[undertow-dev] StreamSinkChannel - repeatable writes error

[Matej Lazar]

I updatetd to XNIO 3.1.0.Beta7 and latest Undertow master.

I still have an exception

Dec 11, 2012 7:02:02 PM io.undertow.util.WorkerDispatcher$1 run
ERROR: UNDERTOW005001: An exception occurred processing the request
org.xnio.channels.FixedLengthUnderflowException: 65536 bytes remaining
	at org.xnio.channels.FixedLengthStreamSinkChannel.shutdownWrites(FixedLengthStreamSinkChannel.java:291)
	at ceylon.net.httpd.internal.HttpResponseImpl.responseDone(HttpResponseImpl.ceylon:69)
	at ceylon.net.httpd.internal.CeylonRequestHandler$AsyncInvoker$1completionHandler_.handleComplete(CeylonRequestHandler.ceylon:65)
	at ceylon.net.httpd.endpoints.StaticFileEndpoint.service(StaticFileEndpoint.ceylon:69)
	at ceylon.net.httpd.internal.CeylonRequestHandler$AsyncInvoker.run(CeylonRequestHandler.ceylon:69)
	at io.undertow.util.WorkerDispatcher$1.run(WorkerDispatcher.java:53)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:722)


Matej.



On 23/10/12 00:49, Stuart Douglas wrote:
> This should be fixed in the XNIO upstream:
> 
> https://github.com/xnio/xnio/commit/5a1ed9dff29455d78bc9beb50c6e448e1bbb6ef9
> 
> David, would we be able to get another XNIO release soonish?
> 
> Stuart
> 
> Matej Lazar wrote:
>> Hi, I'm writing an http server for Ceylon on top of undertow.
>>
>> All bytes are written to response and successfully transferred, but exception bellow occurs when shutdownWrites is called.
>>
>> Stepping through a "write" method of FixedLengthStreamSinkChannel, looks like "state" is not updated correctly, it is always subtracted only for are number of bytes written in one loop.
>>
>> Am I missing something or is it a bug ?
>>
>> byte array size is 6919638, usually there are 147456 bytes written to a response in a loop
>>
>> My code for writing bytes to response ... not quite Java, but readable ;)
>>
>>      shared actual void writeBytes(Array<Integer>  bytes) {
>>          //ByteBuffer.wrap
>>     value bb = wrapByteBuffer(bytes);
>>     value response = getResponse();
>>            
>>     variable Integer remaining := bytes.size;          
>>          while (remaining>  0) {
>>         variable Integer written := 0;   
>>         while((written := response.write(bb))>  0) {
>>             remaining -= written;
>>             try {
>>                 response.awaitWritable();
>>             } catch(JIOException e) {
>>                 //TODO
>>                 print(e);
>>             }
>>         }
>>     }
>>      }
>>
>>
>> Exception in thread "XNIO-1 task-2" java.lang.Error: org.xnio.channels.FixedLengthUnderflowException: 6815744 bytes remaining
>>     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1116)
>>     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
>>     at java.lang.Thread.run(Thread.java:722)
>> Caused by: org.xnio.channels.FixedLengthUnderflowException: 6815744 bytes remaining
>>     at org.xnio.channels.FixedLengthStreamSinkChannel.shutdownWrites(FixedLengthStreamSinkChannel.java:291)
>>     at ceylon.net.httpd.internal.HttpResponseImpl.responseDone(HttpResponseImpl.ceylon:71)
>>     at ceylon.net.httpd.internal.CeylonRequestHandler$AsyncInvoker$1completionHandler_.handleComplete(CeylonRequestHandler.ceylon:56)
>>     at ceylon.net.httpd.endpoints.StaticFileEndpoint.service(StaticFileEndpoint.ceylon:50)
>>     at ceylon.net.httpd.internal.CeylonRequestHandler$AsyncInvoker.run(CeylonRequestHandler.ceylon:60)
>>     at io.undertow.util.WorkerDispatcher$1.run(WorkerDispatcher.java:49)
>>     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
>>     ... 2 more
>>
>>
>> Thanks,
>> Matej.
>> _______________________________________________
>> undertow-dev mailing list
>> undertow-dev at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/undertow-dev