I'm having this intermittent error come up when making a call from a Dart gRPC client to a Go gRPC server. The exact error message is:
gRPC Error (code: 2, codeName: UNKNOWN, message: HTTP/2 error: Stream error: Stream was terminated by peer (errorCode: 2)
This seems to occur frequently on creating the client stub with the channel and making a call to the server. Subsequent calls seems to work fine with a response returned correctly to the client. Then this error intermittently pops up again every n-th call (could be after 5 calls, 10 calls sometimes no errors until the 20th call).
When I use a different client (eg: BloomRPC or Java app I wrote), this does not happen no matter how hard or fast I spam the calls to the server. This kind of implies the server is probably not the issue.
Can anyone shine a light on what might be happening? Or provide some hints as to where to start looking/debugging? I've tried stepping through the code, but not really able to follow what is happening when the gRPC call is made/returned.
Steps in the client code:
create ClientChannel with ip, ports
final cc = ClientChannel(serverIP,
port: serverPort,
options:
const ChannelOptions(credentials: ChannelCredentials.insecure()
));
created a stub based on above channel
_userQueryStub = UserQueryGRPCClient(cc,
options: CallOptions(timeout: Duration(seconds: 30)));
call function from stub (repeatedly)
GetUserInformationRequest request = GetUserInformationRequest(userId: userId);
GetUserInformationResponse response = await _userQueryStub.getUserInformation(request);
Any help will be greatly appreciated!