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  1. Undertow
  2. UNDERTOW-1961

SSL Read Loop Detected, UT005076

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Major Major
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      I'm getting the following in my logs:

       

      2021-09-13 17:54:15.522 ERROR [XNIO-1 I/O-2] [ip-xxxx.ec2.internal] io.undertow.request - UT005076: SSL read loop detected. This should not happen, please report this to the Undertow developers. Current state SslConduit{state=20, outstandingTasks=0, wrappedData=null, dataToUnwrap=DefaultPooledBuffer

      {buffer=java.nio.DirectByteBuffer[pos=1548 lim=1600 cap=17408], referenceCount=1}

      , unwrappedData=null}

       

      I'm using Spring Boot Version 2.4.10, undertow-core 2.2.10.Final, and 
      io.projectreactor.netty:reactor-netty:1.0.10.

       

      This error only seems to occur for POST requests coming from Salesforce, but not for POST requests coming from my local box with curl.
       
      The next log is as follows:
       

      2021-09-13 17:54:15.522 DEBUG [XNIO-1 I/O-2] [ip-xxxx.ec2.internal] io.undertow.request.io - UT005013: An IOException occurred
      java.nio.channels.ClosedChannelException: null
      at java.base/sun.nio.ch.FileChannelImpl.transferFrom(FileChannelImpl.java:767)
      at io.undertow.conduits.ReadDataStreamSourceConduit.transferTo(ReadDataStreamSourceConduit.java:48)
      at io.undertow.conduits.FixedLengthStreamSourceConduit.transferTo(FixedLengthStreamSourceConduit.java:127)
      at org.xnio.conduits.ConduitStreamSourceChannel.transferTo(ConduitStreamSourceChannel.java:83)
      at io.undertow.channels.DetachableStreamSourceChannel.transferTo(DetachableStreamSourceChannel.java:70)
      at io.undertow.server.HttpServerExchange$ReadDispatchChannel.transferTo(HttpServerExchange.java:2278)
      at org.xnio.channels.Channels.drain(Channels.java:913)
      at io.undertow.server.HttpServerExchange.endExchange(HttpServerExchange.java:1722)
      at io.undertow.server.AbstractServerConnection$CloseSetter.handleEvent(AbstractServerConnection.java:316)
      at io.undertow.server.AbstractServerConnection$CloseSetter.handleEvent(AbstractServerConnection.java:296)
      at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
      at org.xnio.StreamConnection.invokeCloseListener(StreamConnection.java:80)
      at org.xnio.Connection.close(Connection.java:142)
      at org.xnio.IoUtils.safeClose(IoUtils.java:152)
      at org.xnio.IoUtils.safeClose(IoUtils.java:168)
      at io.undertow.protocols.ssl.SslConduit.runReadListener(SslConduit.java:270)
      at io.undertow.protocols.ssl.SslConduit.access$1600(SslConduit.java:70)
      at io.undertow.protocols.ssl.SslConduit$SslReadReadyHandler.readReady(SslConduit.java:1274)
      at io.undertow.protocols.ssl.SslConduit$1.run(SslConduit.java:183)
      at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:612)
      at org.xnio.nio.WorkerThread.run(WorkerThread.java:479)      		  

              flaviarnn Flavia Rainone
              matthew.hauer@yahooinc.com Matthew Hauer (Inactive)
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                Created:
                Updated: