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Posted to users@httpd.apache.org by Nayman Felix-QA5535 <Fe...@motorola.com> on 2008/04/27 23:37:17 UTC
[users@httpd] Retransmissions seen for HTTP GETs and POSTS
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.