7 files changed, 15 insertions, 10 deletions
diff --git a/weed/command/backup.go b/weed/command/backup.go
index bbb6c6724..a8be4838e 100644
--- a/weed/command/backup.go
+++ b/weed/command/backup.go
@@ -1,6 +1,7 @@
 package command
 
 import (
+	"context"
 	"fmt"
 
 	"github.com/seaweedfs/seaweedfs/weed/pb"
@@ -74,7 +75,7 @@ func runBackup(cmd *Command, args []string) bool {
 	vid := needle.VolumeId(*s.volumeId)
 
 	// find volume location, replication, ttl info
-	lookup, err := operation.LookupVolumeId(func() pb.ServerAddress { return pb.ServerAddress(*s.master) }, grpcDialOption, vid.String())
+	lookup, err := operation.LookupVolumeId(func(_ context.Context) pb.ServerAddress { return pb.ServerAddress(*s.master) }, grpcDialOption, vid.String())
 	if err != nil {
 		fmt.Printf("Error looking up volume %d: %v\n", vid, err)
 		return true
diff --git a/weed/command/benchmark.go b/weed/command/benchmark.go
index 7f9a23cf8..2a0db47c2 100644
--- a/weed/command/benchmark.go
+++ b/weed/command/benchmark.go
@@ -2,6 +2,7 @@ package command
 
 import (
 	"bufio"
+	"context"
 	"fmt"
 	"github.com/seaweedfs/seaweedfs/weed/pb"
 	"io"
@@ -128,8 +129,9 @@ func runBenchmark(cmd *Command, args []string) bool {
 	}
 
 	b.masterClient = wdclient.NewMasterClient(b.grpcDialOption, "", "client", "", "", "", *pb.ServerAddresses(*b.masters).ToServiceDiscovery())
-	go b.masterClient.KeepConnectedToMaster()
-	b.masterClient.WaitUntilConnected()
+	ctx := context.Background()
+	go b.masterClient.KeepConnectedToMaster(ctx)
+	b.masterClient.WaitUntilConnected(ctx)
 
 	if *b.write {
 		benchWrite()
@@ -210,7 +212,7 @@ func writeFiles(idChan chan int, fileIdLineChan chan string, s *stat) {
 				}
 				var jwtAuthorization security.EncodedJwt
 				if isSecure {
-					jwtAuthorization = operation.LookupJwt(b.masterClient.GetMaster(), b.grpcDialOption, df.fp.Fid)
+					jwtAuthorization = operation.LookupJwt(b.masterClient.GetMaster(context.Background()), b.grpcDialOption, df.fp.Fid)
 				}
 				if e := util.Delete(fmt.Sprintf("http://%s/%s", df.fp.Server, df.fp.Fid), string(jwtAuthorization)); e == nil {
 					s.completed++
diff --git a/weed/command/download.go b/weed/command/download.go
index de33643fc..060be9f14 100644
--- a/weed/command/download.go
+++ b/weed/command/download.go
@@ -1,6 +1,7 @@
 package command
 
 import (
+	"context"
 	"fmt"
 	"io"
 	"net/http"
@@ -50,7 +51,7 @@ func runDownload(cmd *Command, args []string) bool {
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
 
 	for _, fid := range args {
-		if e := downloadToFile(func() pb.ServerAddress { return pb.ServerAddress(*d.server) }, grpcDialOption, fid, util.ResolvePath(*d.dir)); e != nil {
+		if e := downloadToFile(func(_ context.Context) pb.ServerAddress { return pb.ServerAddress(*d.server) }, grpcDialOption, fid, util.ResolvePath(*d.dir)); e != nil {
 			fmt.Println("Download Error: ", fid, e)
 		}
 	}
diff --git a/weed/command/filer_copy.go b/weed/command/filer_copy.go
index 83c5b167e..df5e002c5 100644
--- a/weed/command/filer_copy.go
+++ b/weed/command/filer_copy.go
@@ -472,7 +472,7 @@ func (worker *FileCopyWorker) uploadFileInChunks(task FileCopyTask, f *os.File,
 		for _, chunk := range chunks {
 			fileIds = append(fileIds, chunk.FileId)
 		}
-		operation.DeleteFiles(func() pb.ServerAddress {
+		operation.DeleteFiles(func(_ context.Context) pb.ServerAddress {
 			return pb.ServerAddress(copy.masters[0])
 		}, false, worker.options.grpcDialOption, fileIds)
 		return uploadError
diff --git a/weed/command/master.go b/weed/command/master.go
index 6a32b8abe..f80d8faeb 100644
--- a/weed/command/master.go
+++ b/weed/command/master.go
@@ -1,6 +1,7 @@
 package command
 
 import (
+	"context"
 	"fmt"
 	"net/http"
 	"os"
@@ -218,7 +219,7 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 		}()
 	}
 
-	go ms.MasterClient.KeepConnectedToMaster()
+	go ms.MasterClient.KeepConnectedToMaster(context.Background())
 
 	// start http server
 	var (
diff --git a/weed/command/master_follower.go b/weed/command/master_follower.go
index 64583c602..7217aff0b 100644
--- a/weed/command/master_follower.go
+++ b/weed/command/master_follower.go
@@ -140,7 +140,7 @@ func startMasterFollower(masterOptions MasterOptions) {
 	}
 	go grpcS.Serve(grpcL)
 
-	go ms.MasterClient.KeepConnectedToMaster()
+	go ms.MasterClient.KeepConnectedToMaster(context.Background())
 
 	// start http server
 	httpS := &http.Server{Handler: r}
diff --git a/weed/command/upload.go b/weed/command/upload.go
index 1f03f7b5a..3e6b8f9a2 100644
--- a/weed/command/upload.go
+++ b/weed/command/upload.go
@@ -97,7 +97,7 @@ func runUpload(cmd *Command, args []string) bool {
 					if e != nil {
 						return e
 					}
-					results, e := operation.SubmitFiles(func() pb.ServerAddress { return pb.ServerAddress(*upload.master) }, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
+					results, e := operation.SubmitFiles(func(_ context.Context) pb.ServerAddress { return pb.ServerAddress(*upload.master) }, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
 					bytes, _ := json.Marshal(results)
 					fmt.Println(string(bytes))
 					if e != nil {
@@ -119,7 +119,7 @@ func runUpload(cmd *Command, args []string) bool {
 			fmt.Println(e.Error())
 			return false
 		}
-		results, err := operation.SubmitFiles(func() pb.ServerAddress { return pb.ServerAddress(*upload.master) }, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
+		results, err := operation.SubmitFiles(func(_ context.Context) pb.ServerAddress { return pb.ServerAddress(*upload.master) }, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
 		if err != nil {
 			fmt.Println(err.Error())
 			return false