[bugfix] resolve agent kvsdb already closed before last saving

Makefile

@@ -369,6 +369,7 @@ clean-generated:
 	mv $(ROOTDIR)/apis/grpc/v1/vald/vald.go $(TEMP_DIR)/vald.go
 	mv $(ROOTDIR)/apis/grpc/v1/agent/core/agent.go $(TEMP_DIR)/agent.go
 	mv $(ROOTDIR)/apis/grpc/v1/payload/interface.go $(TEMP_DIR)/interface.go
+	mv $(ROOTDIR)/apis/grpc/v1/mirror/mirror.go $(TEMP_DIR)/mirror.go
 	rm -rf \
 		$(ROOTDIR)/*.log \
 		$(ROOTDIR)/*.svg \
@@ -384,6 +385,8 @@ clean-generated:
 	mv $(TEMP_DIR)/agent.go $(ROOTDIR)/apis/grpc/v1/agent/core/agent.go
 	mkdir -p $(ROOTDIR)/apis/grpc/v1/payload
 	mv $(TEMP_DIR)/interface.go $(ROOTDIR)/apis/grpc/v1/payload/interface.go
+	mkdir -p $(ROOTDIR)/apis/grpc/v1/mirror
+	mv $(TEMP_DIR)/mirror.go $(ROOTDIR)/apis/grpc/v1/mirror/mirror.go
 
 .PHONY: license
 ## add license to files

go.mod

@@ -44,13 +44,13 @@ replace (
 	github.com/akrylysov/pogreb => github.com/akrylysov/pogreb v0.10.2
 	github.com/antihax/optional => github.com/antihax/optional v1.0.0
 	github.com/armon/go-socks5 => github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5
-	github.com/aws/aws-sdk-go => github.com/aws/aws-sdk-go v1.50.20
+	github.com/aws/aws-sdk-go => github.com/aws/aws-sdk-go v1.50.21
 	github.com/aws/aws-sdk-go-v2 => github.com/aws/aws-sdk-go-v2 v1.25.0
 	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream => github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.6.0
 	github.com/aws/aws-sdk-go-v2/config => github.com/aws/aws-sdk-go-v2/config v1.27.0
 	github.com/aws/aws-sdk-go-v2/credentials => github.com/aws/aws-sdk-go-v2/credentials v1.17.0
 	github.com/aws/aws-sdk-go-v2/feature/ec2/imds => github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.15.0
-	github.com/aws/aws-sdk-go-v2/feature/s3/manager => github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.16.1
+	github.com/aws/aws-sdk-go-v2/feature/s3/manager => github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.16.2
 	github.com/aws/aws-sdk-go-v2/internal/configsources => github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.0
 	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 => github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.0
 	github.com/aws/aws-sdk-go-v2/internal/ini => github.com/aws/aws-sdk-go-v2/internal/ini v1.8.0
@@ -59,7 +59,7 @@ replace (
 	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url => github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.0
 	github.com/aws/aws-sdk-go-v2/service/internal/s3shared => github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.17.0
 	github.com/aws/aws-sdk-go-v2/service/kms => github.com/aws/aws-sdk-go-v2/service/kms v1.28.1
-	github.com/aws/aws-sdk-go-v2/service/s3 => github.com/aws/aws-sdk-go-v2/service/s3 v1.50.0
+	github.com/aws/aws-sdk-go-v2/service/s3 => github.com/aws/aws-sdk-go-v2/service/s3 v1.50.1
 	github.com/aws/aws-sdk-go-v2/service/secretsmanager => github.com/aws/aws-sdk-go-v2/service/secretsmanager v1.27.1
 	github.com/aws/aws-sdk-go-v2/service/sns => github.com/aws/aws-sdk-go-v2/service/sns v1.28.0
 	github.com/aws/aws-sdk-go-v2/service/sqs => github.com/aws/aws-sdk-go-v2/service/sqs v1.30.1

go.sum

@@ -185,8 +185,8 @@ github.com/apache/arrow/go/v14 v14.0.2/go.mod h1:u3fgh3EdgN/YQ8cVQRguVW3R+seMybF
 github.com/apache/thrift v0.17.0/go.mod h1:OLxhMRJxomX+1I/KUw03qoV3mMz16BwaKI+d4fPBx7Q=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
-github.com/aws/aws-sdk-go v1.50.20 h1:xfAnSDVf/azIWTVQXQODp89bubvCS85r70O3nuQ4dnE=
-github.com/aws/aws-sdk-go v1.50.20/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
+github.com/aws/aws-sdk-go v1.50.21 h1:W8awpwiInOt4qHQE6JghRYQJhHcf/cDJS3mlZYqioSQ=
+github.com/aws/aws-sdk-go v1.50.21/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
 github.com/aws/aws-sdk-go-v2 v1.25.0 h1:sv7+1JVJxOu/dD/sz/csHX7jFqmP001TIY7aytBWDSQ=
 github.com/aws/aws-sdk-go-v2 v1.25.0/go.mod h1:G104G1Aho5WqF+SR3mDIobTABQzpYV0WxMsKxlMggOA=
 github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.6.0 h1:2UO6/nT1lCZq1LqM67Oa4tdgP1CvL1sLSxvuD+VrOeE=
@@ -197,8 +197,8 @@ github.com/aws/aws-sdk-go-v2/credentials v1.17.0 h1:lMW2x6sKBsiAJrpi1doOXqWFyEPo
 github.com/aws/aws-sdk-go-v2/credentials v1.17.0/go.mod h1:uT41FIH8cCIxOdUYIL0PYyHlL1NoneDuDSCwg5VE/5o=
 github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.15.0 h1:xWCwjjvVz2ojYTP4kBKUuUh9ZrXfcAXpflhOUUeXg1k=
 github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.15.0/go.mod h1:j3fACuqXg4oMTQOR2yY7m0NmJY0yBK4L4sLsRXq1Ins=
-github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.16.1 h1:FqtJUSBgT2yfZ8kZhTi9AO131qMLOzb4MiH4riAM8XM=
-github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.16.1/go.mod h1:G3V4qNUPMHKrXW/l149QXmHjf1vlMWBO4UuGPCK4a/c=
+github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.16.2 h1:VEekE/fJWqAWYozxFQ07B+h8NdvTPAYhV13xIBenuO0=
+github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.16.2/go.mod h1:8vozqAHmDNmoD4YbuDKIfpnLbByzngczL4My1RELLVo=
 github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.0 h1:NPs/EqVO+ajwOoq56EfcGKa3L3ruWuazkIw1BqxwOPw=
 github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.0/go.mod h1:D+duLy2ylgatV+yTlQ8JTuLfDD0BnFvnQRc+o6tbZ4M=
 github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.0 h1:ks7KGMVUMoDzcxNWUlEdI+/lokMFD136EL6DWmUOV80=
@@ -215,8 +215,8 @@ github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.0 h1:SHN/umDLT
 github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.0/go.mod h1:l8gPU5RYGOFHJqWEpPMoRTP0VoaWQSkJdKo+hwWnnDA=
 github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.17.0 h1:l5puwOHr7IxECuPMIuZG7UKOzAnF24v6t4l+Z5Moay4=
 github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.17.0/go.mod h1:Oov79flWa/n7Ni+lQC3z+VM7PoRM47omRqbJU9B5Y7E=
-github.com/aws/aws-sdk-go-v2/service/s3 v1.50.0 h1:jZAdMD1ioZdqirzzVVRhpHHWJmcGGCn8JqDYBs5nmYA=
-github.com/aws/aws-sdk-go-v2/service/s3 v1.50.0/go.mod h1:1o/W6JFUuREj2ExoQ21vHJgO7wakvjhol91M9eknFgs=
+github.com/aws/aws-sdk-go-v2/service/s3 v1.50.1 h1:bjpWJEXch7moIt3PX2r5XpGROsletl7enqG1Q3Te1Dc=
+github.com/aws/aws-sdk-go-v2/service/s3 v1.50.1/go.mod h1:1o/W6JFUuREj2ExoQ21vHJgO7wakvjhol91M9eknFgs=
 github.com/aws/aws-sdk-go-v2/service/sso v1.19.0 h1:u6OkVDxtBPnxPkZ9/63ynEe+8kHbtS5IfaC4PzVxzWM=
 github.com/aws/aws-sdk-go-v2/service/sso v1.19.0/go.mod h1:YqbU3RS/pkDVu+v+Nwxvn0i1WB0HkNWEePWbmODEbbs=
 github.com/aws/aws-sdk-go-v2/service/ssooidc v1.21.5 h1:2k9KmFawS63euAkY4/ixVNsYYwrwnd5fIvgEKkfZFNM=

internal/core/algorithm/ngt/ngt.go

@@ -19,7 +19,7 @@
 
 /*
 #cgo LDFLAGS: -lngt
 #include <NGT/Capi.h>
 #include <stdlib.h>
 */
 import "C"
@@ -710,9 +710,7 @@
 		return n.newGoError(ne)
 	}
 	n.PutErrorBuffer(ne)
-
 	n.cnt.Add(^uint64(0))
-
 	return nil
 }
 

pkg/agent/core/ngt/service/ngt.go

@@ -1697,8 +1697,11 @@
 
 func (n *ngt) UUIDs(ctx context.Context) (uuids []string) {
 	uuids = make([]string, 0, n.kvs.Len())
+	var mu sync.Mutex
 	n.kvs.Range(ctx, func(uuid string, oid uint32, _ int64) bool {
+		mu.Lock()
 		uuids = append(uuids, uuid)
+		mu.Unlock()
 		return true
 	})
 	return uuids
@@ -1741,8 +1744,18 @@
 
 func (n *ngt) Close(ctx context.Context) (err error) {
 	defer n.core.Close()
-
-	err = n.kvs.Close()
+	defer func() {
+		kerr := n.kvs.Close()
+		if kerr != nil &&
+			!errors.Is(err, context.Canceled) &&
+			!errors.Is(err, context.DeadlineExceeded) {
+			if err != nil {
+				err = errors.Join(kerr, err)
+			} else {
+				err = kerr
+			}
+		}
+	}()
 	if len(n.path) != 0 {
 		if n.isReadReplica {
 			log.Info("skip create and save index operation on close because this is read replica")

pkg/agent/internal/kvs/kvs.go

@@ -20,6 +20,8 @@ import (
 	"context"
 	"sync/atomic"
 
+	"github.com/vdaas/vald/internal/errors"
+	"github.com/vdaas/vald/internal/log"
 	"github.com/vdaas/vald/internal/safety"
 	"github.com/vdaas/vald/internal/sync"
 	"github.com/vdaas/vald/internal/sync/errgroup"
@@ -53,7 +55,6 @@ type bidi struct {
 	l           uint64
 	ou          [slen]*sync.Map[uint32, valueStructOu]
 	uo          [slen]*sync.Map[string, ValueStructUo]
-	eg          errgroup.Group
 }
 
 const (
@@ -79,14 +80,6 @@ func New(opts ...Option) BidiMap {
 		b.uo[i] = new(sync.Map[string, ValueStructUo])
 	}
 
-	if b.eg == nil {
-		b.eg, _ = errgroup.New(context.Background())
-	}
-
-	if b.concurrency > 0 {
-		b.eg.SetLimit(b.concurrency)
-	}
-
 	return b
 }
 
@@ -151,24 +144,33 @@ func (b *bidi) DeleteInverse(val uint32) (key string, ok bool) {
 
 // Range retrieves all set keys and values and calls the callback function f.
 func (b *bidi) Range(ctx context.Context, f func(string, uint32, int64) bool) {
-	var wg sync.WaitGroup
+	eg, ctx := errgroup.New(ctx)
+	if b.concurrency > 0 {
+		eg.SetLimit(b.concurrency)
+	}
 	for i := range b.uo {
 		idx := i
-		wg.Add(1)
-		b.eg.Go(safety.RecoverFunc(func() (err error) {
+		eg.Go(safety.RecoverFunc(func() (err error) {
 			b.uo[idx].Range(func(uuid string, val ValueStructUo) bool {
 				select {
 				case <-ctx.Done():
+					err = ctx.Err()
 					return false
 				default:
 					return f(uuid, val.value, val.timestamp)
 				}
 			})
-			wg.Done()
+			if err != nil &&
+				(errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded)) {
+				return err
+			}
 			return nil
 		}))
 	}
-	wg.Wait()
+	err := eg.Wait()
+	if err != nil {
+		log.Error(err)
+	}
 }
 
 // Len returns the length of the cache that is set in the bidi.
@@ -180,10 +182,7 @@ func (b *bidi) Len() uint64 {
 }
 
 func (b *bidi) Close() error {
-	if b == nil {
-		return nil
-	}
-	return b.eg.Wait()
+	return nil
 }
 
 func getShardID(key string) (id uint64) {

pkg/agent/internal/kvs/kvs_test.go

@@ -66,7 +66,6 @@ func TestNew(t *testing.T) {
 						l:           0,
 						ou:          wantOu,
 						uo:          wantUo,
-						eg:          errgroup.Get(),
 					},
 				},
 			}
@@ -1676,12 +1675,10 @@ func Test_bidi_Range(t *testing.T) {
 			defer goleak.VerifyNone(tt, goleak.IgnoreCurrent())
 			ctx, cancel := context.WithCancel(context.Background())
 			defer cancel()
-			eg, egctx := errgroup.New(ctx)
 			b := &bidi{
 				ou: test.fields.ou,
 				uo: test.fields.uo,
 				l:  test.fields.l,
-				eg: eg,
 			}
 			if test.beforeFunc != nil {
 				test.beforeFunc(tt, test.args, b)
@@ -1694,7 +1691,7 @@ func Test_bidi_Range(t *testing.T) {
 				checkFunc = defaultCheckFunc
 			}
 
-			b.Range(egctx, test.args.f)
+			b.Range(ctx, test.args.f)
 			if err := checkFunc(test.want, b); err != nil {
 				tt.Errorf("error = %v", err)
 			}
@@ -1791,7 +1788,6 @@ func Test_bidi_Len(t *testing.T) {
 // 		l           uint64
 // 		ou          [slen]*sync.Map[uint32, valueStructOu]
 // 		uo          [slen]*sync.Map[string, ValueStructUo]
-// 		eg          errgroup.Group
 // 	}
 // 	type want struct {
 // 		err error
@@ -1820,7 +1816,6 @@ func Test_bidi_Len(t *testing.T) {
 // 		           l:0,
 // 		           ou:nil,
 // 		           uo:nil,
-// 		           eg:nil,
 // 		       },
 // 		       want: want{},
 // 		       checkFunc: defaultCheckFunc,
@@ -1843,7 +1838,6 @@ func Test_bidi_Len(t *testing.T) {
 // 		           l:0,
 // 		           ou:nil,
 // 		           uo:nil,
-// 		           eg:nil,
 // 		           },
 // 		           want: want{},
 // 		           checkFunc: defaultCheckFunc,
@@ -1878,7 +1872,6 @@ func Test_bidi_Len(t *testing.T) {
 // 				l:           test.fields.l,
 // 				ou:          test.fields.ou,
 // 				uo:          test.fields.uo,
-// 				eg:          test.fields.eg,
 // 			}
 //
 // 			err := b.Close()

pkg/agent/internal/kvs/option.go

@@ -18,8 +18,6 @@ package kvs
 
 import (
 	"runtime"
-
-	"github.com/vdaas/vald/internal/sync/errgroup"
 )
 
 // Option represents the functional option for bidi.
@@ -29,15 +27,6 @@ var defaultOptions = []Option{
 	WithConcurrency(runtime.GOMAXPROCS(-1) * 10),
 }
 
-// WithErrGroup returns the option to set the errgroup.
-func WithErrGroup(eg errgroup.Group) Option {
-	return func(b *bidi) {
-		if eg != nil {
-			b.eg = eg
-		}
-	}
-}
-
 // WithConcurrency returns the option to set the concurrency.
 func WithConcurrency(c int) Option {
 	return func(b *bidi) {

pkg/agent/internal/kvs/option_test.go

@@ -18,92 +18,6 @@ package kvs
 
 // NOT IMPLEMENTED BELOW
 //
-// func TestWithErrGroup(t *testing.T) {
-// 	type args struct {
-// 		eg errgroup.Group
-// 	}
-// 	type want struct {
-// 		want Option
-// 	}
-// 	type test struct {
-// 		name       string
-// 		args       args
-// 		want       want
-// 		checkFunc  func(want, Option) error
-// 		beforeFunc func(*testing.T, args)
-// 		afterFunc  func(*testing.T, args)
-// 	}
-// 	defaultCheckFunc := func(w want, got Option) error {
-// 		if !reflect.DeepEqual(got, w.want) {
-// 			return errors.Errorf("got: \"%#v\",\n\t\t\t\twant: \"%#v\"", got, w.want)
-// 		}
-// 		return nil
-// 	}
-// 	tests := []test{
-// 		// TODO test cases
-// 		/*
-// 		   {
-// 		       name: "test_case_1",
-// 		       args: args {
-// 		           eg:nil,
-// 		       },
-// 		       want: want{},
-// 		       checkFunc: defaultCheckFunc,
-// 		       beforeFunc: func(t *testing.T, args args) {
-// 		           t.Helper()
-// 		       },
-// 		       afterFunc: func(t *testing.T, args args) {
-// 		           t.Helper()
-// 		       },
-// 		   },
-// 		*/
-//
-// 		// TODO test cases
-// 		/*
-// 		   func() test {
-// 		       return test {
-// 		           name: "test_case_2",
-// 		           args: args {
-// 		           eg:nil,
-// 		           },
-// 		           want: want{},
-// 		           checkFunc: defaultCheckFunc,
-// 		           beforeFunc: func(t *testing.T, args args) {
-// 		               t.Helper()
-// 		           },
-// 		           afterFunc: func(t *testing.T, args args) {
-// 		               t.Helper()
-// 		           },
-// 		       }
-// 		   }(),
-// 		*/
-// 	}
-//
-// 	for _, tc := range tests {
-// 		test := tc
-// 		t.Run(test.name, func(tt *testing.T) {
-// 			tt.Parallel()
-// 			defer goleak.VerifyNone(tt, goleak.IgnoreCurrent())
-// 			if test.beforeFunc != nil {
-// 				test.beforeFunc(tt, test.args)
-// 			}
-// 			if test.afterFunc != nil {
-// 				defer test.afterFunc(tt, test.args)
-// 			}
-// 			checkFunc := test.checkFunc
-// 			if test.checkFunc == nil {
-// 				checkFunc = defaultCheckFunc
-// 			}
-//
-// 			got := WithErrGroup(test.args.eg)
-// 			if err := checkFunc(test.want, got); err != nil {
-// 				tt.Errorf("error = %v", err)
-// 			}
-//
-// 		})
-// 	}
-// }
-//
 // func TestWithConcurrency(t *testing.T) {
 // 	type args struct {
 // 		c int