Port ListBuckets to websockets layer & some cleanup (#19199)

2024-12-24 06:05:55 -05:00 · 2024-03-08 20:08:18 +01:00 · 2024-03-08 20:08:18 +01:00 · 51f62a8da3
commit 51f62a8da3
parent 650efc2e96
15 changed files with 2783 additions and 184 deletions
--- a/cmd/handler-utils.go
+++ b/cmd/handler-utils.go
@ -366,12 +366,6 @@ func errorResponseHandler(w http.ResponseWriter, r *http.Request) {
 	}
 	desc := "Do not upgrade one server at a time - please follow the recommended guidelines mentioned here https://github.com/minio/minio#upgrading-minio for your environment"
 	switch {
-	case strings.HasPrefix(r.URL.Path, peerS3Prefix):
-		writeErrorResponseString(r.Context(), w, APIError{
-			Code:           "XMinioPeerS3VersionMismatch",
-			Description:    desc,
-			HTTPStatusCode: http.StatusUpgradeRequired,
-		}, r.URL)
 	case strings.HasPrefix(r.URL.Path, peerRESTPrefix):
 		writeErrorResponseString(r.Context(), w, APIError{
 			Code:           "XMinioPeerVersionMismatch",
--- a/cmd/object-api-datatypes.go
+++ b/cmd/object-api-datatypes.go
@ -30,6 +30,8 @@ import (
 	"github.com/minio/minio/internal/logger"
 )

+//go:generate msgp -file $GOFILE -io=false -tests=false -unexported=false
+
 // BackendType - represents different backend types.
 type BackendType int

@ -187,9 +189,9 @@ type ObjectInfo struct {
 	Parts []ObjectPartInfo `json:"-"`

 	// Implements writer and reader used by CopyObject API
-	Writer       io.WriteCloser `json:"-"`
-	Reader       *hash.Reader   `json:"-"`
-	PutObjReader *PutObjReader  `json:"-"`
+	Writer       io.WriteCloser `json:"-" msg:"-"`
+	Reader       *hash.Reader   `json:"-" msg:"-"`
+	PutObjReader *PutObjReader  `json:"-" msg:"-"`

 	metadataOnly bool
 	versionOnly  bool // adds a new version, only used by CopyObject
--- a/cmd/object-api-datatypes_gen.go
+++ b/cmd/object-api-datatypes_gen.go
--- a/cmd/object-api-interface.go
+++ b/cmd/object-api-interface.go
@ -32,6 +32,10 @@ import (
 	xioutil "github.com/minio/minio/internal/ioutil"
 )

+//go:generate msgp -file $GOFILE -io=false -tests=false -unexported=false
+
+//msgp:ignore ObjectOptions TransitionOptions DeleteBucketOptions
+
 // CheckPreconditionFn returns true if precondition check failed.
 type CheckPreconditionFn func(o ObjectInfo) bool

--- a/cmd/object-api-interface_gen.go
+++ b/cmd/object-api-interface_gen.go
@ -0,0 +1,319 @@
+package cmd
+
+// Code generated by github.com/tinylib/msgp DO NOT EDIT.
+
+import (
+	"github.com/tinylib/msgp/msgp"
+)
+
+// MarshalMsg implements msgp.Marshaler
+func (z BucketOptions) MarshalMsg(b []byte) (o []byte, err error) {
+	o = msgp.Require(b, z.Msgsize())
+	// map header, size 2
+	// string "Deleted"
+	o = append(o, 0x82, 0xa7, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x64)
+	o = msgp.AppendBool(o, z.Deleted)
+	// string "Cached"
+	o = append(o, 0xa6, 0x43, 0x61, 0x63, 0x68, 0x65, 0x64)
+	o = msgp.AppendBool(o, z.Cached)
+	return
+}
+
+// UnmarshalMsg implements msgp.Unmarshaler
+func (z *BucketOptions) UnmarshalMsg(bts []byte) (o []byte, err error) {
+	var field []byte
+	_ = field
+	var zb0001 uint32
+	zb0001, bts, err = msgp.ReadMapHeaderBytes(bts)
+	if err != nil {
+		err = msgp.WrapError(err)
+		return
+	}
+	for zb0001 > 0 {
+		zb0001--
+		field, bts, err = msgp.ReadMapKeyZC(bts)
+		if err != nil {
+			err = msgp.WrapError(err)
+			return
+		}
+		switch msgp.UnsafeString(field) {
+		case "Deleted":
+			z.Deleted, bts, err = msgp.ReadBoolBytes(bts)
+			if err != nil {
+				err = msgp.WrapError(err, "Deleted")
+				return
+			}
+		case "Cached":
+			z.Cached, bts, err = msgp.ReadBoolBytes(bts)
+			if err != nil {
+				err = msgp.WrapError(err, "Cached")
+				return
+			}
+		default:
+			bts, err = msgp.Skip(bts)
+			if err != nil {
+				err = msgp.WrapError(err)
+				return
+			}
+		}
+	}
+	o = bts
+	return
+}
+
+// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
+func (z BucketOptions) Msgsize() (s int) {
+	s = 1 + 8 + msgp.BoolSize + 7 + msgp.BoolSize
+	return
+}
+
+// MarshalMsg implements msgp.Marshaler
+func (z ExpirationOptions) MarshalMsg(b []byte) (o []byte, err error) {
+	o = msgp.Require(b, z.Msgsize())
+	// map header, size 1
+	// string "Expire"
+	o = append(o, 0x81, 0xa6, 0x45, 0x78, 0x70, 0x69, 0x72, 0x65)
+	o = msgp.AppendBool(o, z.Expire)
+	return
+}
+
+// UnmarshalMsg implements msgp.Unmarshaler
+func (z *ExpirationOptions) UnmarshalMsg(bts []byte) (o []byte, err error) {
+	var field []byte
+	_ = field
+	var zb0001 uint32
+	zb0001, bts, err = msgp.ReadMapHeaderBytes(bts)
+	if err != nil {
+		err = msgp.WrapError(err)
+		return
+	}
+	for zb0001 > 0 {
+		zb0001--
+		field, bts, err = msgp.ReadMapKeyZC(bts)
+		if err != nil {
+			err = msgp.WrapError(err)
+			return
+		}
+		switch msgp.UnsafeString(field) {
+		case "Expire":
+			z.Expire, bts, err = msgp.ReadBoolBytes(bts)
+			if err != nil {
+				err = msgp.WrapError(err, "Expire")
+				return
+			}
+		default:
+			bts, err = msgp.Skip(bts)
+			if err != nil {
+				err = msgp.WrapError(err)
+				return
+			}
+		}
+	}
+	o = bts
+	return
+}
+
+// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
+func (z ExpirationOptions) Msgsize() (s int) {
+	s = 1 + 7 + msgp.BoolSize
+	return
+}
+
+// MarshalMsg implements msgp.Marshaler
+func (z *MakeBucketOptions) MarshalMsg(b []byte) (o []byte, err error) {
+	o = msgp.Require(b, z.Msgsize())
+	// map header, size 5
+	// string "LockEnabled"
+	o = append(o, 0x85, 0xab, 0x4c, 0x6f, 0x63, 0x6b, 0x45, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64)
+	o = msgp.AppendBool(o, z.LockEnabled)
+	// string "VersioningEnabled"
+	o = append(o, 0xb1, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x69, 0x6e, 0x67, 0x45, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64)
+	o = msgp.AppendBool(o, z.VersioningEnabled)
+	// string "ForceCreate"
+	o = append(o, 0xab, 0x46, 0x6f, 0x72, 0x63, 0x65, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65)
+	o = msgp.AppendBool(o, z.ForceCreate)
+	// string "CreatedAt"
+	o = append(o, 0xa9, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x41, 0x74)
+	o = msgp.AppendTime(o, z.CreatedAt)
+	// string "NoLock"
+	o = append(o, 0xa6, 0x4e, 0x6f, 0x4c, 0x6f, 0x63, 0x6b)
+	o = msgp.AppendBool(o, z.NoLock)
+	return
+}
+
+// UnmarshalMsg implements msgp.Unmarshaler
+func (z *MakeBucketOptions) UnmarshalMsg(bts []byte) (o []byte, err error) {
+	var field []byte
+	_ = field
+	var zb0001 uint32
+	zb0001, bts, err = msgp.ReadMapHeaderBytes(bts)
+	if err != nil {
+		err = msgp.WrapError(err)
+		return
+	}
+	for zb0001 > 0 {
+		zb0001--
+		field, bts, err = msgp.ReadMapKeyZC(bts)
+		if err != nil {
+			err = msgp.WrapError(err)
+			return
+		}
+		switch msgp.UnsafeString(field) {
+		case "LockEnabled":
+			z.LockEnabled, bts, err = msgp.ReadBoolBytes(bts)
+			if err != nil {
+				err = msgp.WrapError(err, "LockEnabled")
+				return
+			}
+		case "VersioningEnabled":
+			z.VersioningEnabled, bts, err = msgp.ReadBoolBytes(bts)
+			if err != nil {
+				err = msgp.WrapError(err, "VersioningEnabled")
+				return
+			}
+		case "ForceCreate":
+			z.ForceCreate, bts, err = msgp.ReadBoolBytes(bts)
+			if err != nil {
+				err = msgp.WrapError(err, "ForceCreate")
+				return
+			}
+		case "CreatedAt":
+			z.CreatedAt, bts, err = msgp.ReadTimeBytes(bts)
+			if err != nil {
+				err = msgp.WrapError(err, "CreatedAt")
+				return
+			}
+		case "NoLock":
+			z.NoLock, bts, err = msgp.ReadBoolBytes(bts)
+			if err != nil {
+				err = msgp.WrapError(err, "NoLock")
+				return
+			}
+		default:
+			bts, err = msgp.Skip(bts)
+			if err != nil {
+				err = msgp.WrapError(err)
+				return
+			}
+		}
+	}
+	o = bts
+	return
+}
+
+// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
+func (z *MakeBucketOptions) Msgsize() (s int) {
+	s = 1 + 12 + msgp.BoolSize + 18 + msgp.BoolSize + 12 + msgp.BoolSize + 10 + msgp.TimeSize + 7 + msgp.BoolSize
+	return
+}
+
+// MarshalMsg implements msgp.Marshaler
+func (z *WalkOptions) MarshalMsg(b []byte) (o []byte, err error) {
+	o = msgp.Require(b, z.Msgsize())
+	// map header, size 4
+	// string "Marker"
+	o = append(o, 0x84, 0xa6, 0x4d, 0x61, 0x72, 0x6b, 0x65, 0x72)
+	o = msgp.AppendString(o, z.Marker)
+	// string "LatestOnly"
+	o = append(o, 0xaa, 0x4c, 0x61, 0x74, 0x65, 0x73, 0x74, 0x4f, 0x6e, 0x6c, 0x79)
+	o = msgp.AppendBool(o, z.LatestOnly)
+	// string "AskDisks"
+	o = append(o, 0xa8, 0x41, 0x73, 0x6b, 0x44, 0x69, 0x73, 0x6b, 0x73)
+	o = msgp.AppendString(o, z.AskDisks)
+	// string "VersionsSort"
+	o = append(o, 0xac, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x73, 0x53, 0x6f, 0x72, 0x74)
+	o = msgp.AppendUint8(o, uint8(z.VersionsSort))
+	return
+}
+
+// UnmarshalMsg implements msgp.Unmarshaler
+func (z *WalkOptions) UnmarshalMsg(bts []byte) (o []byte, err error) {
+	var field []byte
+	_ = field
+	var zb0001 uint32
+	zb0001, bts, err = msgp.ReadMapHeaderBytes(bts)
+	if err != nil {
+		err = msgp.WrapError(err)
+		return
+	}
+	for zb0001 > 0 {
+		zb0001--
+		field, bts, err = msgp.ReadMapKeyZC(bts)
+		if err != nil {
+			err = msgp.WrapError(err)
+			return
+		}
+		switch msgp.UnsafeString(field) {
+		case "Marker":
+			z.Marker, bts, err = msgp.ReadStringBytes(bts)
+			if err != nil {
+				err = msgp.WrapError(err, "Marker")
+				return
+			}
+		case "LatestOnly":
+			z.LatestOnly, bts, err = msgp.ReadBoolBytes(bts)
+			if err != nil {
+				err = msgp.WrapError(err, "LatestOnly")
+				return
+			}
+		case "AskDisks":
+			z.AskDisks, bts, err = msgp.ReadStringBytes(bts)
+			if err != nil {
+				err = msgp.WrapError(err, "AskDisks")
+				return
+			}
+		case "VersionsSort":
+			{
+				var zb0002 uint8
+				zb0002, bts, err = msgp.ReadUint8Bytes(bts)
+				if err != nil {
+					err = msgp.WrapError(err, "VersionsSort")
+					return
+				}
+				z.VersionsSort = WalkVersionsSortOrder(zb0002)
+			}
+		default:
+			bts, err = msgp.Skip(bts)
+			if err != nil {
+				err = msgp.WrapError(err)
+				return
+			}
+		}
+	}
+	o = bts
+	return
+}
+
+// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
+func (z *WalkOptions) Msgsize() (s int) {
+	s = 1 + 7 + msgp.StringPrefixSize + len(z.Marker) + 11 + msgp.BoolSize + 9 + msgp.StringPrefixSize + len(z.AskDisks) + 13 + msgp.Uint8Size
+	return
+}
+
+// MarshalMsg implements msgp.Marshaler
+func (z WalkVersionsSortOrder) MarshalMsg(b []byte) (o []byte, err error) {
+	o = msgp.Require(b, z.Msgsize())
+	o = msgp.AppendUint8(o, uint8(z))
+	return
+}
+
+// UnmarshalMsg implements msgp.Unmarshaler
+func (z *WalkVersionsSortOrder) UnmarshalMsg(bts []byte) (o []byte, err error) {
+	{
+		var zb0001 uint8
+		zb0001, bts, err = msgp.ReadUint8Bytes(bts)
+		if err != nil {
+			err = msgp.WrapError(err)
+			return
+		}
+		(*z) = WalkVersionsSortOrder(zb0001)
+	}
+	o = bts
+	return
+}
+
+// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
+func (z WalkVersionsSortOrder) Msgsize() (s int) {
+	s = msgp.Uint8Size
+	return
+}
--- a/cmd/peer-rest-common.go
+++ b/cmd/peer-rest-common.go
@ -25,22 +25,16 @@ const (
 )

 const (
-	peerRESTMethodHealth                      = "/health"
-	peerRESTMethodVerifyBinary                = "/verifybinary"
-	peerRESTMethodCommitBinary                = "/commitbinary"
-	peerRESTMethodSignalService               = "/signalservice"
-	peerRESTMethodBackgroundHealStatus        = "/backgroundhealstatus"
-	peerRESTMethodGetLocks                    = "/getlocks"
-	peerRESTMethodStartProfiling              = "/startprofiling"
-	peerRESTMethodDownloadProfilingData       = "/downloadprofilingdata"
-	peerRESTMethodGetBandwidth                = "/bandwidth"
-	peerRESTMethodSpeedTest                   = "/speedtest"
-	peerRESTMethodDriveSpeedTest              = "/drivespeedtest"
-	peerRESTMethodReloadSiteReplicationConfig = "/reloadsitereplicationconfig"
-	peerRESTMethodGetLastDayTierStats         = "/getlastdaytierstats"
-	peerRESTMethodDevNull                     = "/devnull"
-	peerRESTMethodNetperf                     = "/netperf"
-	peerRESTMethodGetReplicationMRF           = "/getreplicationmrf"
+	peerRESTMethodHealth                = "/health"
+	peerRESTMethodVerifyBinary          = "/verifybinary"
+	peerRESTMethodCommitBinary          = "/commitbinary"
+	peerRESTMethodStartProfiling        = "/startprofiling"
+	peerRESTMethodDownloadProfilingData = "/downloadprofilingdata"
+	peerRESTMethodSpeedTest             = "/speedtest"
+	peerRESTMethodDriveSpeedTest        = "/drivespeedtest"
+	peerRESTMethodDevNull               = "/devnull"
+	peerRESTMethodNetperf               = "/netperf"
+	peerRESTMethodGetReplicationMRF     = "/getreplicationmrf"
 )

 const (
--- a/cmd/peer-rest-server.go
+++ b/cmd/peer-rest-server.go
@ -53,6 +53,7 @@ type peerRESTServer struct{}

 var (
 	// Types & Wrappers
+	aoBucketInfo           = grid.NewArrayOf[*BucketInfo](func() *BucketInfo { return &BucketInfo{} })
 	aoMetricsGroup         = grid.NewArrayOf[*Metric](func() *Metric { return &Metric{} })
 	madminBgHealState      = grid.NewJSONPool[madmin.BgHealState]()
 	madminCPUs             = grid.NewJSONPool[madmin.CPUs]()
@ -97,6 +98,7 @@ var (
 	getSysServicesRPC              = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.SysServices]](grid.HandlerGetSysServices, grid.NewMSS, madminSysServices.NewJSON)
 	headBucketRPC                  = grid.NewSingleHandler[*grid.MSS, *VolInfo](grid.HandlerHeadBucket, grid.NewMSS, func() *VolInfo { return &VolInfo{} })
 	healBucketRPC                  = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerHealBucket, grid.NewMSS, grid.NewNoPayload)
+	listBucketsRPC                 = grid.NewSingleHandler[*BucketOptions, *grid.Array[*BucketInfo]](grid.HandlerListBuckets, func() *BucketOptions { return &BucketOptions{} }, aoBucketInfo.New)
 	loadBucketMetadataRPC          = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerLoadBucketMetadata, grid.NewMSS, grid.NewNoPayload).IgnoreNilConn()
 	loadGroupRPC                   = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerLoadGroup, grid.NewMSS, grid.NewNoPayload)
 	loadPolicyMappingRPC           = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerLoadPolicyMapping, grid.NewMSS, grid.NewNoPayload).IgnoreNilConn()
@ -1226,7 +1228,20 @@ func (s *peerRESTServer) HealBucketHandler(mss *grid.MSS) (np grid.NoPayload, ne
 	return np, nil
 }

-// HeadBucketHandler implements peer BuckeInfo call, returns bucket create date.
+func (s *peerRESTServer) ListBucketsHandler(opts *BucketOptions) (*grid.Array[*BucketInfo], *grid.RemoteErr) {
+	buckets, err := listBucketsLocal(context.Background(), *opts)
+	if err != nil {
+		return nil, grid.NewRemoteErr(err)
+	}
+	res := aoBucketInfo.New()
+	for i := range buckets {
+		bucket := buckets[i]
+		res.Append(&bucket)
+	}
+	return res, nil
+}
+
+// HeadBucketHandler implements peer BucketInfo call, returns bucket create date.
 func (s *peerRESTServer) HeadBucketHandler(mss *grid.MSS) (info *VolInfo, nerr *grid.RemoteErr) {
 	bucket := mss.Get(peerS3Bucket)
 	if isMinioMetaBucket(bucket) {
@ -1332,6 +1347,7 @@ func registerPeerRESTHandlers(router *mux.Router, gm *grid.Manager) {
 	logger.FatalIf(getSysServicesRPC.Register(gm, server.GetSysServicesHandler), "unable to register handler")
 	logger.FatalIf(headBucketRPC.Register(gm, server.HeadBucketHandler), "unable to register handler")
 	logger.FatalIf(healBucketRPC.Register(gm, server.HealBucketHandler), "unable to register handler")
+	logger.FatalIf(listBucketsRPC.Register(gm, server.ListBucketsHandler), "unable to register handler")
 	logger.FatalIf(listenRPC.RegisterNoInput(gm, server.ListenHandler), "unable to register handler")
 	logger.FatalIf(loadBucketMetadataRPC.Register(gm, server.LoadBucketMetadataHandler), "unable to register handler")
 	logger.FatalIf(loadGroupRPC.Register(gm, server.LoadGroupHandler), "unable to register handler")
--- a/cmd/peer-s3-client.go
+++ b/cmd/peer-s3-client.go
@ -19,11 +19,8 @@ package cmd

 import (
 	"context"
-	"encoding/gob"
 	"errors"
 	"fmt"
-	"io"
-	"net/url"
 	"sort"
 	"strconv"
 	"sync/atomic"
@ -31,9 +28,7 @@ import (

 	"github.com/minio/madmin-go/v3"
 	"github.com/minio/minio/internal/grid"
-	xhttp "github.com/minio/minio/internal/http"
 	"github.com/minio/minio/internal/logger"
-	"github.com/minio/minio/internal/rest"
 	"github.com/minio/pkg/v2/sync/errgroup"
 	"golang.org/x/exp/slices"
 )
@ -92,39 +87,14 @@ func (l localPeerS3Client) DeleteBucket(ctx context.Context, bucket string, opts

 // client to talk to peer Nodes.
 type remotePeerS3Client struct {
-	node       Node
-	pools      []int
-	restClient *rest.Client
+	node  Node
+	pools []int

 	// Function that returns the grid connection for this peer when initialized.
 	// Will return nil if the grid connection is not initialized yet.
 	gridConn func() *grid.Connection
 }

-// Wrapper to restClient.Call to handle network errors, in case of network error the connection is marked disconnected
-// permanently. The only way to restore the connection is at the xl-sets layer by xlsets.monitorAndConnectEndpoints()
-// after verifying format.json
-func (client *remotePeerS3Client) call(method string, values url.Values, body io.Reader, length int64) (respBody io.ReadCloser, err error) {
-	return client.callWithContext(GlobalContext, method, values, body, length)
-}
-
-// Wrapper to restClient.Call to handle network errors, in case of network error the connection is marked disconnected
-// permanently. The only way to restore the connection is at the xl-sets layer by xlsets.monitorAndConnectEndpoints()
-// after verifying format.json
-func (client *remotePeerS3Client) callWithContext(ctx context.Context, method string, values url.Values, body io.Reader, length int64) (respBody io.ReadCloser, err error) {
-	if values == nil {
-		values = make(url.Values)
-	}
-
-	respBody, err = client.restClient.Call(ctx, method, values, body, length)
-	if err == nil {
-		return respBody, nil
-	}
-
-	err = toStorageErr(err)
-	return nil, err
-}
-
 // S3PeerSys - S3 peer call system.
 type S3PeerSys struct {
 	peerClients []peerS3Client // Excludes self
@ -351,18 +321,18 @@ func (sys *S3PeerSys) GetBucketInfo(ctx context.Context, bucket string, opts Buc
 }

 func (client *remotePeerS3Client) ListBuckets(ctx context.Context, opts BucketOptions) ([]BucketInfo, error) {
-	v := url.Values{}
-	v.Set(peerS3BucketDeleted, strconv.FormatBool(opts.Deleted))
-
-	respBody, err := client.call(peerS3MethodListBuckets, v, nil, -1)
+	bi, err := listBucketsRPC.Call(ctx, client.gridConn(), &opts)
 	if err != nil {
-		return nil, err
+		return nil, toStorageErr(err)
 	}
-	defer xhttp.DrainBody(respBody)
-
-	var buckets []BucketInfo
-	err = gob.NewDecoder(respBody).Decode(&buckets)
-	return buckets, err
+	buckets := make([]BucketInfo, 0, len(bi.Value()))
+	for _, b := range bi.Value() {
+		if b != nil {
+			buckets = append(buckets, *b)
+		}
+	}
+	bi.Recycle() // BucketInfo has no internal pointers, so it's safe to recycle.
+	return buckets, nil
 }

 func (client *remotePeerS3Client) HealBucket(ctx context.Context, bucket string, opts madmin.HealOpts) (madmin.HealResultItem, error) {
@ -533,35 +503,10 @@ func newPeerS3Clients(endpoints EndpointServerPools) (peers []peerS3Client) {

 // Returns a peer S3 client.
 func newPeerS3Client(node Node) peerS3Client {
-	scheme := "http"
-	if globalIsTLS {
-		scheme = "https"
-	}
-
-	serverURL := &url.URL{
-		Scheme: scheme,
-		Host:   node.Host,
-		Path:   peerS3Path,
-	}
-
-	restClient := rest.NewClient(serverURL, globalInternodeTransport, newCachedAuthToken())
-	// Use a separate client to avoid recursive calls.
-	healthClient := rest.NewClient(serverURL, globalInternodeTransport, newCachedAuthToken())
-	healthClient.NoMetrics = true
-
-	// Construct a new health function.
-	restClient.HealthCheckFn = func() bool {
-		ctx, cancel := context.WithTimeout(context.Background(), restClient.HealthCheckTimeout)
-		defer cancel()
-		respBody, err := healthClient.Call(ctx, peerS3MethodHealth, nil, nil, -1)
-		xhttp.DrainBody(respBody)
-		return !isNetworkError(err)
-	}
-
 	var gridConn atomic.Pointer[grid.Connection]

 	return &remotePeerS3Client{
-		node: node, restClient: restClient,
+		node: node,
 		gridConn: func() *grid.Connection {
 			// Lazy initialization of grid connection.
 			// When we create this peer client, the grid connection is likely not yet initialized.
--- a/cmd/peer-s3-server.go
+++ b/cmd/peer-s3-server.go
@ -19,33 +19,12 @@ package cmd

 import (
 	"context"
-	"encoding/gob"
 	"errors"
-	"net/http"

 	"github.com/minio/madmin-go/v3"
-	"github.com/minio/minio/internal/logger"
-	"github.com/minio/mux"
 	"github.com/minio/pkg/v2/sync/errgroup"
 )

-const (
-	peerS3Version = "v1" // First implementation
-
-	peerS3VersionPrefix = SlashSeparator + peerS3Version
-	peerS3Prefix        = minioReservedBucketPath + "/peer-s3"
-	peerS3Path          = peerS3Prefix + peerS3VersionPrefix
-)
-
-const (
-	peerS3MethodHealth        = "/health"
-	peerS3MethodMakeBucket    = "/make-bucket"
-	peerS3MethodGetBucketInfo = "/get-bucket-info"
-	peerS3MethodDeleteBucket  = "/delete-bucket"
-	peerS3MethodListBuckets   = "/list-buckets"
-	peerS3MethodHealBucket    = "/heal-bucket"
-)
-
 const (
 	peerS3Bucket            = "bucket"
 	peerS3BucketDeleted     = "bucket-deleted"
@ -53,33 +32,6 @@ const (
 	peerS3BucketForceDelete = "force-delete"
 )

-type peerS3Server struct{}
-
-func (s *peerS3Server) writeErrorResponse(w http.ResponseWriter, err error) {
-	w.WriteHeader(http.StatusForbidden)
-	w.Write([]byte(err.Error()))
-}
-
-// IsValid - To authenticate and verify the time difference.
-func (s *peerS3Server) IsValid(w http.ResponseWriter, r *http.Request) bool {
-	objAPI := newObjectLayerFn()
-	if objAPI == nil {
-		s.writeErrorResponse(w, errServerNotInitialized)
-		return false
-	}
-
-	if err := storageServerRequestValidate(r); err != nil {
-		s.writeErrorResponse(w, err)
-		return false
-	}
-	return true
-}
-
-// HealthHandler - returns true of health
-func (s *peerS3Server) HealthHandler(w http.ResponseWriter, r *http.Request) {
-	s.IsValid(w, r)
-}
-
 func healBucketLocal(ctx context.Context, bucket string, opts madmin.HealOpts) (res madmin.HealResultItem, err error) {
 	globalLocalDrivesMu.RLock()
 	localDrives := cloneDrives(globalLocalDrives)
@ -372,34 +324,3 @@ func makeBucketLocal(ctx context.Context, bucket string, opts MakeBucketOptions)
 	errs := g.Wait()
 	return reduceWriteQuorumErrs(ctx, errs, bucketOpIgnoredErrs, (len(localDrives)/2)+1)
 }
-
-func (s *peerS3Server) ListBucketsHandler(w http.ResponseWriter, r *http.Request) {
-	if !s.IsValid(w, r) {
-		return
-	}
-
-	bucketDeleted := r.Form.Get(peerS3BucketDeleted) == "true"
-
-	buckets, err := listBucketsLocal(r.Context(), BucketOptions{
-		Deleted: bucketDeleted,
-	})
-	if err != nil {
-		s.writeErrorResponse(w, err)
-		return
-	}
-
-	logger.LogIf(r.Context(), gob.NewEncoder(w).Encode(buckets))
-}
-
-// registerPeerS3Handlers - register peer s3 router.
-func registerPeerS3Handlers(router *mux.Router) {
-	server := &peerS3Server{}
-	subrouter := router.PathPrefix(peerS3Prefix).Subrouter()
-
-	h := func(f http.HandlerFunc) http.HandlerFunc {
-		return collectInternodeStats(httpTraceHdrs(f))
-	}
-
-	subrouter.Methods(http.MethodPost).Path(peerS3VersionPrefix + peerS3MethodHealth).HandlerFunc(h(server.HealthHandler))
-	subrouter.Methods(http.MethodPost).Path(peerS3VersionPrefix + peerS3MethodListBuckets).HandlerFunc(h(server.ListBucketsHandler))
-}
--- a/cmd/routers.go
+++ b/cmd/routers.go
@ -32,9 +32,6 @@ func registerDistErasureRouters(router *mux.Router, endpointServerPools Endpoint
 	// Register peer REST router only if its a distributed setup.
 	registerPeerRESTHandlers(router, globalGrid.Load())

-	// Register peer S3 router only if its a distributed setup.
-	registerPeerS3Handlers(router)
-
 	// Register bootstrap REST router for distributed setups.
 	registerBootstrapRESTHandlers(globalGrid.Load())

--- a/internal/bucket/replication/datatypes.go
+++ b/internal/bucket/replication/datatypes.go
@ -22,6 +22,9 @@ package replication
 // StatusType of Replication for x-amz-replication-status header
 type StatusType string

+// Type - replication type enum
+type Type int
+
 const (
 	// Pending - replication is pending.
 	Pending StatusType = "PENDING"
--- a/internal/bucket/replication/datatypes_gen.go
+++ b/internal/bucket/replication/datatypes_gen.go
@ -57,3 +57,55 @@ func (z StatusType) Msgsize() (s int) {
 	s = msgp.StringPrefixSize + len(string(z))
 	return
 }
+
+// DecodeMsg implements msgp.Decodable
+func (z *Type) DecodeMsg(dc *msgp.Reader) (err error) {
+	{
+		var zb0001 int
+		zb0001, err = dc.ReadInt()
+		if err != nil {
+			err = msgp.WrapError(err)
+			return
+		}
+		(*z) = Type(zb0001)
+	}
+	return
+}
+
+// EncodeMsg implements msgp.Encodable
+func (z Type) EncodeMsg(en *msgp.Writer) (err error) {
+	err = en.WriteInt(int(z))
+	if err != nil {
+		err = msgp.WrapError(err)
+		return
+	}
+	return
+}
+
+// MarshalMsg implements msgp.Marshaler
+func (z Type) MarshalMsg(b []byte) (o []byte, err error) {
+	o = msgp.Require(b, z.Msgsize())
+	o = msgp.AppendInt(o, int(z))
+	return
+}
+
+// UnmarshalMsg implements msgp.Unmarshaler
+func (z *Type) UnmarshalMsg(bts []byte) (o []byte, err error) {
+	{
+		var zb0001 int
+		zb0001, bts, err = msgp.ReadIntBytes(bts)
+		if err != nil {
+			err = msgp.WrapError(err)
+			return
+		}
+		(*z) = Type(zb0001)
+	}
+	o = bts
+	return
+}
+
+// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
+func (z Type) Msgsize() (s int) {
+	s = msgp.IntSize
+	return
+}
--- a/internal/bucket/replication/replication.go
+++ b/internal/bucket/replication/replication.go
@ -118,9 +118,6 @@ func (c Config) Validate(bucket string, sameTarget bool) error {
 	return nil
 }

-// Type - replication type enum
-type Type int
-
 // Types of replication
 const (
 	UnsetReplicationType Type = 0 + iota
--- a/internal/grid/handlers.go
+++ b/internal/grid/handlers.go
@ -110,6 +110,7 @@ const (
 	HandlerSignalService
 	HandlerGetBandwidth
 	HandlerWriteAll
+	HandlerListBuckets

 	// Add more above here ^^^
 	// If all handlers are used, the type of Handler can be changed.
@ -187,6 +188,7 @@ var handlerPrefixes = [handlerLast]string{
 	HandlerStorageInfo:                 peerPrefix,
 	HandlerConsoleLog:                  peerPrefix,
 	HandlerListDir:                     storagePrefix,
+	HandlerListBuckets:                 peerPrefixS3,
 }

 const (
--- a/internal/grid/handlers_string.go
+++ b/internal/grid/handlers_string.go
@ -79,14 +79,15 @@ func _() {
 	_ = x[HandlerSignalService-68]
 	_ = x[HandlerGetBandwidth-69]
 	_ = x[HandlerWriteAll-70]
-	_ = x[handlerTest-71]
-	_ = x[handlerTest2-72]
-	_ = x[handlerLast-73]
+	_ = x[HandlerListBuckets-71]
+	_ = x[handlerTest-72]
+	_ = x[handlerTest2-73]
+	_ = x[handlerLast-74]
 }

-const _HandlerID_name = "handlerInvalidLockLockLockRLockLockUnlockLockRUnlockLockRefreshLockForceUnlockWalkDirStatVolDiskInfoNSScannerReadXLReadVersionDeleteFileDeleteVersionUpdateMetadataWriteMetadataCheckPartsRenameDataRenameFileReadAllServerVerifyTraceListenDeleteBucketMetadataLoadBucketMetadataReloadSiteReplicationConfigReloadPoolMetaStopRebalanceLoadRebalanceMetaLoadTransitionTierConfigDeletePolicyLoadPolicyLoadPolicyMappingDeleteServiceAccountLoadServiceAccountDeleteUserLoadUserLoadGroupHealBucketMakeBucketHeadBucketDeleteBucketGetMetricsGetResourceMetricsGetMemInfoGetProcInfoGetOSInfoGetPartitionsGetNetInfoGetCPUsServerInfoGetSysConfigGetSysServicesGetSysErrorsGetAllBucketStatsGetBucketStatsGetSRMetricsGetPeerMetricsGetMetacacheListingUpdateMetacacheListingGetPeerBucketMetricsStorageInfoConsoleLogListDirGetLocksBackgroundHealStatusGetLastDayTierStatsSignalServiceGetBandwidthWriteAllhandlerTesthandlerTest2handlerLast"
+const _HandlerID_name = "handlerInvalidLockLockLockRLockLockUnlockLockRUnlockLockRefreshLockForceUnlockWalkDirStatVolDiskInfoNSScannerReadXLReadVersionDeleteFileDeleteVersionUpdateMetadataWriteMetadataCheckPartsRenameDataRenameFileReadAllServerVerifyTraceListenDeleteBucketMetadataLoadBucketMetadataReloadSiteReplicationConfigReloadPoolMetaStopRebalanceLoadRebalanceMetaLoadTransitionTierConfigDeletePolicyLoadPolicyLoadPolicyMappingDeleteServiceAccountLoadServiceAccountDeleteUserLoadUserLoadGroupHealBucketMakeBucketHeadBucketDeleteBucketGetMetricsGetResourceMetricsGetMemInfoGetProcInfoGetOSInfoGetPartitionsGetNetInfoGetCPUsServerInfoGetSysConfigGetSysServicesGetSysErrorsGetAllBucketStatsGetBucketStatsGetSRMetricsGetPeerMetricsGetMetacacheListingUpdateMetacacheListingGetPeerBucketMetricsStorageInfoConsoleLogListDirGetLocksBackgroundHealStatusGetLastDayTierStatsSignalServiceGetBandwidthWriteAllListBucketshandlerTesthandlerTest2handlerLast"

-var _HandlerID_index = [...]uint16{0, 14, 22, 31, 41, 52, 63, 78, 85, 92, 100, 109, 115, 126, 136, 149, 163, 176, 186, 196, 206, 213, 225, 230, 236, 256, 274, 301, 315, 328, 345, 369, 381, 391, 408, 428, 446, 456, 464, 473, 483, 493, 503, 515, 525, 543, 553, 564, 573, 586, 596, 603, 613, 625, 639, 651, 668, 682, 694, 708, 727, 749, 769, 780, 790, 797, 805, 825, 844, 857, 869, 877, 888, 900, 911}
+var _HandlerID_index = [...]uint16{0, 14, 22, 31, 41, 52, 63, 78, 85, 92, 100, 109, 115, 126, 136, 149, 163, 176, 186, 196, 206, 213, 225, 230, 236, 256, 274, 301, 315, 328, 345, 369, 381, 391, 408, 428, 446, 456, 464, 473, 483, 493, 503, 515, 525, 543, 553, 564, 573, 586, 596, 603, 613, 625, 639, 651, 668, 682, 694, 708, 727, 749, 769, 780, 790, 797, 805, 825, 844, 857, 869, 877, 888, 899, 911, 922}

 func (i HandlerID) String() string {
 	if i >= HandlerID(len(_HandlerID_index)-1) {