Spring Websocket服务器在发送大量数据时重置连接

时间：2017-08-02 20:19:25

标签： java spring tomcat spring-websocket tyrus

我在尝试从Spring Websocket服务器（托管在Tomcat上）发送数据时遇到问题，似乎在尝试发送消息的过程中重置了连接。发送大量二进制数据时，错误似乎发生得更多（此处示例中为5526584字节），但我已经看到它发生在文本通道上，并且数据也较少。然而，发送超过5左右的MB似乎相对一致地崩溃。

编辑 - 结束编辑块下面是服务器端代码和错误。我现在认为错误是在服务器端引起的。我输入了一些时间戳，看起来客户端在服务器抛出错误之前收到onClose错误。关键原因是Buffer Overflow。这是我设置websocket容器并启动会话的代码：

WebSocketContainer c = ContainerProvider.getWebSocketContainer();


    c.setDefaultMaxTextMessageBufferSize(128000000); // Should we enable these on the client?
    c.setDefaultMaxBinaryMessageBufferSize(128000000); // Should we enable these on the client?
    c.setDefaultMaxSessionIdleTimeout(500000);
    c.setAsyncSendTimeout(50000);
    session = c.connectToServer(this, config, new URI("wss://" + SERVER + ":" + PORT + WEBSOCKETENDPOINT));

我后来打印出会话MaxBuffer大小，并且它们都按预期设置为128000000。

结束编辑

这是堆栈跟踪：

java.io.IOException: An established connection was aborted by the software in your host machine
at sun.nio.ch.SocketDispatcher.write0(Native Method)
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51)
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
at sun.nio.ch.IOUtil.write(IOUtil.java:65)
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
at org.apache.tomcat.util.net.SecureNioChannel.flush(SecureNioChannel.java:143)
at org.apache.tomcat.util.net.SecureNioChannel.close(SecureNioChannel.java:494)
at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.close(NioEndpoint.java:1201)
at org.apache.tomcat.websocket.server.WsRemoteEndpointImplServer.doClose(WsRemoteEndpointImplServer.java:167)
at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.close(WsRemoteEndpointImplBase.java:710)
at org.apache.tomcat.websocket.WsSession.sendCloseMessage(WsSession.java:599)
at org.apache.tomcat.websocket.WsSession.doClose(WsSession.java:480)
at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendMessageBlock(WsRemoteEndpointImplBase.java:313)
at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendMessageBlock(WsRemoteEndpointImplBase.java:258)
at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendPartialBytes(WsRemoteEndpointImplBase.java:161)
at org.apache.tomcat.websocket.WsRemoteEndpointBasic.sendBinary(WsRemoteEndpointBasic.java:56)
at org.springframework.web.socket.adapter.standard.StandardWebSocketSession.sendBinaryMessage(StandardWebSocketSession.java:202)
at org.springframework.web.socket.adapter.AbstractWebSocketSession.sendMessage(AbstractWebSocketSession.java:107)
at org.springframework.web.socket.handler.ConcurrentWebSocketSessionDecorator.tryFlushMessageBuffer(ConcurrentWebSocketSessionDecorator.java:132)
at org.springframework.web.socket.handler.ConcurrentWebSocketSessionDecorator.sendMessage(ConcurrentWebSocketSessionDecorator.java:104)
at myHandlerpart2.handleBinaryMessage(myHandlerpart2.java:252)
at myHandler.handleMessageFromClient(myHandler.java:200)
at org.springframework.web.socket.messaging.SubProtocolWebSocketHandler.handleMessage(SubProtocolWebSocketHandler.java:307)
at org.springframework.web.socket.handler.WebSocketHandlerDecorator.handleMessage(WebSocketHandlerDecorator.java:75)
at org.springframework.web.socket.handler.LoggingWebSocketHandlerDecorator.handleMessage(LoggingWebSocketHandlerDecorator.java:56)
at org.springframework.web.socket.handler.ExceptionWebSocketHandlerDecorator.handleMessage(ExceptionWebSocketHandlerDecorator.java:58)
at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.handleBinaryMessage(StandardWebSocketHandlerAdapter.java:120)
at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.access$100(StandardWebSocketHandlerAdapter.java:42)
at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter$4.onMessage(StandardWebSocketHandlerAdapter.java:87)
at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter$4.onMessage(StandardWebSocketHandlerAdapter.java:84)
at org.apache.tomcat.websocket.WsFrameBase.sendMessageBinary(WsFrameBase.java:576)
at org.apache.tomcat.websocket.server.WsFrameServer.sendMessageBinary(WsFrameServer.java:122)
at org.apache.tomcat.websocket.WsFrameBase.processDataBinary(WsFrameBase.java:535)
at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:294)
at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:127)
at org.apache.tomcat.websocket.server.WsFrameServer.onDataAvailable(WsFrameServer.java:73)
at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.upgradeDispatch(WsHttpUpgradeHandler.java:148)
at org.apache.coyote.http11.upgrade.UpgradeProcessorInternal.dispatch(UpgradeProcessorInternal.java:54)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)

在我的websocket配置器中，我设置了相当宽松的缓冲区和超时

public ServletServerContainerFactoryBean createWebSocketContainer() {

ServletServerContainerFactoryBean container = new 
ServletServerContainerFactoryBean();
container.setMaxTextMessageBufferSize(128000000); //128 MB
container.setMaxBinaryMessageBufferSize(128000000); //128 MB
container.setMaxSessionIdleTimeout(500000);
container.setAsyncSendTimeout(50000);

return container;
}

我还设置了SubProtoclHandler的限制

@Override
public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {


    SubProtocolWebSocketHandler test = new SubProtocolWebSocketHandler(new DirectChannel(), clientInboundChannel());
    test.setSendBufferSizeLimit(128000000);
    test.setSendTimeLimit(50000);
    for(SubProtocolHandler handler : handlers)
    {
        test.addProtocolHandler(handler);
    }


    MyWebSocketHandshakeHandler handshaker = new MyWebSocketHandshakeHandler();


    handshaker.setSupportedProtocols(test.getSubProtocols().toArray(new String[0]));
    registry.addHandler(test, websocketEndpoint).setHandshakeHandler(handshaker)
            .addInterceptors(new HttpSessionHandshakeInterceptor()).setAllowedOrigins("*");

}

最后导致错误的实际发送如下所示

byte[] tbuf = null;
        try {
            tbuf = jsonMapper.writeValueAsBytes(demoLists.get(stage));
            ByteBuffer buf = ByteBuffer.allocate(tbuf.length);
            buf.put(tbuf);
            buf.flip();
            WebSocketMessage<ByteBuffer> ret = new BinaryMessage(buf);
            System.out.println("Binary limit: " + session.getBinaryMessageSizeLimit());
            System.out.println("Sending bytes: " + ret.getPayloadLength());
            if(session.isOpen()) {
                session.sendMessage(ret);

            } else {
                System.out.println("Session is closed already.");
            }

代码中有很多活动部分，所以如果您需要任何其他信息，请告诉我。

1 个答案:

答案 0 :(得分：2)

在做了更多研究之后，我发现了这个问题Incoming buffer size cannot be set to Tyrus client，它引导我https://tyrus-project.github.io/documentation/1.12/user-guide.html#d0e1197。显然在客户端上设置默认缓冲区大小无法正常工作。添加指南建议后，一切正常。 

ClientManager client = ClientManager.createClient(c); 
    client.getProperties().put("org.glassfish.tyrus.incomingBufferSize", 128000000); 
    session = client.connectToServer(this, config, new URI("wss://" + SERVER + ":" + PORT + WEBSOCKETENDPOINT));
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