diff --git a/cmd/mirror.go b/cmd/mirror.go
index a1776df30b..e439a33087 100644
--- a/cmd/mirror.go
+++ b/cmd/mirror.go
@@ -15,6 +15,7 @@ package cmd
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -106,7 +107,7 @@ func newMirrorSignCmd() *cobra.Command {
 
 			if strings.HasPrefix(args[0], "http") {
 				client := utils.NewHTTPClient(time.Duration(timeout)*time.Second, nil)
-				data, err := client.Get(args[0])
+				data, err := client.Get(context.TODO(), args[0])
 				if err != nil {
 					return err
 				}
@@ -115,7 +116,7 @@ func newMirrorSignCmd() *cobra.Command {
 					return err
 				}
 
-				if _, err = client.Post(args[0], bytes.NewBuffer(data)); err != nil {
+				if _, err = client.Post(context.TODO(), args[0], bytes.NewBuffer(data)); err != nil {
 					return err
 				}
 
diff --git a/cmd/root.go b/cmd/root.go
index 2e55e97fdf..0a522821ad 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -241,8 +241,8 @@ func Execute() {
 
 			tiupReport.ExitCode = int32(code)
 			tiupReport.TakeMilliseconds = uint64(time.Since(start).Milliseconds())
-			tele := telemetry.NewTelemetry()
 			ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
+			tele := telemetry.NewTelemetry()
 			err := tele.Report(ctx, teleReport)
 			if environment.DebugMode {
 				if err != nil {
diff --git a/components/cluster/command/root.go b/components/cluster/command/root.go
index 9f5b45aeb6..f4c6024bb9 100644
--- a/components/cluster/command/root.go
+++ b/components/cluster/command/root.go
@@ -324,8 +324,8 @@ func Execute() {
 			}
 			clusterReport.TakeMilliseconds = uint64(time.Since(start).Milliseconds())
 			clusterReport.Command = strings.Join(teleCommand, " ")
-			tele := telemetry.NewTelemetry()
 			ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
+			tele := telemetry.NewTelemetry()
 			err := tele.Report(ctx, teleReport)
 			if environment.DebugMode {
 				if err != nil {
diff --git a/components/playground/main.go b/components/playground/main.go
index baabd28fa7..2451615439 100644
--- a/components/playground/main.go
+++ b/components/playground/main.go
@@ -632,8 +632,8 @@ func main() {
 				}
 			}
 			playgroundReport.TakeMilliseconds = uint64(time.Since(start).Milliseconds())
-			tele := telemetry.NewTelemetry()
 			ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
+			tele := telemetry.NewTelemetry()
 			err := tele.Report(ctx, teleReport)
 			if environment.DebugMode {
 				if err != nil {
diff --git a/pkg/cluster/api/dmapi.go b/pkg/cluster/api/dmapi.go
index 67e18df406..209d8285b7 100644
--- a/pkg/cluster/api/dmapi.go
+++ b/pkg/cluster/api/dmapi.go
@@ -15,6 +15,7 @@ package api
 
 import (
 	"bytes"
+	"context"
 	"crypto/tls"
 	"fmt"
 	"strings"
@@ -78,7 +79,7 @@ func (dm *DMMasterClient) getEndpoints(cmd string) (endpoints []string) {
 func (dm *DMMasterClient) getMember(endpoints []string) (*dmpb.ListMemberResponse, error) {
 	resp := &dmpb.ListMemberResponse{}
 	_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, err := dm.httpClient.Get(endpoint)
+		body, err := dm.httpClient.Get(context.TODO(), endpoint)
 		if err != nil {
 			return body, err
 		}
@@ -101,7 +102,7 @@ func (dm *DMMasterClient) getMember(endpoints []string) (*dmpb.ListMemberRespons
 func (dm *DMMasterClient) deleteMember(endpoints []string) (*dmpb.OfflineMemberResponse, error) {
 	resp := &dmpb.OfflineMemberResponse{}
 	_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, statusCode, err := dm.httpClient.Delete(endpoint, nil)
+		body, statusCode, err := dm.httpClient.Delete(context.TODO(), endpoint, nil)
 
 		if statusCode == 404 || bytes.Contains(body, []byte("not exists")) {
 			zap.L().Debug("member to offline does not exist, ignore.")
diff --git a/pkg/cluster/api/pdapi.go b/pkg/cluster/api/pdapi.go
index d0e2ca5308..3d90510c5a 100644
--- a/pkg/cluster/api/pdapi.go
+++ b/pkg/cluster/api/pdapi.go
@@ -15,6 +15,7 @@ package api
 
 import (
 	"bytes"
+	"context"
 	"crypto/tls"
 	"encoding/json"
 	"errors"
@@ -62,7 +63,7 @@ func (pc *PDClient) tryIdentifyVersion() {
 	endpoints := pc.getEndpoints(pdVersionURI)
 	response := map[string]string{}
 	_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, err := pc.httpClient.Get(endpoint)
+		body, err := pc.httpClient.Get(context.TODO(), endpoint)
 		if err != nil {
 			return body, err
 		}
@@ -150,7 +151,7 @@ func (pc *PDClient) CheckHealth() error {
 	endpoints := pc.getEndpoints(pdPingURI)
 
 	_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, err := pc.httpClient.Get(endpoint)
+		body, err := pc.httpClient.Get(context.TODO(), endpoint)
 		if err != nil {
 			return body, err
 		}
@@ -174,7 +175,7 @@ func (pc *PDClient) GetStores() (*StoresInfo, error) {
 	storesInfo := StoresInfo{}
 
 	_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, err := pc.httpClient.Get(endpoint)
+		body, err := pc.httpClient.Get(context.TODO(), endpoint)
 		if err != nil {
 			return body, err
 		}
@@ -267,7 +268,7 @@ func (pc *PDClient) GetLeader() (*pdpb.Member, error) {
 	leader := pdpb.Member{}
 
 	_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, err := pc.httpClient.Get(endpoint)
+		body, err := pc.httpClient.Get(context.TODO(), endpoint)
 		if err != nil {
 			return body, err
 		}
@@ -288,7 +289,7 @@ func (pc *PDClient) GetMembers() (*pdpb.GetMembersResponse, error) {
 	members := pdpb.GetMembersResponse{}
 
 	_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, err := pc.httpClient.Get(endpoint)
+		body, err := pc.httpClient.Get(context.TODO(), endpoint)
 		if err != nil {
 			return body, err
 		}
@@ -312,7 +313,7 @@ func (pc *PDClient) GetConfig() (map[string]interface{}, error) {
 	pdConfig := map[string]interface{}{}
 
 	_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, err := pc.httpClient.Get(endpoint)
+		body, err := pc.httpClient.Get(context.TODO(), endpoint)
 		if err != nil {
 			return body, err
 		}
@@ -358,7 +359,7 @@ func (pc *PDClient) EvictPDLeader(retryOpt *utils.RetryOption) error {
 	endpoints := pc.getEndpoints(cmd)
 
 	_, err = tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, err := pc.httpClient.Post(endpoint, nil)
+		body, err := pc.httpClient.Post(context.TODO(), endpoint, nil)
 		if err != nil {
 			return body, err
 		}
@@ -438,7 +439,7 @@ func (pc *PDClient) EvictStoreLeader(host string, retryOpt *utils.RetryOption, c
 	endpoints := pc.getEndpoints(pdSchedulersURI)
 
 	_, err = tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		return pc.httpClient.Post(endpoint, bytes.NewBuffer(scheduler))
+		return pc.httpClient.Post(context.TODO(), endpoint, bytes.NewBuffer(scheduler))
 	})
 	if err != nil {
 		return err
@@ -498,7 +499,7 @@ func (pc *PDClient) RemoveStoreEvict(host string) error {
 	endpoints := pc.getEndpoints(cmd)
 
 	_, err = tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, statusCode, err := pc.httpClient.Delete(endpoint, nil)
+		body, statusCode, err := pc.httpClient.Delete(context.TODO(), endpoint, nil)
 		if err != nil {
 			if statusCode == http.StatusNotFound || bytes.Contains(body, []byte("scheduler not found")) {
 				log.Debugf("Store leader evicting scheduler does not exist, ignore.")
@@ -533,7 +534,7 @@ func (pc *PDClient) DelPD(name string, retryOpt *utils.RetryOption) error {
 	endpoints := pc.getEndpoints(cmd)
 
 	_, err = tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, statusCode, err := pc.httpClient.Delete(endpoint, nil)
+		body, statusCode, err := pc.httpClient.Delete(context.TODO(), endpoint, nil)
 		if err != nil {
 			if statusCode == http.StatusNotFound || bytes.Contains(body, []byte("not found, pd")) {
 				log.Debugf("PD node does not exist, ignore: %s", body)
@@ -620,7 +621,7 @@ func (pc *PDClient) DelStore(host string, retryOpt *utils.RetryOption) error {
 	endpoints := pc.getEndpoints(cmd)
 
 	_, err = tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, statusCode, err := pc.httpClient.Delete(endpoint, nil)
+		body, statusCode, err := pc.httpClient.Delete(context.TODO(), endpoint, nil)
 		if err != nil {
 			if statusCode == http.StatusNotFound || bytes.Contains(body, []byte("not found")) {
 				log.Debugf("store %d %s does not exist, ignore: %s", storeID, host, body)
@@ -673,7 +674,7 @@ func (pc *PDClient) DelStore(host string, retryOpt *utils.RetryOption) error {
 func (pc *PDClient) updateConfig(url string, body io.Reader) error {
 	endpoints := pc.getEndpoints(url)
 	_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		return pc.httpClient.Post(endpoint, body)
+		return pc.httpClient.Post(context.TODO(), endpoint, body)
 	})
 	return err
 }
@@ -687,7 +688,7 @@ func (pc *PDClient) UpdateReplicateConfig(body io.Reader) error {
 func (pc *PDClient) GetReplicateConfig() ([]byte, error) {
 	endpoints := pc.getEndpoints(pdConfigReplicate)
 	return tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		return pc.httpClient.Get(endpoint)
+		return pc.httpClient.Get(context.TODO(), endpoint)
 	})
 }
 
@@ -744,7 +745,7 @@ func (pc *PDClient) CheckRegion(state string) (*RegionsInfo, error) {
 	regionsInfo := RegionsInfo{}
 
 	_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
-		body, err := pc.httpClient.Get(endpoint)
+		body, err := pc.httpClient.Get(context.TODO(), endpoint)
 		if err != nil {
 			return body, err
 		}
diff --git a/pkg/cluster/spec/util.go b/pkg/cluster/spec/util.go
index a859706455..0e1a523ccb 100644
--- a/pkg/cluster/spec/util.go
+++ b/pkg/cluster/spec/util.go
@@ -15,6 +15,7 @@ package spec
 
 import (
 	"bytes"
+	"context"
 	"crypto/tls"
 	"fmt"
 	"path/filepath"
@@ -136,7 +137,7 @@ func statusByHost(host string, port int, path string, tlsCfg *tls.Config) string
 	url := fmt.Sprintf("%s://%s:%d%s", scheme, host, port, path)
 
 	// body doesn't have any status section needed
-	body, err := client.Get(url)
+	body, err := client.Get(context.TODO(), url)
 	if err != nil || body == nil {
 		return "Down"
 	}
@@ -153,7 +154,7 @@ func UptimeByHost(host string, port int, tlsCfg *tls.Config) time.Duration {
 
 	client := utils.NewHTTPClient(statusQueryTimeout, tlsCfg)
 
-	body, err := client.Get(url)
+	body, err := client.Get(context.TODO(), url)
 	if err != nil || body == nil {
 		return 0
 	}
diff --git a/pkg/cluster/template/install/local_install.sh.go b/pkg/cluster/template/install/local_install.sh.go
index eddaa98e43..a5a2a45497 100644
--- a/pkg/cluster/template/install/local_install.sh.go
+++ b/pkg/cluster/template/install/local_install.sh.go
@@ -83,6 +83,10 @@ fi
 
 chmod 755 "$bin_dir/tiup"
 
+# telemetry is not needed for offline installations
+"$bin_dir/tiup" telemetry disable
+
+# set mirror to the local path
 "$bin_dir/tiup" mirror set ${script_dir}
 
 bold=$(tput bold 2>/dev/null)
diff --git a/pkg/repository/store/txn.go b/pkg/repository/store/txn.go
index e0de561fb8..73954be1c0 100644
--- a/pkg/repository/store/txn.go
+++ b/pkg/repository/store/txn.go
@@ -15,6 +15,7 @@ package store
 
 import (
 	"bytes"
+	"context"
 	"fmt"
 	"io"
 	"os"
@@ -161,7 +162,7 @@ func (t *localTxn) ReadManifest(filename string, role v1manifest.ValidManifest)
 	case os.IsNotExist(err) && t.store.upstream != "":
 		url := fmt.Sprintf("%s/%s", t.store.upstream, filename)
 		client := utils.NewHTTPClient(time.Minute, nil)
-		body, err := client.Get(url)
+		body, err := client.Get(context.TODO(), url)
 		if err != nil {
 			return nil, errors.Annotatef(err, "fetch %s", url)
 		}
diff --git a/pkg/telemetry/telemetry.go b/pkg/telemetry/telemetry.go
index 706a427d08..f6a1c7f102 100644
--- a/pkg/telemetry/telemetry.go
+++ b/pkg/telemetry/telemetry.go
@@ -48,7 +48,7 @@ func (t *Telemetry) Report(ctx context.Context, msg *Report) error {
 		return errors.AddStack(err)
 	}
 
-	if _, err = t.cli.Post(t.url, bytes.NewReader(dst)); err != nil {
+	if _, err = t.cli.Post(ctx, t.url, bytes.NewReader(dst)); err != nil {
 		return errors.AddStack(err)
 	}
 
diff --git a/pkg/telemetry/telemetry_test.go b/pkg/telemetry/telemetry_test.go
index 14e32ad943..9aa0c9a201 100644
--- a/pkg/telemetry/telemetry_test.go
+++ b/pkg/telemetry/telemetry_test.go
@@ -62,10 +62,10 @@ func (s *TelemetrySuite) TestReport(c *check.C) {
 
 	msg := new(Report)
 
-	err := tele.Report(context.Background(), msg)
+	err := tele.Report(context.TODO(), msg)
 	c.Assert(err, check.NotNil)
 
 	msg.EventUUID = "dfdfdf"
-	err = tele.Report(context.Background(), msg)
+	err = tele.Report(context.TODO(), msg)
 	c.Assert(err, check.IsNil)
 }
diff --git a/pkg/utils/http_client.go b/pkg/utils/http_client.go
index 034ed462b5..0f0065b217 100644
--- a/pkg/utils/http_client.go
+++ b/pkg/utils/http_client.go
@@ -14,6 +14,7 @@
 package utils
 
 import (
+	"context"
 	"crypto/tls"
 	"fmt"
 	"io"
@@ -36,7 +37,7 @@ func NewHTTPClient(timeout time.Duration, tlsConfig *tls.Config) *HTTPClient {
 	}
 	tr := &http.Transport{
 		TLSClientConfig: tlsConfig,
-		Dial:            (&net.Dialer{Timeout: 5 * time.Second}).Dial,
+		Dial:            (&net.Dialer{Timeout: 3 * time.Second}).Dial,
 	}
 	// prefer to use the inner http proxy
 	httpProxy := os.Getenv("TIUP_INNER_HTTP_PROXY")
@@ -57,8 +58,16 @@ func NewHTTPClient(timeout time.Duration, tlsConfig *tls.Config) *HTTPClient {
 }
 
 // Get fetch an URL with GET method and returns the response
-func (c *HTTPClient) Get(url string) ([]byte, error) {
-	res, err := c.client.Get(url)
+func (c *HTTPClient) Get(ctx context.Context, url string) ([]byte, error) {
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	if ctx != nil {
+		req = req.WithContext(ctx)
+	}
+	res, err := c.client.Do(req)
 	if err != nil {
 		return nil, err
 	}
@@ -68,8 +77,17 @@ func (c *HTTPClient) Get(url string) ([]byte, error) {
 }
 
 // Post send a POST request to the url and returns the response
-func (c *HTTPClient) Post(url string, body io.Reader) ([]byte, error) {
-	res, err := c.client.Post(url, "application/json", body)
+func (c *HTTPClient) Post(ctx context.Context, url string, body io.Reader) ([]byte, error) {
+	req, err := http.NewRequest("POST", url, body)
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Content-Type", "application/json")
+
+	if ctx != nil {
+		req = req.WithContext(ctx)
+	}
+	res, err := c.client.Do(req)
 	if err != nil {
 		return nil, err
 	}
@@ -79,13 +97,16 @@ func (c *HTTPClient) Post(url string, body io.Reader) ([]byte, error) {
 }
 
 // Delete send a DELETE request to the url and returns the response and status code.
-func (c *HTTPClient) Delete(url string, body io.Reader) ([]byte, int, error) {
+func (c *HTTPClient) Delete(ctx context.Context, url string, body io.Reader) ([]byte, int, error) {
 	var statusCode int
 	req, err := http.NewRequest("DELETE", url, body)
 	if err != nil {
 		return nil, statusCode, err
 	}
 
+	if ctx != nil {
+		req = req.WithContext(ctx)
+	}
 	res, err := c.client.Do(req)
 	if err != nil {
 		return nil, statusCode, err