I've posted this before, but since I haven't seen any response and
haven't had any success in debugging this, I'm wondering if anyone can
provide any insight. My previous message is below:
In some testing that I've done, anywhere from 1 to 10% of HTTP GETs and
POSTs that apache receives are resulting in a TCP retransmission. I've
captured a wireshark trace for these retransmissions and noticed that
the HTTP GET or POST is being received, but no TCP ack is being sent
out resulting in a retransmission. When the retransmission is received,
the ack for the initial GET or POST is finally sent back. Has anyone
ever seen such a problem? I don't see this issue with other TCP traffic
so it appears to be related to apache. These tests were run with
Apache 2.2.4 and on Linux 2.6.21. If a wireshark trace would be
helpful I can provide one. Thanks for any input.
