diff --git a/agent/internal/grpc/io.go b/agent/internal/grpc/io.go
index eb71027..b7977de 100644
--- a/agent/internal/grpc/io.go
+++ b/agent/internal/grpc/io.go
@@ -9,7 +9,6 @@ import (
 	"gitlink.org.cn/cloudream/common/pkgs/logger"
 	"gitlink.org.cn/cloudream/common/utils/io2"
 	"gitlink.org.cn/cloudream/common/utils/serder"
-	agentserver "gitlink.org.cn/cloudream/storage/common/pkgs/grpc/agent"
 	agtrpc "gitlink.org.cn/cloudream/storage/common/pkgs/grpc/agent"
 	"gitlink.org.cn/cloudream/storage/common/pkgs/ioswitch"
 )
@@ -21,9 +20,12 @@ func (s *Service) ExecuteIOPlan(ctx context.Context, req *agtrpc.ExecuteIOPlanRe
 	}
 
 	logger.WithField("PlanID", plan.ID).Infof("begin execute io plan")
+	defer logger.WithField("PlanID", plan.ID).Infof("plan finished")
 
 	sw := ioswitch.NewSwitch(plan)
+
 	s.swMgr.Add(sw)
+	defer s.swMgr.Remove(sw)
 
 	err = sw.Run(ctx)
 	if err != nil {
@@ -33,12 +35,12 @@ func (s *Service) ExecuteIOPlan(ctx context.Context, req *agtrpc.ExecuteIOPlanRe
 	return &agtrpc.ExecuteIOPlanResp{}, nil
 }
 
-func (s *Service) SendStream(server agentserver.Agent_SendStreamServer) error {
+func (s *Service) SendStream(server agtrpc.Agent_SendStreamServer) error {
 	msg, err := server.Recv()
 	if err != nil {
 		return fmt.Errorf("recving stream id packet: %w", err)
 	}
-	if msg.Type != agentserver.StreamDataPacketType_SendArgs {
+	if msg.Type != agtrpc.StreamDataPacketType_SendArgs {
 		return fmt.Errorf("first packet must be a SendArgs packet")
 	}
 
@@ -58,8 +60,9 @@ func (s *Service) SendStream(server agentserver.Agent_SendStreamServer) error {
 
 	pr, pw := io.Pipe()
 
+	varID := ioswitch.VarID(msg.VarID)
 	sw.PutVars(&ioswitch.StreamVar{
-		ID:     ioswitch.VarID(msg.VarID),
+		ID:     varID,
 		Stream: pr,
 	})
 
@@ -74,6 +77,7 @@ func (s *Service) SendStream(server agentserver.Agent_SendStreamServer) error {
 			// 关闭文件写入
 			pw.CloseWithError(io.ErrClosedPipe)
 			logger.WithField("ReceiveSize", recvSize).
+				WithField("VarID", varID).
 				Warnf("recv message failed, err: %s", err.Error())
 			return fmt.Errorf("recv message failed, err: %w", err)
 		}
@@ -88,7 +92,7 @@ func (s *Service) SendStream(server agentserver.Agent_SendStreamServer) error {
 
 		recvSize += int64(len(msg.Data))
 
-		if msg.Type == agentserver.StreamDataPacketType_EOF {
+		if msg.Type == agtrpc.StreamDataPacketType_EOF {
 			// 客户端明确说明文件传输已经结束，那么结束写入，获得文件Hash
 			err := pw.Close()
 			if err != nil {
@@ -97,7 +101,7 @@ func (s *Service) SendStream(server agentserver.Agent_SendStreamServer) error {
 			}
 
 			// 并将结果返回到客户端
-			err = server.SendAndClose(&agentserver.SendStreamResp{})
+			err = server.SendAndClose(&agtrpc.SendStreamResp{})
 			if err != nil {
 				logger.Warnf("send response failed, err: %s", err.Error())
 				return fmt.Errorf("send response failed, err: %w", err)
@@ -108,7 +112,7 @@ func (s *Service) SendStream(server agentserver.Agent_SendStreamServer) error {
 	}
 }
 
-func (s *Service) GetStream(req *agentserver.GetStreamReq, server agentserver.Agent_GetStreamServer) error {
+func (s *Service) GetStream(req *agtrpc.GetStreamReq, server agtrpc.Agent_GetStreamServer) error {
 	logger.
 		WithField("PlanID", req.PlanID).
 		WithField("VarID", req.VarID).
@@ -141,8 +145,8 @@ func (s *Service) GetStream(req *agentserver.GetStreamReq, server agentserver.Ag
 
 		if readCnt > 0 {
 			readAllCnt += readCnt
-			err = server.Send(&agentserver.StreamDataPacket{
-				Type: agentserver.StreamDataPacketType_Data,
+			err = server.Send(&agtrpc.StreamDataPacket{
+				Type: agtrpc.StreamDataPacketType_Data,
 				Data: buf[:readCnt],
 			})
 			if err != nil {
@@ -161,8 +165,8 @@ func (s *Service) GetStream(req *agentserver.GetStreamReq, server agentserver.Ag
 				WithField("VarID", req.VarID).
 				Debugf("send data size %d", readAllCnt)
 			// 发送EOF消息
-			server.Send(&agentserver.StreamDataPacket{
-				Type: agentserver.StreamDataPacketType_EOF,
+			server.Send(&agtrpc.StreamDataPacket{
+				Type: agtrpc.StreamDataPacketType_EOF,
 			})
 			return nil
 		}
@@ -197,10 +201,10 @@ func (s *Service) SendVar(ctx context.Context, req *agtrpc.SendVarReq) (*agtrpc.
 }
 
 func (s *Service) GetVar(ctx context.Context, req *agtrpc.GetVarReq) (*agtrpc.GetVarResp, error) {
-	ctx, cancel := context.WithTimeout(ctx, time.Second*30)
+	ctx2, cancel := context.WithTimeout(ctx, time.Second*30)
 	defer cancel()
 
-	sw := s.swMgr.FindByIDContexted(ctx, ioswitch.PlanID(req.PlanID))
+	sw := s.swMgr.FindByIDContexted(ctx2, ioswitch.PlanID(req.PlanID))
 	if sw == nil {
 		return nil, fmt.Errorf("plan not found")
 	}
@@ -215,7 +219,7 @@ func (s *Service) GetVar(ctx context.Context, req *agtrpc.GetVarReq) (*agtrpc.Ge
 		return nil, fmt.Errorf("binding vars: %w", err)
 	}
 
-	vd, err := serder.ObjectToJSON(v)
+	vd, err := serder.ObjectToJSONEx(v)
 	if err != nil {
 		return nil, fmt.Errorf("serializing var: %w", err)
 	}
diff --git a/common/pkgs/ioswitch/manager.go b/common/pkgs/ioswitch/manager.go
index f2cb3bb..940aa66 100644
--- a/common/pkgs/ioswitch/manager.go
+++ b/common/pkgs/ioswitch/manager.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"sync"
 
+	"github.com/samber/lo"
 	"gitlink.org.cn/cloudream/common/pkgs/future"
 	"gitlink.org.cn/cloudream/common/utils/lo2"
 )
@@ -30,14 +31,15 @@ func (s *Manager) Add(sw *Switch) {
 	defer s.lock.Unlock()
 
 	s.switchs[sw.Plan().ID] = sw
-	for i := range s.findings {
-		if s.findings[i].PlanID != sw.Plan().ID {
-			continue
+
+	s.findings = lo.Reject(s.findings, func(f *finding, idx int) bool {
+		if f.PlanID != sw.Plan().ID {
+			return false
 		}
 
-		s.findings[i].Callback.SetValue(sw)
-		s.findings = lo2.RemoveAt(s.findings, i)
-	}
+		f.Callback.SetValue(sw)
+		return true
+	})
 }
 
 func (s *Manager) Remove(sw *Switch) {
diff --git a/common/pkgs/ioswitch/ops/grpc.go b/common/pkgs/ioswitch/ops/grpc.go
index 4c26328..d1a6c97 100644
--- a/common/pkgs/ioswitch/ops/grpc.go
+++ b/common/pkgs/ioswitch/ops/grpc.go
@@ -6,6 +6,7 @@ import (
 	"io"
 
 	"gitlink.org.cn/cloudream/common/pkgs/future"
+	"gitlink.org.cn/cloudream/common/pkgs/logger"
 	cdssdk "gitlink.org.cn/cloudream/common/sdks/storage"
 	"gitlink.org.cn/cloudream/common/utils/io2"
 	stgglb "gitlink.org.cn/cloudream/storage/common/globals"
@@ -30,6 +31,8 @@ func (o *SendStream) Execute(ctx context.Context, sw *ioswitch.Switch) error {
 	}
 	defer stgglb.AgentRPCPool.Release(agtCli)
 
+	logger.Debugf("sending stream %v to node %v", o.Stream.ID, o.Node)
+
 	err = agtCli.SendStream(ctx, sw.Plan().ID, o.Stream.ID, o.Stream.Stream)
 	if err != nil {
 		return fmt.Errorf("sending stream: %w", err)
@@ -50,6 +53,8 @@ func (o *GetStream) Execute(ctx context.Context, sw *ioswitch.Switch) error {
 	}
 	defer stgglb.AgentRPCPool.Release(agtCli)
 
+	logger.Debugf("getting stream %v from node %v", o.Stream.ID, o.Node)
+
 	str, err := agtCli.GetStream(sw.Plan().ID, o.Stream.ID)
 	if err != nil {
 		return fmt.Errorf("getting stream: %w", err)
@@ -81,6 +86,8 @@ func (o *SendVar) Execute(ctx context.Context, sw *ioswitch.Switch) error {
 	}
 	defer stgglb.AgentRPCPool.Release(agtCli)
 
+	logger.Debugf("sending var %v to node %v", o.Var.GetID(), o.Node)
+
 	err = agtCli.SendVar(ctx, sw.Plan().ID, o.Var)
 	if err != nil {
 		return fmt.Errorf("sending var: %w", err)
@@ -101,6 +108,8 @@ func (o *GetVar) Execute(ctx context.Context, sw *ioswitch.Switch) error {
 	}
 	defer stgglb.AgentRPCPool.Release(agtCli)
 
+	logger.Debugf("getting var %v from node %v", o.Var.GetID(), o.Node)
+
 	v2, err := agtCli.GetVar(ctx, sw.Plan().ID, o.Var)
 	if err != nil {
 		return fmt.Errorf("getting var: %w", err)
diff --git a/common/pkgs/ioswitch/ops/ipfs.go b/common/pkgs/ioswitch/ops/ipfs.go
index 2c1d325..2a485bb 100644
--- a/common/pkgs/ioswitch/ops/ipfs.go
+++ b/common/pkgs/ioswitch/ops/ipfs.go
@@ -22,7 +22,6 @@ type IPFSRead struct {
 func (o *IPFSRead) Execute(ctx context.Context, sw *ioswitch.Switch) error {
 	logger.
 		WithField("FileHash", o.FileHash).
-		WithField("Output", o.Output).
 		Debugf("ipfs read op")
 	defer logger.Debugf("ipfs read op finished")
 
@@ -54,8 +53,8 @@ type IPFSWrite struct {
 
 func (o *IPFSWrite) Execute(ctx context.Context, sw *ioswitch.Switch) error {
 	logger.
-		WithField("ResultKey", o.FileHash).
-		WithField("Input", o.Input).
+		WithField("Input", o.Input.ID).
+		WithField("FileHashVar", o.FileHash.ID).
 		Debugf("ipfs write op")
 
 	ipfsCli, err := stgglb.IPFSPool.Acquire()
diff --git a/common/pkgs/ioswitch/plans/executor.go b/common/pkgs/ioswitch/plans/executor.go
index c1578bf..e1de800 100644
--- a/common/pkgs/ioswitch/plans/executor.go
+++ b/common/pkgs/ioswitch/plans/executor.go
@@ -87,6 +87,8 @@ func (e *Executor) execute() {
 	}
 
 	wg.Wait()
+
+	e.callback.SetVoid()
 }
 
 func (e *Executor) stopWith(err error) {
diff --git a/common/pkgs/ioswitch/plans/plan_builder.go b/common/pkgs/ioswitch/plans/plan_builder.go
index 65ff671..ccb709f 100644
--- a/common/pkgs/ioswitch/plans/plan_builder.go
+++ b/common/pkgs/ioswitch/plans/plan_builder.go
@@ -16,10 +16,14 @@ type PlanBuilder struct {
 	storeMap     *sync.Map
 }
 
-func NewPlanBuilder() PlanBuilder {
-	return PlanBuilder{
+func NewPlanBuilder() *PlanBuilder {
+	bld := &PlanBuilder{
 		agentPlans: make(map[cdssdk.NodeID]*AgentPlanBuilder),
+		storeMap:   &sync.Map{},
 	}
+	bld.executorPlan.blder = bld
+
+	return bld
 }
 
 func (b *PlanBuilder) AtExecutor() *ExecutorPlanBuilder {
diff --git a/common/pkgs/ioswitch/switch.go b/common/pkgs/ioswitch/switch.go
index 9760ff2..1dceeab 100644
--- a/common/pkgs/ioswitch/switch.go
+++ b/common/pkgs/ioswitch/switch.go
@@ -102,23 +102,23 @@ func (s *Switch) PutVars(vs ...Var) {
 
 loop:
 	for _, v := range vs {
-		for _, b := range s.bindings {
-			for i, w := range b.Waittings {
+		for ib, b := range s.bindings {
+			for iw, w := range b.Waittings {
 				if w.GetID() != v.GetID() {
 					continue
 				}
 
-				if err := AssignVar(w, v); err != nil {
+				if err := AssignVar(v, w); err != nil {
 					b.Callback.SetError(fmt.Errorf("assign var %v to %v: %w", v.GetID(), w.GetID(), err))
 					// 绑定类型不对，说明生成的执行计划有问题，怎么处理都可以，因为最终会执行失败
 					continue loop
 				}
 
 				b.Bindeds = append(b.Bindeds, w)
-				b.Waittings = lo2.RemoveAt(b.Waittings, i)
+				b.Waittings = lo2.RemoveAt(b.Waittings, iw)
 				if len(b.Waittings) == 0 {
 					b.Callback.SetVoid()
-					s.bindings = lo2.RemoveAt(s.bindings, i)
+					s.bindings = lo2.RemoveAt(s.bindings, ib)
 				}
 
 				// 绑定成功，继续最外层循环
diff --git a/common/pkgs/ioswitch/utils.go b/common/pkgs/ioswitch/utils.go
index e5a9ee1..e912053 100644
--- a/common/pkgs/ioswitch/utils.go
+++ b/common/pkgs/ioswitch/utils.go
@@ -11,6 +11,8 @@ func AssignVar(from Var, to Var) error {
 	}
 
 	switch from := from.(type) {
+	case *StreamVar:
+		to.(*StreamVar).Stream = from.Stream
 	case *IntVar:
 		to.(*IntVar).Value = from.Value
 	case *StringVar:
diff --git a/scanner/internal/config/config.go b/scanner/internal/config/config.go
index 6fc6830..353e2e4 100644
--- a/scanner/internal/config/config.go
+++ b/scanner/internal/config/config.go
@@ -9,13 +9,12 @@ import (
 )
 
 type Config struct {
-	ECFileSizeThreshold    int64 `json:"ecFileSizeThreshold"`
-	NodeUnavailableSeconds int   `json:"nodeUnavailableSeconds"` // 如果节点上次上报时间超过这个值，则认为节点已经不可用
-
-	Logger   log.Config      `json:"logger"`
-	DB       db.Config       `json:"db"`
-	RabbitMQ stgmq.Config    `json:"rabbitMQ"`
-	DistLock distlock.Config `json:"distlock"`
+	ECFileSizeThreshold    int64           `json:"ecFileSizeThreshold"`
+	NodeUnavailableSeconds int             `json:"nodeUnavailableSeconds"` // 如果节点上次上报时间超过这个值，则认为节点已经不可用
+	Logger                 log.Config      `json:"logger"`
+	DB                     db.Config       `json:"db"`
+	RabbitMQ               stgmq.Config    `json:"rabbitMQ"`
+	DistLock               distlock.Config `json:"distlock"`
 }
 
 var cfg Config
diff --git a/scanner/internal/event/clean_pinned.go b/scanner/internal/event/clean_pinned.go
index 1994fc8..664acb5 100644
--- a/scanner/internal/event/clean_pinned.go
+++ b/scanner/internal/event/clean_pinned.go
@@ -133,10 +133,10 @@ func (t *CleanPinned) Execute(execCtx ExecuteContext) {
 			pinnedAt:        obj.PinnedAt,
 			blocks:          obj.Blocks,
 		})
-		ecObjectsUpdating = append(ecObjectsUpdating, t.makePlansForECObject(allNodeInfos, solu, obj, &planBld, plnningNodeIDs))
+		ecObjectsUpdating = append(ecObjectsUpdating, t.makePlansForECObject(allNodeInfos, solu, obj, planBld, plnningNodeIDs))
 	}
 
-	ioSwRets, err := t.executePlans(execCtx, pinPlans, &planBld, plnningNodeIDs)
+	ioSwRets, err := t.executePlans(execCtx, pinPlans, planBld, plnningNodeIDs)
 	if err != nil {
 		log.Warn(err.Error())
 		return
diff --git a/scanner/main.go b/scanner/main.go
index c89b846..f17e269 100644
--- a/scanner/main.go
+++ b/scanner/main.go
@@ -8,6 +8,7 @@ import (
 	stgglb "gitlink.org.cn/cloudream/storage/common/globals"
 	"gitlink.org.cn/cloudream/storage/common/pkgs/db"
 	"gitlink.org.cn/cloudream/storage/common/pkgs/distlock"
+	agtrpc "gitlink.org.cn/cloudream/storage/common/pkgs/grpc/agent"
 	scmq "gitlink.org.cn/cloudream/storage/common/pkgs/mq/scanner"
 	"gitlink.org.cn/cloudream/storage/scanner/internal/config"
 	"gitlink.org.cn/cloudream/storage/scanner/internal/event"
@@ -35,6 +36,8 @@ func main() {
 
 	stgglb.InitMQPool(&config.Cfg().RabbitMQ)
 
+	stgglb.InitAgentRPCPool(&agtrpc.PoolConfig{})
+
 	distlockSvc, err := distlock.NewService(&config.Cfg().DistLock)
 	if err != nil {
 		logger.Warnf("new distlock service failed, err: %s", err.Error())