Hello Cosimo,
Thank you for the quick reply. After your hint I had the tests run again
but couldn't detect that pattern. What susprised me though after looking
through the logs is that almost all requests by the load generator
complete in a timely manner ( < 1 sec), but all requests generated by a
real browser (IE, FF, Opera) will be served much later or even run into
a timeout.
On 05.01.2011 16:30, Cosimo Streppone wrote:
On Wed, 05 Jan 2011 16:20:31 +0100, George Georgovassilis
<[email protected]> wrote:
I'm having trouble with dropped connections under a loadtest.
The problem: As a measure for response, I am requesting an image from
the webapp running in Tomcat while the loadtest is underway. However
that either times out or is delivered after several seconds. Varnishlog
will often either not show the request (RxURL) at all, or show it
several seconds after the browser dispatched it.
Hi George,
if you measure the time you mention as "several seconds"
and it's either 3 or 9 seconds, I think what you're seeing
is a client-side TCP retransmit timeout.
I experienced that, both under load testing,
and in real production setups.
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