[ https://issues.jboss.org/browse/WFLY-4696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13089103#comment-13089103 ]
Carlos Rodríguez Aguado commented on WFLY-4696:
-----------------------------------------------
The problem is not solved with this patch. We added the fixed code to version 8.2 and any improvement noted.
We are going to test it again with version 9.0.0 Final and publish another video with the problem (if reproduced).
> OutOfMemory DirectByteBuffer XNIO
> ---------------------------------
>
> Key: WFLY-4696
> URL: https://issues.jboss.org/browse/WFLY-4696
> Project: WildFly
> Issue Type: Bug
> Components: IO, Web (Undertow)
> Affects Versions: 8.1.0.Final, 8.2.0.Final
> Reporter: Carlos Rodríguez Aguado
> Assignee: Stuart Douglas
> Priority: Blocker
> Fix For: 9.0.0.CR2, 10.0.0.Alpha3
>
> Attachments: wlfy.mp4
>
>
> I get this errors constantly in my server when a web connection is interrupted from the browser for instance:
> 11:50:45,301 ERROR [stderr] (default task-339) Exception in thread "default task-339" java.nio.BufferOverflowException
> 11:50:45,301 ERROR [stderr] (default task-339) at java.nio.DirectByteBuffer.put(DirectByteBuffer.java:363)
> 11:50:45,301 ERROR [stderr] (default task-339) at java.nio.ByteBuffer.put(ByteBuffer.java:859)
> 11:50:45,301 ERROR [stderr] (default task-339) at io.undertow.util.HttpString.appendTo(HttpString.java:204)
> 11:50:45,301 ERROR [stderr] (default task-339) at io.undertow.server.protocol.http.HttpResponseConduit.processWrite(HttpResponseConduit.java:150)
> 11:50:45,301 ERROR [stderr] (default task-339) at io.undertow.server.protocol.http.HttpResponseConduit.flush(HttpResponseConduit.java:629)
> 11:50:45,301 ERROR [stderr] (default task-339) at io.undertow.conduits.AbstractFixedLengthStreamSinkConduit.flush(AbstractFixedLengthStreamSinkConduit.java:205)
> 11:50:45,301 ERROR [stderr] (default task-339) at org.xnio.conduits.ConduitStreamSinkChannel.flush(ConduitStreamSinkChannel.java:162)
> 11:50:45,301 ERROR [stderr] (default task-339) at io.undertow.channels.DetachableStreamSinkChannel.flush(DetachableStreamSinkChannel.java:100)
> 11:50:45,301 ERROR [stderr] (default task-339) at io.undertow.server.HttpServerExchange.closeAndFlushResponse(HttpServerExchange.java:1489)
> 11:50:45,317 ERROR [stderr] (default task-339) at io.undertow.server.HttpServerExchange.endExchange(HttpServerExchange.java:1470)
> 11:50:45,317 ERROR [stderr] (default task-339) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:201)
> 11:50:45,317 ERROR [stderr] (default task-339) at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:727)
> 11:50:45,317 ERROR [stderr] (default task-339) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 11:50:45,317 ERROR [stderr] (default task-339) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 11:50:45,317 ERROR [stderr] (default task-339) at java.lang.Thread.run(Thread.java:745)
> And then, I think this errors lead to a OutOfMemory crash:
> 14:23:09,592 ERROR [org.xnio.listener] (default I/O-3) XNIO001007: A channel event listener threw an exception: java.lang.OutOfMemoryError
> at sun.misc.Unsafe.allocateMemory(Native Method) [rt.jar:1.8.0_20]
> at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:127) [rt.jar:1.8.0_20]
> at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311) [rt.jar:1.8.0_20]
> at org.xnio.BufferAllocator$2.allocate(BufferAllocator.java:57) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.BufferAllocator$2.allocate(BufferAllocator.java:55) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.ByteBufferSlicePool.allocate(ByteBufferSlicePool.java:149) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.ssl.JsseSslConduitEngine.<init>(JsseSslConduitEngine.java:143) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.ssl.JsseSslStreamConnection.<init>(JsseSslStreamConnection.java:71) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.ssl.JsseAcceptingSslStreamConnection.accept(JsseAcceptingSslStreamConnection.java:45) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.ssl.JsseAcceptingSslStreamConnection.accept(JsseAcceptingSslStreamConnection.java:37) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.ssl.AbstractAcceptingSslChannel.accept(AbstractAcceptingSslChannel.java:187) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:289) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:286) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.ChannelListeners$DelegatingChannelListener.handleEvent(ChannelListeners.java:1092) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) [xnio-api-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.nio.NioTcpServerHandle.handleReady(NioTcpServerHandle.java:53) [xnio-nio-3.2.2.Final.jar:3.2.2.Final]
> at org.xnio.nio.WorkerThread.run(WorkerThread.java:539) [xnio-nio-3.2.2.Final.jar:3.2.2.Final]
> This is the trace for version 8.2 of WildFly:
> 17:17:16,957 ERROR [io.undertow.request] (default task-49) Undertow request failed HttpServerExchange{ GET /modulab/servlet/ShowPDFReportServlet}: java.nio.BufferOverflowException
> at java.nio.DirectByteBuffer.put(DirectByteBuffer.java:363) [rt.jar:1.8.0_20]
> at java.nio.ByteBuffer.put(ByteBuffer.java:859) [rt.jar:1.8.0_20]
> at io.undertow.util.HttpString.appendTo(HttpString.java:204)
> at io.undertow.server.protocol.http.HttpResponseConduit.processWrite(HttpResponseConduit.java:166)
> at io.undertow.server.protocol.http.HttpResponseConduit.write(HttpResponseConduit.java:564)
> at io.undertow.conduits.AbstractFixedLengthStreamSinkConduit.write(AbstractFixedLengthStreamSinkConduit.java:106)
> at org.xnio.conduits.Conduits.writeFinalBasic(Conduits.java:132) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at io.undertow.conduits.AbstractFixedLengthStreamSinkConduit.writeFinal(AbstractFixedLengthStreamSinkConduit.java:175)
> at org.xnio.conduits.ConduitStreamSinkChannel.writeFinal(ConduitStreamSinkChannel.java:104) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at io.undertow.channels.DetachableStreamSinkChannel.writeFinal(DetachableStreamSinkChannel.java:194)
> at io.undertow.server.HttpServerExchange$WriteDispatchChannel.writeFinal(HttpServerExchange.java:1829)
> at io.undertow.servlet.spec.ServletOutputStreamImpl.writeBufferBlocking(ServletOutputStreamImpl.java:565)
> at io.undertow.servlet.spec.ServletOutputStreamImpl.close(ServletOutputStreamImpl.java:600)
> at io.undertow.servlet.spec.HttpServletResponseImpl.closeStreamAndWriter(HttpServletResponseImpl.java:497)
> at io.undertow.servlet.spec.HttpServletResponseImpl.responseDone(HttpServletResponseImpl.java:581)
> at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:308)
> at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247)
> at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76)
> at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166)
> at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197)
> at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_20]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_20]
> at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_20]
> 10:57:12,389 ERROR [org.xnio.listener] (default I/O-4) XNIO001007: A channel event listener threw an exception: java.lang.OutOfMemoryError
> at sun.misc.Unsafe.allocateMemory(Native Method) [rt.jar:1.8.0_20]
> at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:127) [rt.jar:1.8.0_20]
> at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311) [rt.jar:1.8.0_20]
> at org.xnio.BufferAllocator$2.allocate(BufferAllocator.java:57) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.BufferAllocator$2.allocate(BufferAllocator.java:55) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.ByteBufferSlicePool.allocate(ByteBufferSlicePool.java:143) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.ssl.JsseSslConduitEngine.<init>(JsseSslConduitEngine.java:146) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.ssl.JsseSslStreamConnection.<init>(JsseSslStreamConnection.java:71) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.ssl.JsseAcceptingSslStreamConnection.accept(JsseAcceptingSslStreamConnection.java:45) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.ssl.JsseAcceptingSslStreamConnection.accept(JsseAcceptingSslStreamConnection.java:37) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.ssl.AbstractAcceptingSslChannel.accept(AbstractAcceptingSslChannel.java:187) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:289) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:286) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.ChannelListeners$DelegatingChannelListener.handleEvent(ChannelListeners.java:1092) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) [xnio-api-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.nio.NioTcpServerHandle.handleReady(NioTcpServerHandle.java:53) [xnio-nio-3.3.0.Final.jar:3.3.0.Final]
> at org.xnio.nio.WorkerThread.run(WorkerThread.java:539) [xnio-nio-3.3.0.Final.jar:3.3.0.Final]
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