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wierd issue with persistent IPIP HTTP services

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: wierd issue with persistent IPIP HTTP services
From: "Matthew Story" <matthewstory@xxxxxxxxx>
Date: Mon, 30 Oct 2006 11:39:19 -0600
I have this wierd issue . . . basically, on concurrent connections to
the HTTP server, where the client is requesting the same page
concurrently within a 5 second period, I am sometimes greeted by a lag
of 20+ seconds in page load.  This doesn't happen if you navigate to a
different page and then back, or if you wait for 5 to 6 seconds before
a second attempt at a reload.

The HTTP servers have a persistence of 5 seconds, and are forewarded
to via IPIP.  I have a development setup identical to the production
environment, aside from a lack of persistence and it uses GATE not
IPIP, and no problem.  Also if I make concurrent requests to the same
page over and over again to the IP of each real server directly, I do
not get this issue.  This issue also comes and goes, it is not
entirely reproducable, as in, i was producing over and over again
friday, but now cannot repeat.  Any ideas?
--
regards,
matt

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