout = options.Timeout
+	}
+
+	if timeout > 0 {
 		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, r.opts.Timeout)
+		ctx, cancel = context.WithTimeout(ctx, timeout)
 		defer cancel()
 	}
+
 	// TODO: add support for prefix/suffix/limit
-	keys, err := r.cli.Keys(ctx, rkey).Result()
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Inc()
-	if err != nil {
+	ts := time.Now()
+	var keys []string
+	var err error
+
+	if r.cli.Client != nil {
+		keys, err = r.cli.Client.Keys(ctx, rkey).Result()
+	} else {
+		err = r.cli.ClusterClient.ForEachMaster(ctx, func(nctx context.Context, cli *redis.Client) error {
+			nkeys, nerr := cli.Keys(nctx, rkey).Result()
+			if nerr != nil {
+				return nerr
+			}
+			keys = append(keys, nkeys...)
+			return nil
+		})
+	}
+	setSpanError(ctx, err)
+	te := time.Since(ts)
+	r.opts.Meter.Counter(semconv.StoreRequestInflight, "name", options.Name).Dec()
+	r.opts.Meter.Summary(semconv.StoreRequestLatencyMicroseconds, "name", options.Name).Update(te.Seconds())
+	r.opts.Meter.Histogram(semconv.StoreRequestDurationSeconds, "name", options.Name).Update(te.Seconds())
+	if err == redis.Nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "miss").Inc()
+		return nil, store.ErrNotFound
+	} else if err == nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "hit").Inc()
+	} else if err != nil {
+		r.opts.Meter.Counter(semconv.StoreRequestTotal, "name", options.Name, "status", "failure").Inc()
 		return nil, err
 	}
-	if options.Namespace == "" {
+
+	prefix := r.opts.Namespace
+	if options.Namespace != "" {
+		prefix = options.Namespace
+	}
+	if prefix == "" {
 		return keys, nil
 	}
 
-	nkeys := make([]string, 0, len(keys))
+	for idx, key := range keys {
-	for _, key := range keys {
+		keys[idx] = strings.TrimPrefix(key, prefix)
-		nkeys = append(nkeys, strings.TrimPrefix(key, options.Namespace))
 	}
-	return nkeys, nil
+
+	return keys, nil
 }
 
 func (r *Store) Options() store.Options {
@@ -330,60 +602,91 @@ func (r *Store) String() string {
 	return "redis"
 }
 
-func NewStore(opts ...options.Option) *Store {
+func NewStore(opts ...store.Option) *Store {
-	return &Store{opts: store.NewOptions(opts...)}
+	return &Store{done: make(chan struct{}), opts: store.NewOptions(opts...)}
 }
 
-func (r *Store) configure(opts ...options.Option) error {
+func (r *Store) configure() error {
-	if r.cli != nil && len(opts) == 0 {
+	var redisOptions *redis.Options
+	var redisClusterOptions *redis.ClusterOptions
+	var err error
+
+	nodes := r.opts.Addrs
+
+	if len(nodes) == 0 {
+		nodes = []string{"redis://127.0.0.1:6379"}
+	}
+
+	if r.cli != nil && r.opts.Context == nil {
 		return nil
 	}
 
-	var redisUniversalOptions *redis.UniversalOptions
-	var err error
-
-	for _, o := range opts {
-		if err = o(r.opts); err != nil {
-			return err
-		}
-	}
-
 	if r.opts.Context != nil {
-		if c, ok := r.opts.Context.Value(universalConfigKey{}).(*redis.UniversalOptions); ok {
+		if c, ok := r.opts.Context.Value(configKey{}).(*redis.Options); ok {
-			redisUniversalOptions = c
+			redisOptions = c
 			if r.opts.TLSConfig != nil {
-				redisUniversalOptions.TLSConfig = r.opts.TLSConfig
+				redisOptions.TLSConfig = r.opts.TLSConfig
+			}
+		}
+
+		if c, ok := r.opts.Context.Value(clusterConfigKey{}).(*redis.ClusterOptions); ok {
+			redisClusterOptions = c
+			if r.opts.TLSConfig != nil {
+				redisClusterOptions.TLSConfig = r.opts.TLSConfig
 			}
 		}
 	}
 
-	if redisUniversalOptions == nil && r.cli != nil {
+	if redisOptions != nil && redisClusterOptions != nil {
+		return fmt.Errorf("must specify only one option Config or ClusterConfig")
+	}
+
+	if redisOptions == nil && redisClusterOptions == nil && r.cli != nil {
 		return nil
 	}
 
-	if redisUniversalOptions == nil {
+	if redisOptions == nil && redisClusterOptions == nil && len(nodes) == 1 {
-		redisUniversalOptions = &redis.UniversalOptions{
+		redisOptions, err = redis.ParseURL(nodes[0])
-			Username:        "",
+		if err != nil {
-			Password:        "", // no password set
+			redisOptions = DefaultOptions
-			DB:              0,  // use default DB
+			redisOptions.Addr = r.opts.Addrs[0]
-			MaxRetries:      2,
+			redisOptions.TLSConfig = r.opts.TLSConfig
-			MaxRetryBackoff: 256 * time.Millisecond,
-			DialTimeout:     1 * time.Second,
-			ReadTimeout:     1 * time.Second,
-			WriteTimeout:    1 * time.Second,
-			PoolTimeout:     1 * time.Second,
-			MinIdleConns:    10,
-			TLSConfig:       r.opts.TLSConfig,
 		}
+	} else if redisOptions == nil && redisClusterOptions == nil && len(nodes) > 1 {
+		redisClusterOptions = DefaultClusterOptions
+		redisClusterOptions.Addrs = r.opts.Addrs
+		redisClusterOptions.TLSConfig = r.opts.TLSConfig
 	}
 
-	if len(r.opts.Address) > 0 {
+	if redisOptions != nil {
-		redisUniversalOptions.Addrs = r.opts.Address
+		c := redis.NewClient(redisOptions)
-	} else if len(redisUniversalOptions.Addrs) == 0 {
+		setTracing(c, r.opts.Tracer)
-		redisUniversalOptions.Addrs = []string{"redis://127.0.0.1:6379"}
+		r.cli = &wrappedClient{Client: c}
+	} else if redisClusterOptions != nil {
+		c := redis.NewClusterClient(redisClusterOptions)
+		setTracing(c, r.opts.Tracer)
+		r.cli = &wrappedClient{ClusterClient: c}
 	}
 
-	r.cli = redis.NewUniversalClient(redisUniversalOptions)
+	r.pool = pool.NewPool(func() *strings.Builder { return &strings.Builder{} })
+
+	r.statsMeter()
 
 	return nil
 }
+
+func (r *Store) getKey(mainNamespace string, opNamespace string, key string) string {
+	b := r.pool.Get()
+	defer r.pool.Put(b)
+	b.Reset()
+
+	if opNamespace == "" {
+		opNamespace = mainNamespace
+	}
+	if opNamespace != "" {
+		b.WriteString(opNamespace)
+		b.WriteString(DefaultPathSeparator)
+	}
+	b.WriteString(key)
+	return b.String()
+}

redis_test.go

@@ -7,15 +7,41 @@ import (
 	"testing"
 	"time"
 
-	"github.com/redis/go-redis/v9"
+	"go.unistack.org/micro/v3/store"
-	"go.unistack.org/micro/v4/options"
+	"go.unistack.org/micro/v3/tracer"
-	"go.unistack.org/micro/v4/store"
 )
 
+func TestKeepTTL(t *testing.T) {
+	ctx := context.Background()
+
+	if tr := os.Getenv("INTEGRATION_TESTS"); len(tr) > 0 {
+		t.Skip()
+	}
+	r := NewStore(store.Addrs(os.Getenv("STORE_NODES")))
+
+	if err := r.Init(); err != nil {
+		t.Fatal(err)
+	}
+	if err := r.Connect(ctx); err != nil {
+		t.Fatal(err)
+	}
+
+	key := "key"
+	err := r.Write(ctx, key, "val1", store.WriteTTL(15*time.Second))
+	if err != nil {
+		t.Fatalf("Write error: %v", err)
+	}
+	time.Sleep(3 * time.Second)
+	err = r.Write(ctx, key, "val2", store.WriteTTL(-1))
+	if err != nil {
+		t.Fatalf("Write error: %v", err)
+	}
+}
+
 func Test_rkv_configure(t *testing.T) {
 	type fields struct {
 		options store.Options
-		Client  *redis.Client
+		Client  *wrappedClient
 	}
 	type wantValues struct {
 		username string
@@ -38,7 +64,7 @@ func Test_rkv_configure(t *testing.T) {
 			},
 		},
 		{
-			name: "legacy Url", fields: fields{options: store.Options{Address: []string{"127.0.0.1:6379"}}, Client: nil},
+			name: "legacy Url", fields: fields{options: store.Options{Tracer: tracer.DefaultTracer, Addrs: []string{"127.0.0.1:6379"}}, Client: nil},
 			wantErr: false, want: wantValues{
 				username: "",
 				password: "",
@@ -46,7 +72,7 @@ func Test_rkv_configure(t *testing.T) {
 			},
 		},
 		{
-			name: "New Url", fields: fields{options: store.Options{Address: []string{"redis://127.0.0.1:6379"}}, Client: nil},
+			name: "New Url", fields: fields{options: store.Options{Tracer: tracer.DefaultTracer, Addrs: []string{"redis://127.0.0.1:6379"}}, Client: nil},
 			wantErr: false, want: wantValues{
 				username: "",
 				password: "",
@@ -54,7 +80,7 @@ func Test_rkv_configure(t *testing.T) {
 			},
 		},
 		{
-			name: "Url with Pwd", fields: fields{options: store.Options{Address: []string{"redis://:password@redis:6379"}}, Client: nil},
+			name: "Url with Pwd", fields: fields{options: store.Options{Tracer: tracer.DefaultTracer, Addrs: []string{"redis://:password@redis:6379"}}, Client: nil},
 			wantErr: false, want: wantValues{
 				username: "",
 				password: "password",
@@ -62,7 +88,7 @@ func Test_rkv_configure(t *testing.T) {
 			},
 		},
 		{
-			name: "Url with username and Pwd", fields: fields{options: store.Options{Address: []string{"redis://username:password@redis:6379"}}, Client: nil},
+			name: "Url with username and Pwd", fields: fields{options: store.Options{Tracer: tracer.DefaultTracer, Addrs: []string{"redis://username:password@redis:6379"}}, Client: nil},
 			wantErr: false, want: wantValues{
 				username: "username",
 				password: "password",
@@ -91,7 +117,7 @@ func Test_Store(t *testing.T) {
 	if tr := os.Getenv("INTEGRATION_TESTS"); len(tr) > 0 {
 		t.Skip()
 	}
-	r := NewStore(options.Address(os.Getenv("STORE_NODES")))
+	r := NewStore(store.Addrs(os.Getenv("STORE_NODES")))
 
 	if err := r.Init(); err != nil {
 		t.Fatal(err)
@@ -131,7 +157,7 @@ func Test_MRead(t *testing.T) {
 	if tr := os.Getenv("INTEGRATION_TESTS"); len(tr) > 0 {
 		t.Skip()
 	}
-	r := NewStore(options.Address(os.Getenv("STORE_NODES")))
+	r := NewStore(store.Addrs(os.Getenv("STORE_NODES")))
 
 	if err = r.Init(); err != nil {
 		t.Fatal(err)

stats.go

@@ -0,0 +1,57 @@
+package redis
+
+import (
+	"time"
+
+	"github.com/redis/go-redis/v9"
+)
+
+var (
+	PoolHitsTotal        = "pool_hits_total"
+	PoolMissesTotal      = "pool_misses_total"
+	PoolTimeoutTotal     = "pool_timeout_total"
+	PoolConnTotalCurrent = "pool_conn_total_current"
+	PoolConnIdleCurrent  = "pool_conn_idle_current"
+	PoolConnStaleTotal   = "pool_conn_stale_total"
+
+	meterRequestTotal               = "request_total"
+	meterRequestLatencyMicroseconds = "latency_microseconds"
+	meterRequestDurationSeconds     = "request_duration_seconds"
+)
+
+type Statser interface {
+	PoolStats() *redis.PoolStats
+}
+
+func (r *Store) statsMeter() {
+	var st Statser
+
+	if r.cli.Client != nil {
+		st = r.cli.Client
+	} else if r.cli.ClusterClient != nil {
+		st = r.cli.ClusterClient
+	} else {
+		return
+	}
+
+	go func() {
+		ticker := time.NewTicker(DefaultMeterStatsInterval)
+		defer ticker.Stop()
+
+		for {
+			select {
+			case <-ticker.C:
+				if st == nil {
+					return
+				}
+				stats := st.PoolStats()
+				r.opts.Meter.Counter(PoolHitsTotal).Set(uint64(stats.Hits))
+				r.opts.Meter.Counter(PoolMissesTotal).Set(uint64(stats.Misses))
+				r.opts.Meter.Counter(PoolTimeoutTotal).Set(uint64(stats.Timeouts))
+				r.opts.Meter.Counter(PoolConnTotalCurrent).Set(uint64(stats.TotalConns))
+				r.opts.Meter.Counter(PoolConnIdleCurrent).Set(uint64(stats.IdleConns))
+				r.opts.Meter.Counter(PoolConnStaleTotal).Set(uint64(stats.StaleConns))
+			}
+		}
+	}()
+}

tracer.go

@@ -0,0 +1,121 @@
+package redis
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"strconv"
+
+	"github.com/redis/go-redis/extra/rediscmd/v9"
+	"github.com/redis/go-redis/v9"
+	"go.unistack.org/micro/v3/tracer"
+)
+
+func setTracing(rdb redis.UniversalClient, tr tracer.Tracer, opts ...tracer.SpanOption) {
+	switch rdb := rdb.(type) {
+	case *redis.Client:
+		opt := rdb.Options()
+		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)
+			rdb.AddHook(newTracingHook(connString, tr))
+		})
+	}
+}
+
+type tracingHook struct {
+	tr   tracer.Tracer
+	opts []tracer.SpanOption
+}
+
+var _ redis.Hook = (*tracingHook)(nil)
+
+func newTracingHook(connString string, tr tracer.Tracer, opts ...tracer.SpanOption) *tracingHook {
+	opts = append(opts, tracer.WithSpanKind(tracer.SpanKindClient))
+	if connString != "" {
+		opts = append(opts, tracer.WithSpanLabels("db.connection_string", connString))
+	}
+
+	return &tracingHook{
+		tr:   tr,
+		opts: opts,
+	}
+}
+
+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()
+
+		conn, err := hook(ctx, network, addr)
+		recordError(span, err)
+
+		return conn, err
+	}
+}
+
+func (h *tracingHook) ProcessHook(hook redis.ProcessHook) redis.ProcessHook {
+	return func(ctx context.Context, cmd redis.Cmder) error {
+		cmdString := rediscmd.CmdString(cmd)
+
+		_, span := h.tr.Start(ctx, "redis.process", append(h.opts, tracer.WithSpanLabels("db.statement", cmdString))...)
+		defer span.Finish()
+
+		err := hook(ctx, cmd)
+		recordError(span, err)
+
+		return err
+	}
+}
+
+func (h *tracingHook) ProcessPipelineHook(hook redis.ProcessPipelineHook) redis.ProcessPipelineHook {
+	return func(ctx context.Context, cmds []redis.Cmder) error {
+		_, cmdsString := rediscmd.CmdsString(cmds)
+
+		opts := append(h.opts, tracer.WithSpanLabels(
+			"db.redis.num_cmd", strconv.Itoa(len(cmds)),
+			"db.statement", cmdsString,
+		))
+
+		_, span := h.tr.Start(ctx, "redis.process_pipeline", opts...)
+		defer span.Finish()
+
+		err := hook(ctx, cmds)
+		recordError(span, err)
+
+		return err
+	}
+}
+
+func setSpanError(ctx context.Context, err error) {
+	if err == nil || err == redis.Nil {
+		return
+	}
+	if sp, ok := tracer.SpanFromContext(ctx); !ok && sp != nil {
+		sp.SetStatus(tracer.SpanStatusError, err.Error())
+	}
+}
+
+func recordError(span tracer.Span, err error) {
+	if err != nil && err != redis.Nil {
+		span.SetStatus(tracer.SpanStatusError, err.Error())
+	}
+}
+
+func formatDBConnString(network, addr string) string {
+	if network == "tcp" {
+		network = "redis"
+	}
+	return fmt.Sprintf("%s://%s", network, addr)
+}