Large size Websocket over Stomp (with Sockjs) Messages not getting delivered

[insuresense]

We have a Spring backend Application with Angular Frontend.

When sending msgs from backend to frontend, some large msgs (size ard 80 - 125KB) are not being delivered. When i cut down the incoming object and make it smaller (mostly <64KB) it gets delivered.

@stomp/rx-stomp library is being used to send websocket msgs to backend. Here are some relevant configurations

export const myRxStompConfig: RxStompConfig = {
  webSocketFactory: () => {
     return new SockJS('/api/process/websocket');
    },
  logRawCommunication: false,
  splitLargeFrames: true,
  maxWebSocketChunkSize: 8 * 1024,
}

Here are some relevant configurations on backend side

public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {
    @Override
    public void configureWebSocketTransport(WebSocketTransportRegistration registry){
        registry.setMessageSizeLimit(8192 * 1024); // default : 64 * 1024
        registry.setSendTimeLimit(20 * 10000); // default : 10 * 10000
        registry.setSendBufferSizeLimit(10 * 512 * 1024); // default : 512 * 1024
    }
	@Override
	public void registerStompEndpoints(StompEndpointRegistry registry) {
		registry.addEndpoint("/websocket").setAllowedOriginPatterns("*").withSockJS()
            .setStreamBytesLimit(1024*1024);
	}
}

[sdeleuze]

Please provide a reproducer as an attached archive or a link to a repository, with instruction on how to reproduce.

[injae-kim]

When sending msgs from backend to frontend, some large msgs (size ard 80 - 125KB) are not being delivered.
When i cut down the incoming object and make it smaller (mostly <64KB) it gets delivered.

Hi @insuresense! I think this issue will be fixed soon my PR #31970.

Currently, spring-framwork's WebSocketStompClient doesn't support to send large messages.
So large message that exceed 64KB (default size limit of web socket) is not delivered well now.

But with my PR #31970, I fix WebSocketStompClient to split large stomp message into multiple frames and send it.

"Receiving theses split multiple frames and reassemble to complete frame" is usually implemented well on stomp libraries (spring-framework also implements this receiving part well), so I think this issue will be fixed soon~! thanks! 😄

[injae-kim]

https://stackoverflow.com/questions/34343235/stomp-spring-websocket-message-exceeds-size-limit

For workaround, I think you can increase limit size of web socket message like above~!

[sdeleuze]

I think this issue will be fixed soon my PR #31970.

If that's the case, we should close this issue as a duplicate of #31970, right?

[injae-kim]

If that's the case, we should close this issue as a duplicate of #31970, right?

Yes it's correct! cause this issue will be automatically fixed by #31970.