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Increase gRPC Max send msg size on gNMI server end and gnmi_get client end #227

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Increase gRPC Max send msg size on gNMI server end and gnmi_get client end #227

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8be5729
Update telemetry.go
Sreevanich16 Jun 24, 2026
e5b61ca
increasing grpc recieve msg size limit on gnmi_get client side
Jun 29, 2026
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15 changes: 10 additions & 5 deletions patches/gnmi_get.patch
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Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@
pb "github.com/openconfig/gnmi/proto/gnmi"
)

@@ -63,16 +64,20 @@
@@ -63,19 +64,25 @@
xPathFlags arrayFlags
pbPathFlags arrayFlags
pbModelDataFlags arrayFlags
Expand All @@ -28,6 +28,7 @@
timeOut = flag.Duration("time_out", 10*time.Second, "Timeout for the Get request, 10 seconds by default")
encodingName = flag.String("encoding", "JSON_IETF", "value encoding format to be used")
+ jwtToken = flag.String("jwt_token", "", "JWT Token if required")
+ maxRecvMsgSize = flag.Int("max_recv_msg_size", 8*1024*1024, "Maximum receive message size in bytes")
)

func main() {
Expand All @@ -38,7 +39,11 @@
flag.Parse()

opts := credentials.ClientCredentials(*targetName)
@@ -87,6 +92,10 @@
+ opts = append(opts, grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(*maxRecvMsgSize)))
conn, err := grpc.Dial(*targetAddr, opts...)
if err != nil {
log.Exitf("Dialing to %q failed: %v", *targetAddr, err)
@@ -87,6 +94,10 @@
ctx, cancel := context.WithTimeout(context.Background(), *timeOut)
defer cancel()

Expand All @@ -49,7 +54,7 @@
encoding, ok := pb.Encoding_value[*encodingName]
if !ok {
var gnmiEncodingList []string
@@ -96,12 +105,14 @@
@@ -96,12 +107,14 @@
log.Exitf("Supported encodings: %s", strings.Join(gnmiEncodingList, ", "))
}

Expand All @@ -65,15 +70,15 @@
}
pbPathList = append(pbPathList, pbPath)
}
@@ -120,6 +131,7 @@
@@ -120,6 +133,7 @@
}

getRequest := &pb.GetRequest{
+ Prefix: &prefix,
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Encoding: pb.Encoding(encoding),
Path: pbPathList,
UseModels: pbModelDataList,
@@ -135,4 +147,20 @@
@@ -135,4 +149,20 @@

fmt.Println("== getResponse:")
utils.PrintProto(getResponse)
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2 changes: 1 addition & 1 deletion telemetry/telemetry.go
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Original file line number Diff line number Diff line change
Expand Up @@ -207,7 +207,7 @@ func setupFlags(fs *flag.FlagSet) (*TelemetryConfig, *gnmi.Config, error) {
AuthzPolicyFile: fs.String("authorization_policy_file", "/keys/authorization_policy.json", "Full path name of the JSON authorization policy file."),
EnableStreamMultiplexing: fs.Bool("enable_stream_multiplexing", false, "Allow multiple Subscribe RPCs on a single TCP connection via HTTP/2 stream multiplexing"),
MaxRecvMsgSize: fs.Int("max_recv_msg_size", 4*1024*1024, "Maximum message size in bytes that the server can receive"),
MaxSendMsgSize: fs.Int("max_send_msg_size", 4*1024*1024, "Maximum message size in bytes that the server can send"),
MaxSendMsgSize: fs.Int("max_send_msg_size", 8*1024*1024, "Maximum message size in bytes that the server can send"),
}

fs.Var(&telemetryCfg.UserAuth, "client_auth", "Client auth mode(s) - none,cert,password")
Expand Down
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