I believe you're experiencing different timeouts in different cases. That
is, the problem you're facing of a short timeout before you use your
RPC_TIMEOUT_MS is a server-side timeout (or potentially a proxy?), but
after you set a client-side timeout, the client is observing that the
server is taking too long, and terminating the call from its side,
resulting in the RequestTimeoutException.
To confirm this, try setting the client-side timeout to something like one
minute, 60_000, and see that the error returns to the old message you were
seeing. A timeout set like this does not guarantee that the server stops
processing the request, only that the client stops waiting for it, and it
may not be appropriate for your use case at all.
With the client-side timeout set to a reasonable amount or entirely
removed, take a closer look at the error message you're getting from the
server, and any server or proxy logs you're getting. If there is a proxy,
see if you can connect directly to the server to rule out the proxy setting
this short timeout. Very likely this is a configuration on the server/proxy
that can be change to suit your requirements.
On Thursday, April 6, 2023 at 2:26:31 AM UTC-5 Dmitri wrote:
> Dear gurus,
>
> I'm learning Java and GWT and I'm facing a problem with setting timeout
> for PRC calls. I want to extend the RPC timeout before the client reports a
> failure. The code I'm using is attached below.
>
> I'm running a client in firefox and experience the following problem:
>
> I want to achieve a timeout of 20-30 seconds. However I can set the
> timeout (RPC_TIMEOUT_MS) only up to 3200mS. In case the server does not
> respond I receive the exception
> "*com.google.gwt.http.client.RequestTimeoutException:
> A request timeout has expired after 3200 ms*" accurately after defined
> time.
>
> However in case set timeout exceeds the 3300ms of above the exception is
> different "*com.google.gwt.user.client.rpc.StatusCodeException: 0*" and
> is thrown always after 3-4 seconds.
>
> What causes this exception and how can I extend the waiting time?
>
> Thank you,
> Best regards
> Dmitri
>
> The code:
> public class MyClass implements EntryPoint {
>
> private static final int RPC_TIMEOUT_MS = 3300;
>
> private static class TimeoutRequestBuilder extends RpcRequestBuilder {
> @Override
> protected RequestBuilder doCreate(String serviceEntryPoint) {
> RequestBuilder builder = super.doCreate(serviceEntryPoint);
> builder.setTimeoutMillis(RPC_TIMEOUT_MS);
> return builder;
> }
> }
>
> private static final RpcRequestBuilder requestBuilder = new
> TimeoutRequestBuilder();
> private final HubServiceAsync myService = GWT.create(HubService.class);
>
> @Override
> public void onModuleLoad() {
> ((ServiceDefTarget) hmyService).setRpcRequestBuilder(requestBuilder);
>
> final MainView mainView = new MainView(hubService);
>
> RootPanel rootPanel = RootPanel.get();
> rootPanel.add(mainView);
>
> Window.addResizeHandler(new ResizeHandler() {
> @Override
> public void onResize(ResizeEvent event) {
> mainView.resize();
> }
> });
> }
> }
>
>
>
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