Konstantin, On 10/5/13 9:56 AM, Konstantin Preißer wrote: >> -----Original Message----- >> From: Niki Dokovski [mailto:nick...@gmail.com] >> Sent: Saturday, October 5, 2013 7:47 AM >> To: Tomcat Developers List >> Subject: Re: 8.0.x / 7.0.x progress > >>> I have installed Wireshark now and can confirm that Firefox (after it is >>> resumed) still sends data over the TCP connection which Tomcat seems not >> to >>> be able to read. >>> >> >> Are there ACKs for the TCP packets? >> I'll try to reproduce the case. > > Yes, I verified with Wireshark that Tomcat ACKs these packets > correctly, but does not seem to be able to process them. I continued > to send data from Firefox (SEQ went up to 61373) to ensure that the > ACKs were not just resulting from buffering somewhere in the Windows > or Java network stack, and I can confirm that Tomcat still ACKed > these SEQ numbers.
Note that it's not Tomcat sending the ACKs, but the TCP/IP stack in the OS running underneath the JVM. I wanted to point that out because it means that Tomcat may be entirely unaware that data exists for reading for some reason. If Tomcat itself were sending the ACKs, it would mean that Tomcat was at least conceptually aware of the data, but refusing to read it for some reason. -chris
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