[jboss-jira] [JBoss JIRA] (WFLY-3526) Servlet 3 - async-mode - onTimeout not triggered

[Günther Grill (JIRA)]

     [ https://issues.jboss.org/browse/WFLY-3526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Günther Grill updated WFLY-3526:
--------------------------------

    Description: 
With asynchronous mode of servlets a long running process never times out.

In my tests I have a async servlet which calls starts a long running process. That process take longer then the configured timeout. But here never a timeout comes. The long running process can complete.

According to the spec, the servlet should run into a timeout and the AsyncListener#onTimeout method is called for registered listeners.

But this never happens in Wildfly 8.


Here is a test servlet


{code:title=AsyncServlet.java|borderStyle=solid}

@WebServlet(urlPatterns = {"/AsyncServlet"}, asyncSupported = true)
public class AsyncServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    public AsyncServlet() {
        super();
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
        res.setContentType("text/html");

        AsyncContext ac = null;

        if (req.isAsyncStarted()) {
            ac = req.getAsyncContext();
        } else {
            ac = req.startAsync();
        }

        ac.setTimeout(5000);
        ac.addListener(new AsyncListener() {
            @Override
            public void onTimeout(AsyncEvent event) throws IOException {
                System.out.println("onTimeout");
            }
            @Override
            public void onStartAsync(AsyncEvent event) throws IOException {
                System.out.println("onStartAsync");
            }
            @Override
            public void onError(AsyncEvent event) throws IOException {
                System.out.println("onError");
            }
            @Override
            public void onComplete(AsyncEvent event) throws IOException {
                // end of async processing -> end of response time
                System.out.println("onComplete");
            }
        });

        // this processor takes longer then the timeout. e.g. 15 sec
        ac.start(new Runnable() {
			@Override
			public void run() {
				try {
					Thread.sleep(20*1000);  // working...
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
		}); // start async processing
    }
}

{code}

  was:
With asynchronous mode of servlets a long running process never times out.

In my tests I have a async servlet which calls starts a long running process. That process take longer then the configured timeout. But here never a timeout comes. The long running process can complete.

According to the spec, the servlet should run into a timeout and the AsyncListener#onTimeout method is called for registered listeners.

But this never happens in Wildfly 8.


Here is a test servlet


{code:title=AsyncServlet.java|borderStyle=solid}

@WebServlet(urlPatterns = {"/AsyncServlet"}, asyncSupported = true)
public class AsyncServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    public AsyncServlet() {
        super();
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
        res.setContentType("text/html");

        AsyncContext ac = null;

        if (req.isAsyncStarted()) {
            ac = req.getAsyncContext();
        } else {
            ac = req.startAsync();
        }

        ac.setTimeout(5000);
        ac.addListener(new AsyncListener() {
            @Override
            public void onTimeout(AsyncEvent event) throws IOException {
                System.out.println("onTimeout");
            }
            @Override
            public void onStartAsync(AsyncEvent event) throws IOException {
                System.out.println("onStartAsync");
            }
            @Override
            public void onError(AsyncEvent event) throws IOException {
                System.out.println("onError");
            }
            @Override
            public void onComplete(AsyncEvent event) throws IOException {
                // end of async processing -> end of response time
                System.out.println("onComplete");
            }
        });

        // this processor takes longer then the timeout. e.g. 15 sec
        ac.start(new Runnable() {
			@Override
			public void run() {
				try {
					Thread.sleep(20*1000);
				} catch (InterruptedException e) {
					e.printStackTrace();
				} // working...
			}
		}); // start async processing
    }
}

{code}



> Servlet 3 - async-mode - onTimeout not triggered
> ------------------------------------------------
>
>                 Key: WFLY-3526
>                 URL: https://issues.jboss.org/browse/WFLY-3526
>             Project: WildFly
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Server
>    Affects Versions: 8.0.0.Final, 8.1.0.Final
>            Reporter: Günther Grill
>            Assignee: Jason Greene
>              Labels: async, asynchronous, servlet, timeout
>
> With asynchronous mode of servlets a long running process never times out.
> In my tests I have a async servlet which calls starts a long running process. That process take longer then the configured timeout. But here never a timeout comes. The long running process can complete.
> According to the spec, the servlet should run into a timeout and the AsyncListener#onTimeout method is called for registered listeners.
> But this never happens in Wildfly 8.
> Here is a test servlet
> {code:title=AsyncServlet.java|borderStyle=solid}
> @WebServlet(urlPatterns = {"/AsyncServlet"}, asyncSupported = true)
> public class AsyncServlet extends HttpServlet {
>     private static final long serialVersionUID = 1L;
>     public AsyncServlet() {
>         super();
>     }
>     @Override
>     protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
>         res.setContentType("text/html");
>         AsyncContext ac = null;
>         if (req.isAsyncStarted()) {
>             ac = req.getAsyncContext();
>         } else {
>             ac = req.startAsync();
>         }
>         ac.setTimeout(5000);
>         ac.addListener(new AsyncListener() {
>             @Override
>             public void onTimeout(AsyncEvent event) throws IOException {
>                 System.out.println("onTimeout");
>             }
>             @Override
>             public void onStartAsync(AsyncEvent event) throws IOException {
>                 System.out.println("onStartAsync");
>             }
>             @Override
>             public void onError(AsyncEvent event) throws IOException {
>                 System.out.println("onError");
>             }
>             @Override
>             public void onComplete(AsyncEvent event) throws IOException {
>                 // end of async processing -> end of response time
>                 System.out.println("onComplete");
>             }
>         });
>         // this processor takes longer then the timeout. e.g. 15 sec
>         ac.start(new Runnable() {
> 			@Override
> 			public void run() {
> 				try {
> 					Thread.sleep(20*1000);  // working...
> 				} catch (InterruptedException e) {
> 					e.printStackTrace();
> 				}
> 			}
> 		}); // start async processing
>     }
> }
> {code}



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