How to increase gRPC message size

OSS Support
1

Hi,

I am currently facing this error, while I try to test a grpc service:

Error:
{“code”:8,“message”:“grpc: received message larger than max (1179204128 vs. 4194304)”,“details”:}

Is there a way to increase maximum received grpc message size?

Thanks,
Akshayini

3

Hi @Akshayini !

You should be able to tune that by using connection parametrs Client.connect(address [,params])

Let me know if that answers,
Cheers!

4

Hi @olegbespalov ,

Thank you for the reply.

I tried to increase the message size by using connect params, but now I get this error:

“code”:13,“message”:“unexpected EOF”,“details”:

Could you please help.

Thanks,
Akshayini

5

@Akshayini could you please provide more details about the case? :thinking:

Could you give a minimum example of the script you’re using (without any business details)? Do you use GRPC reflection, or what is a proto definition? Does the error repeat each time?

Thanks!

6

@olegbespalov , I am trying to test a simple unary gRPC service build using C#.

So through my k6 script, I first load the proto files, connect to the gRPC server (where I also give maxReceiveSize param) then invoke the service with empty data and I pass Authorization Bearer token as metadata.

Ideally the service should return me two GUIDs, but here I am getting those GUIDs as null and the error message as: “code”:13,“message”:“unexpected EOF”.

No I am not using GRPC reflection and yes the error is always repeated.

Hope this helps.

7

Considering these details and the details from the first post, I’d like to ask if the service you are testing is responding well :thinking:

Two GUIDs don’t sound like 1.17 Gb (1179204128 bytes). If you request your service using the grpcurl does it respond appropriately?