diff --git a/cmd/cmd/run.go b/cmd/cmd/run.go
index f642e0b..3ec9449 100644
--- a/cmd/cmd/run.go
+++ b/cmd/cmd/run.go
@@ -11,7 +11,6 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
-	"strings"
 	"time"
 
 	"github.com/CESSProject/DeOSS/configs"
@@ -45,7 +44,6 @@ func cmd_run_func(cmd *cobra.Command, args []string) {
 		fadebackDir  string
 		ufileDir     string
 		dfileDir     string
-		bootEnv      string
 		syncSt       chain.SysSyncState
 		peerRecord   = node.NewPeerRecord()
 		n            = node.New()
@@ -134,24 +132,6 @@ func cmd_run_func(cmd *cobra.Command, args []string) {
 	time.Sleep(time.Second)
 
 	out.Tip(fmt.Sprintf("chain network: %s", n.GetNetworkEnv()))
-	out.Tip(fmt.Sprintf("p2p network: %s", bootEnv))
-	if strings.Contains(bootEnv, "test") {
-		if !strings.Contains(n.GetNetworkEnv(), "test") {
-			out.Warn("chain and p2p are not in the same network")
-		}
-	}
-
-	if strings.Contains(bootEnv, "main") {
-		if !strings.Contains(n.GetNetworkEnv(), "main") {
-			out.Warn("chain and p2p are not in the same network")
-		}
-	}
-
-	if strings.Contains(bootEnv, "dev") {
-		if !strings.Contains(n.GetNetworkEnv(), "dev") {
-			out.Warn("chain and p2p are not in the same network")
-		}
-	}
 
 	if registerFlag {
 		_, err = n.RegisterOss(n.GetPeerPublickey(), n.GetDomainName())
diff --git a/go.mod b/go.mod
index 0fb8bcf..004f75d 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/CESSProject/DeOSS
 go 1.20
 
 require (
-	github.com/CESSProject/cess-go-sdk v0.5.1-0.20240511074236-0962272b87ad
+	github.com/CESSProject/cess-go-sdk v0.5.1-0.20240516132726-775a705e4c76
 	github.com/CESSProject/cess-go-tools v0.2.6
 	github.com/CESSProject/go-keyring v0.0.0-20220614131247-ee3a8da30fde
 	github.com/CESSProject/p2p-go v0.3.14
diff --git a/go.sum b/go.sum
index 41939ca..18cdf65 100644
--- a/go.sum
+++ b/go.sum
@@ -9,8 +9,8 @@ dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D
 git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/CESSProject/cess-go-sdk v0.5.1-0.20240511074236-0962272b87ad h1:oknDc9mWkxphN3ICRcJQNqPaudZOJkKx6t8uYYsXKEQ=
-github.com/CESSProject/cess-go-sdk v0.5.1-0.20240511074236-0962272b87ad/go.mod h1:9BGRFkU3Zc5CYqK9EIz3DY14MjDg6a0bA1DWgMk3qFc=
+github.com/CESSProject/cess-go-sdk v0.5.1-0.20240516132726-775a705e4c76 h1:6nYML8LknGbCa+l5BIseOjJuDxoXEl3fLGkDmFnkxTg=
+github.com/CESSProject/cess-go-sdk v0.5.1-0.20240516132726-775a705e4c76/go.mod h1:9BGRFkU3Zc5CYqK9EIz3DY14MjDg6a0bA1DWgMk3qFc=
 github.com/CESSProject/cess-go-tools v0.2.6 h1:kZjqHN8uIyExTu8EEQApLN4qsmpWaWQfgBQD/0wF2+A=
 github.com/CESSProject/cess-go-tools v0.2.6/go.mod h1:g86Xkq1+FZHg1srAvkwGqD3WoG+EIdeA2JHQAhhtKqQ=
 github.com/CESSProject/go-keyring v0.0.0-20220614131247-ee3a8da30fde h1:5MDRjjtg6PEhqyVjupwaapN96cOZiddOGAYwKQeaTu0=
diff --git a/node/delHandle.go b/node/delHandle.go
index 94b9de0..95758d3 100644
--- a/node/delHandle.go
+++ b/node/delHandle.go
@@ -30,6 +30,16 @@ func (n *Node) delHandle(c *gin.Context) {
 		clientIp string
 	)
 
+	if n.GetBalances() <= 1 {
+		c.JSON(http.StatusInternalServerError, "service balance is insufficient, please try again later.")
+		return
+	}
+
+	if !n.GetRpcState() {
+		c.JSON(http.StatusInternalServerError, "service rpc connection failed, please try again later.")
+		return
+	}
+
 	clientIp = c.Request.Header.Get("X-Forwarded-For")
 	n.Del("info", fmt.Sprintf("[%v] %v", clientIp, INFO_DelRequest))
 	// verify the authorization
diff --git a/node/getHandle.go b/node/getHandle.go
index 6838ad1..284e037 100644
--- a/node/getHandle.go
+++ b/node/getHandle.go
@@ -66,8 +66,25 @@ type FileMetaData struct {
 	Owner       []RtnUserBrief
 }
 
+const max_concurrent_get = 30
+
+var max_concurrent_get_ch chan bool
+
+func init() {
+	max_concurrent_get_ch = make(chan bool, max_concurrent_get)
+	for i := 0; i < max_concurrent_get; i++ {
+		max_concurrent_get_ch <- true
+	}
+}
+
 // getHandle
 func (n *Node) getHandle(c *gin.Context) {
+	if _, ok := <-max_concurrent_get_ch; !ok {
+		c.JSON(http.StatusTooManyRequests, "service is busy, please try again later.")
+		return
+	}
+	defer func() { max_concurrent_get_ch <- true }()
+
 	clientIp := c.Request.Header.Get("X-Forwarded-For")
 	n.Query("info", fmt.Sprintf("[%s] %s", clientIp, INFO_GetRequest))
 
diff --git a/node/putHandle.go b/node/putHandle.go
index 747ef8b..9b839e5 100644
--- a/node/putHandle.go
+++ b/node/putHandle.go
@@ -51,11 +51,21 @@ func init() {
 // putHandle
 func (n *Node) putHandle(c *gin.Context) {
 	if _, ok := <-max_concurrent_req_ch; !ok {
-		c.JSON(http.StatusTooManyRequests, "The server is busy, please try again later.")
+		c.JSON(http.StatusTooManyRequests, "service is busy, please try again later.")
 		return
 	}
 	defer func() { max_concurrent_req_ch <- true }()
 
+	if n.GetBalances() <= 1 {
+		c.JSON(http.StatusInternalServerError, "service balance is insufficient, please try again later.")
+		return
+	}
+
+	if !n.GetRpcState() {
+		c.JSON(http.StatusInternalServerError, "service rpc connection failed, please try again later.")
+		return
+	}
+
 	var (
 		ok       bool
 		err      error
diff --git a/node/taskMgt.go b/node/taskMgt.go
index 892bd73..9019993 100644
--- a/node/taskMgt.go
+++ b/node/taskMgt.go
@@ -9,9 +9,11 @@ package node
 
 import (
 	"fmt"
+	"math"
+	"math/big"
 	"time"
 
-	"github.com/CESSProject/cess-go-sdk/chain"
+	schain "github.com/CESSProject/cess-go-sdk/chain"
 	sconfig "github.com/CESSProject/cess-go-sdk/config"
 	"github.com/CESSProject/p2p-go/out"
 	"github.com/mr-tron/base58"
@@ -19,24 +21,28 @@ import (
 
 func (n *Node) TaskMgt() {
 	var (
-		ch_trackFile = make(chan bool, 1)
-		ch_sdkMgt    = make(chan bool, 1)
+		ch_trackFile    = make(chan bool, 1)
+		ch_sdkMgt       = make(chan bool, 1)
+		ch_refreshMiner = make(chan bool, 1)
 	)
 
-	go n.refreshMiner()
+	go n.refreshMiner(ch_refreshMiner)
 	go n.tracker(ch_trackFile)
 	go n.sdkMgt(ch_sdkMgt)
 
-	task_10S := time.NewTicker(time.Duration(time.Second * 10))
-	defer task_10S.Stop()
+	task_block := time.NewTicker(time.Duration(time.Second * 6))
+	defer task_block.Stop()
+
+	task_Minute := time.NewTicker(time.Duration(time.Second * 57))
+	defer task_Minute.Stop()
 	count := 0
 	for {
 		select {
-		case <-task_10S.C:
+		case <-task_block.C:
 			err := n.connectChain()
 			if err != nil {
-				n.Log("err", chain.ERR_RPC_CONNECTION.Error())
-				out.Err(chain.ERR_RPC_CONNECTION.Error())
+				n.Log("err", schain.ERR_RPC_CONNECTION.Error())
+				out.Err(schain.ERR_RPC_CONNECTION.Error())
 			}
 			count++
 			if count >= 4320 { //blacklist released every 12 hours
@@ -44,11 +50,22 @@ func (n *Node) TaskMgt() {
 				n.ClearBlackList()
 			}
 
+		case <-task_Minute.C:
+			err := n.refreshSelf()
+			if err != nil {
+				n.Log("err", err.Error())
+			}
+
 		case <-ch_trackFile:
 			go n.tracker(ch_trackFile)
 
-		case <-ch_sdkMgt:
-			go n.sdkMgt(ch_sdkMgt)
+		default:
+			if time.Now().Hour()%5 == 0 {
+				if len(ch_refreshMiner) > 0 {
+					<-ch_refreshMiner
+					go n.refreshMiner(ch_refreshMiner)
+				}
+			}
 		}
 	}
 }
@@ -56,8 +73,8 @@ func (n *Node) TaskMgt() {
 func (n *Node) connectChain() error {
 	var err error
 	if !n.GetRpcState() {
-		n.Log("err", fmt.Sprintf("[%s] %v", n.GetCurrentRpcAddr(), chain.ERR_RPC_CONNECTION))
-		out.Err(fmt.Sprintf("[%s] %v", n.GetCurrentRpcAddr(), chain.ERR_RPC_CONNECTION))
+		n.Log("err", fmt.Sprintf("[%s] %v", n.GetCurrentRpcAddr(), schain.ERR_RPC_CONNECTION))
+		out.Err(fmt.Sprintf("[%s] %v", n.GetCurrentRpcAddr(), schain.ERR_RPC_CONNECTION))
 		err = n.ReconnectRpc()
 		if err != nil {
 			return err
@@ -69,7 +86,8 @@ func (n *Node) connectChain() error {
 	return nil
 }
 
-func (n *Node) refreshMiner() {
+func (n *Node) refreshMiner(ch chan<- bool) {
+	defer func() { ch <- true }()
 	sminerList, err := n.QueryAllMiner(-1)
 	if err == nil {
 		for i := 0; i < len(sminerList); i++ {
@@ -85,3 +103,23 @@ func (n *Node) refreshMiner() {
 		}
 	}
 }
+
+func (n *Node) refreshSelf() error {
+	accInfo, err := n.QueryAccountInfoByAccountID(n.GetSignatureAccPulickey(), -1)
+	if err != nil {
+		return err
+	}
+	if len(accInfo.Data.Free.Bytes()) <= 0 {
+		n.SetBalances(0)
+	} else {
+		free_bi, _ := new(big.Int).SetString(accInfo.Data.Free.String(), 10)
+		minBanlance_bi, _ := new(big.Int).SetString(schain.MinTransactionBalance, 10)
+		free_bi = free_bi.Div(free_bi, minBanlance_bi)
+		if free_bi.IsUint64() {
+			n.SetBalances(free_bi.Uint64())
+		} else {
+			n.SetBalances(math.MaxUint64)
+		}
+	}
+	return nil
+}